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Nature Observations Tumblr Repost

MacGregor Point Observations (May 2018)

Once again, I’m going to repost one of my tumblr blog posts, this time from May of 2018.

On May 18-21, 2018, we took a trip to MacGregor Point Provincial Park. Today’s post is going to be a highlight of the animal observations/encounters that we had that weekend.

We awoke early the first morning of our stay and looked at the grey skies that promised rain. Hoping to spot some wildlife beneath the somber dawn sky, we set off on the Tower Trail. Our early start was rewarded with the sight of a strange animal resting in a tree.

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It was a mammal with spines, and the second largest rodent in North America (only beaten by the Beaver): a North American Porcupine (Erethizon dorsatum). After consuming some buds and plants that it foraged in the night it found a perch to rest in for the day, one that seemed awfully thin for the size of the animal.

Further down the trail, we moved through various ponds until the horizon opened into spreading wetlands filled with reeds and bordered by grasses and trees. Here, the red-winged blackbirds (Agelaius phoeniceus) were in abundance, uttering their O-ka-leeeee calls from their various perches. We saw males with their velvet black plumage offset by epaulets of red-and-yellow, and we also occasionally spotted the much more camouflaged females. On our last morning camping, we saw one of the females and believed it to be a different species of marsh-bird, but later came to the realization that it was a female red-winged blackbird.

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Male (top) and Female (bottom) Red-winged Blackbirds (Agelaius phoeniceus).

Mixed with the sounds of the blackbirds, were the trumpeting calls of the Canada Geese (Branta canadensis), always the loudest birds present. As we were leaving the wetlands, we heard a strange call and a bird departing the marsh. We were able to snap a quick picture of it and now believe it’s a Great Egret (Ardea alba).

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Our fleeting glimpse of a Great Egret (Ardea alba).

Throughout our stay, our campsite was host to several small, flitting birds that would rarely sit still. Every time the eyes caught one in full view the birds would then dart off again, a streak of orange flickering through the branches of the tree like an avian fire. We were barely able to take some pictures of these quick warblers foraging among the branches. They were American Redstarts (Setophaga ruticilla), who had returned from their wintering grounds in Central America and northern South America. Like the Red-wings, the male and female birds look very different- the male sporting a dark coat with orange dashes on the wings and chest, and the female a gray-white with yellow patches on the sides.

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Male (top) and Female (bottom) American Redstarts (Setophaga ruticilla). The pictures unfortunately do not capture their boundless energy.

Beneath clear skies the next day, we set off on the Tower Trail once more, hearing and seeing the blackbirds again. On our way through the wetlands trail, we spotted another creature enjoying the warmth and sun: a Northern Watersnake (Nerodia sipedon).

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Northern Watersnake (Nerodia sipedon) basking in the sun.

While visiting the trail near the Visitor’s Centre, we were in the right place to see a creature that resembles a mythical beast: a swimming Snapping turtle (Chelydra serpentina). Snapping turtles are beautiful creatures and the one we saw moved very stealthily. Despite the clear waters, and the size of the reptile, it was difficult to keep track of its scaly skin among the water-plants as it slowly and gracefully swam through.

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Also moving through the waters of the marsh were large tadpoles, with heads the size of a toonie or larger. Some were beginning to display the stubs of legs, but continued to swim in wriggling pollywog fashion, so unlike the athletic strokes of their adult frog legs.

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Once back at our site, I had an itch to use my macro lens to capture some of the tiny creatures that abounded there. Turning over a piece of bark on the gravel of our site, no larger than my palm revealed a portion of a miniature society. Tiny orange-brown ants scurried frantically about. They were Temnothorax ants, which are also known as “acorn ants” because some species of Temnothorax house their entire colony within an acorn.

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Temnothorax ants, tiny workers under a piece of bark.

I turned my gaze on equally tiny, but even more numerous inhabitants of our site. Everywhere one looked in the sun, dark specks that slowly moved or hopped about on the gravel, could be seen. To see them in their full was a delight to me. The specks were Springtails, and these were a quite different kind to the ones I had seen before in the snow and on the trail by our house. These Springtails were like tiny rabbits when one could view them up-close. They were Globular springtails (Order Symphypleona) and I’m fairly sure the species was the Garden Springtail (Bourletiella hortensis) or something closely related: 

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For size context, see the following picture of a Woodlouse (Armadillium vulgare). In the bottom left corner, there is one of the little Springtails:

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In my quest to focus the macro lens on these miniature creatures I inadvertently took a picture of something even smaller than an adult Springtail: a baby Springtail! 

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As if to demonstrate fully the diversity of these tiny almost-insects, an entirely different species of Springtail was also rushing through the gravel: a member of the genus Orchesella, one of the Elongate Springtails: 

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Right at the edge of our site, my friend Marshall sighted a beautiful snake with orange underbelly and stripes along its dark body. We thought it must be a rare species but it turned out to be a variant of the diverse Eastern Garter Snake (Thamnophus sirtalis), which did nothing to diminish its beauty or wonder.

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A beautiful Eastern Garter Snake (Thamnophis sirtalis).

On our last day we went to the Visitor Center trail to feed the Chickadees (Poecile atricapillus) from our hands, along with the occasional red-breasted Nuthatch (Sitta canadensis). Despite some of the rain and cloudy weather, we observed a variety of wild organisms at MacGregor Point and marveled at their diversity and beauty.

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Categories
Nature Observations

Return of the Ravens

Ravens are awesome, beautiful birds.

My parents’ farm property in Norfolk County has been blessed by the construction of a very exciting nest. One day when I arrived at their house and opened my car door I was greeted by the distinctive “croak” of a Common Raven (Corvus corax). The sound startled me, placing me in the woodlands of Algonquin Park, but there was no mistaking that call, and the size of the bird making it. I could see the calling raven, perched atop an unused silo. As exciting as this brief sighting was, the true significance of this bird’s presence was not yet revealed.

Later that same week, my Mom asked about the large crows and mentioned that they were building a nest on top of the silo. She said they went back and forth with sticks in their beaks. Maybe this news wouldn’t be so exciting to some people but for myself the thought of a raven nest that I could regularly observe was exhilarating.

And observe it I have!

On a recent visit, I went back to check out the nest and take some pictures. After only a few moments of watching the silo, I heard the sounds of one of these amazing birds returning and saw it carrying a  large stick in its beak. The raven dropped the stick onto the nest pile without even landing, continuing to soar through the sky on its powerful wings. Apparently, if a dropped stick doesn’t stay in the nest, the ravens won’t pick them up again off the ground (Stokes and Stokes 1989). The sticks are taken from tree branches, broken off by the ravens, not collected from the ground (Stokes and Stokes 1989). In addition to large sticks, the nest could contain dirt and grass clumps as well as an interior lining of gathered hair or bark (Stokes and Stokes 1989).

The raven didn’t even land, just dropped the stick from the air onto its nest.

A few minutes later, a turkey vulture (Cathartes aura) came drifting towards the silo. The large bird seemed to be planning to perch atop the silo, something I have seen vultures do previously. Swooping onto the scene with deep throaty “croaks” the raven pair chased the vulture off into the distance, something that was reminiscent of the classic behaviour of corvids mobbing raptors or owls.

One of the ravens pursuing a turkey vulture.

As I said at the beginning of this post, the call and sight of ravens makes me think of Algonquin Park, and that’s for good reason. Until now, it was the only location I had seen these birds. Ravens used to be common across all of Ontario but mainly due to habitat destruction and human persecution, they have been mostly absent from far southern Ontario for about a century (Cadman et. al. 1987). Ravens were even rare in Algonquin Park until the 1960s because of the poisoned baits left out for wolves (Tozer 2012). The most recent field guide I have (Bezener 2016) still has the raven range map cut off before reaching most of Southern Ontario.

I’ve tried unsuccessfully to find a good source for the current breeding range of ravens in Ontario, but I suppose I’ll have to wait for the next edition of the Breeding Bird Atlas, which is collecting data right now (2021-2025) for its creation. It’s an amazing project, and if you have the time to contribute go for it! Suffice to say, this nest of ravens is a fairly new thing in my area and is very exciting. I hope that they have a successful nesting season, and I have a feeling I will have more posts about this nest in the future! At the time these observations were made (March 29, 2022) the ravens have possibly already laid eggs in the nest, as Tozer (2012) gives a range for Alqonquin raven egg-laying as March 20 – April 19. Stay tuned!

Raven and turkey vulture, showing nicely the relative wingspans of these two large birds.

References:

Bezener, Andy. 2016. Birds of Ontario. 376 pp. Partners and Lone Pine Publishing.

Cadman, M. D., Eagles, P. F. J., and Helleiner, F. M. 1987. Atlas of the Breeding Birds of Ontario. 617 pp. University of Waterloo Press.

Tozer, Ron. 2012. Birds of Algonquin Park. 474 pp. The Friends of Algonquin Park.

Stokes, Donald and Stokes, Lillian. 1989. A Guide to Bird Behavior. Volume III. 397 pp. Little, Brown, and Company.

For Previous articles that have some relevance to this one, see:

Canada Jay (Perisoreus canadensis)

Algonquin Observations, Part 3 – Peck Lake Trail

Fuzzy Flies and Song Sparrows

Categories
Nature Observations Tumblr Repost

Cryptic Caterpillars

In the interests of my own personal goals to post at least once a month, I’m going to re-publish my very first post on my first iteration of the Norfolk naturalist blog, which was on tumblr. I’m planning to re-post all of my articles that I wrote on my tumblr on this site at some stage (possibly with some slight updates/alterations) since I would like them all in one place, and my own website seems like the best place to have that. So here is my first Norfolk Naturalist post, originally published on my tumblr back in 2018 (over 4 years ago!):

While walking the trail near my house, I spotted a twig in an unlikely spot. Instead of forming the final split of a growing or dead branch, the tiny twiglet (just larger than my fingernail) was jutting out into the air from the railing of the bridge. Something strange was going on. On closer inspection, it turned out not to be a twig at all. Rather, a caterpillar had chosen a poor and rather conspicuous spot to hide.

If this caterpillar had chosen a better location, it surely would have fooled me. Even where it was, it was extremely difficult to spot. The coloration and shape of its back was a perfectly mottled gray-brown, and its posture was that of a twig. It was thin-bodied and elongate, only about a millimeter around.

The caterpillar’s odd shape is provided by it having a large space between what are its true legs (the six legs just behind the head) and its ‘prolegs’ which are fleshy stubs coming off of its abdomen. This large space also causes these caterpillars to move in a unique fashion. They lift the front group of legs and extend it forward, reaching ahead and securing themselves there. Then they lift their rear group of legs and move them forward to reconnect with the front legs. Once together, the rear legs hold their place and the caterpillar once more reaches forward with its front legs. This “inching along” process provides this group of caterpillars with their name: the Inchworms (Family Geometridae).

A caterpillar’s main predators are birds which hunt visually. If the caterpillar appears to be something other than a morsel to a hungry bird, then it has succeeded and survived another moment. This type of behavior has a technical name: “crypsis” or “cryptic behavior”, which just sounds amazing. It strikes this cryptic pose when threatened, and so effectively disappears from a hunting bird’s search. I suppose it must have assumed this position when I walked near, thinking me to be hunting it for food. In reality, I was hunting only for a few pictures.

I hope you enjoyed that “repost” from the older version of norfolk naturalist blogging. I promise I’m still working on My Top 20 Nature Photos of 2013-2020 series and I also have several other posts about more recent nature sightings in the works. Hopefully April will be a more productive writing month!

Categories
Nature Observations Top 20 Photos 2013-2020

4. Common Five-Lined Skink (Plestiodon fasciatus)

Subject: Common Five-lined Skink (Plestiodon fasciatus).

Location: Pinery Provincial Park.

Date: May 2017.

For an Introduction to this series (my Top 20 Nature Photos of 2013-2020) go here.

The Story Behind the Shot: As I mentioned in the previous photo-story, I have only rarely sought out a target species when photographing or wandering in nature. Instead, I usually just stumble upon whatever I stumble upon and find out about it later. Not so at Pinery Provincial Park, one of the only locations I’ve visited where I can see a wild lizard. While camping in the park, I had always dreamed of spotting that elusive beast: the Common Five-Lined Skink, the only lizard species that lives in Ontario. It was actually on the way to the bathroom that I spotted this creature, poking out from behind a bulletin board with announcements attached to the outside of the facility. The creature dropped down out of sight when I walked past. I caught sight of the animal out of the corner of my eye and my brain only registered what I saw a few seconds later. Then I raced back to my campsite to retrieve my camera and raced back to hopefully capture some pictures of this almost mythical creature. Thankfully the Skink hadn’t moved away and I was able to take a few pictures, my heart pounding with excitement. 

The Story Behind the Species: Before we get into the more general information about these Skinks, I’d like to take a moment to describe what I can of this individual lizard that I observed and photographed. Because of its size and coloration I can tell you that it was an adult male skink. Young five-lined skinks have a bright pattern of yellow stripes on black, with a strikingly blue tail. Some female skinks retain the blue tail into adulthood but males’ tails usually fade to grey, and they develop a reddish-orange head which is evident in the pictured individual.

Here is another shot of the same individual skink. You can see the striped pattern slightly, and his orange-ish head coloration. No blue tail here, which along with the orange head marks this as an adult male. Also note that this picture (and the one above) is rotated, the tail here is touching the concrete foundation of the restroom.

It takes two or three years for five-lined skinks to reach maturity (Harding and Mifsud 2017), so this individual was likely at least two years old when I encountered it.

Although the five-lined skink is the only lizard species in Ontario, and within the province its distribution is limited to coastal dunes along the edges of the Great Lakes, populations of this species range across much of the eastern United States all the way south to Florida and Texas. Because of this wide range of latitude, some populations experience much colder conditions than others. The populations in Ontario and northern populations in the United States spend the winter inactive and dormant (around the Great Lakes from about October to late April) (Harding and Mifsud 2017). These dormant lizards hide themselves away in stumps or logs, rock or building crevices, or mammal burrows. It’s intriguing to think of a five-lined skink taking refuge from the Canadian winter inside the burrow of a chipmunk and it seems that this likely happens.

In the spring, the skinks emerge from dormancy and form loose territories which males will defend against other males in order to mate with receptive females. A month after mating, the female finds a hidden nest site (in the same sorts of places used for overwintering, see above) and lays up to 20 eggs (Harding and Mifsud 2017). After 1-2 months, the eggs hatch and the hatchlings leave the nest within 1-2 days.

As already mentioned the juveniles have bright blue tails and a pronounced striping pattern down their backs, adult males have bright reddish-orange heads especially during the breeding season (May-June in Ontario). You might expect that these lizards use visual cues for reproduction, and they likely do but they also have a powerful sense of smell which has been shown to be capable of distinguishing reproductive characteristics of other skink individuals (such as maturity and sex) and a related species has even been shown to be able to distinguish individuals by scent (Cooper 1996).

It seems that the bright blue tails are more of an antipredator adaptation than a visual signal to other skinks (though it no doubt functions as both). How does the tail help a skink escape predation? The colour draws the eye of visually-hunting predators, distracting from more vulnerable parts of the skink such as the head or torso. And I’m sure you’ve heard this one before: if seized by a predator, the tail can become detached and will even wriggle for several minutes on its own.

What sort of predators hunt five-lined skinks? Basically anything that can catch these swift little lizards: snakes, mammals, birds, and perhaps most surprisingly… Spiders. An excellently illustrated and fascinating book about lizards, Lizards: Windows to the Evolution of Diversity (Pianka and Vitt 2003), contains a photo of a juvenile five-lined skink caught by a spider (p. 66). Usually the invertebrates are on the menu for the skink which feeds on a wide variety of leaf-litter inhabitants. Large skinks will feed on small vertebrates as well such as frogs or baby mice.

Well, that’s that: the only lizard species in Ontario, and I was lucky enough to see and photograph it.

Next up is a two-for-one (two species in one photo) which features an insect that has caught another, both species are fascinating. Stay tuned…

References:

Cooper, W. E. Jr. 1996. “Chemosensory recognition of familiar and unfamiliar conspecifics by the scincid lizard Eumeces laticeps.” Ethology 102: 1-11. cited in: Pianka, Eric, and Vitt, Laurie. 2003. Lizards: Windows to the Evolution of Diversity.

Harding, James H. and Mifsud, David A. 2017. Amphibians and Reptiles of the Great Lakes Region: Revised Edition.

Pianka, Eric, and Vitt, Laurie. 2003. Lizards: Windows to the Evolution of Diversity.Pianka, Eric, and Vitt, Laurie. 2003. Lizards: Windows to the Evolution of Diversity.

For the previous articles in my Top 20 Nature Photos of 2013-2020 series, see:

Introduction

-1. The Pale-Painted Sand Wasp (Bembix pallidipicta)

2. Moose (Alces alces) Family

3. Canada Jay (Perisoreus canadensis).

Categories
Nature Observations Top 20 Photos 2013-2020

2. Moose (Alces alces) Family

Subject: Moose (Alces alces) Mother and Calves.

Location: Algonquin Provincial Park.

Date: July 2016.

For an Introduction to this series (my Top 20 Nature Photos of 2013-2020) go here.

The Story Behind the Shot: For several summers, I have stayed in Algonquin Provincial Park for a week, camping in Pog Lake Campground and exploring various trails and locations along the Highway 60 corridor, attempting to photograph interesting creatures that I encountered. One of the most quintessential Algonquin animals is the Moose, and I didn’t spot one on this trip until we were on our way out of the park, driving down the highway early in the morning. This family group of Moose (a mother and two calves) was an amazing treat to watch as they continued to browse some foliage and walk through the clearing adjacent to the road.

The Story Behind the Species: Moose are large mammals, the largest land mammal that one can encounter in Eastern North America. As such, they have been the subject of plenty of research and interest. For this post I want to focus on their reproductive cycle since the photo I captured features a mother and her two calves. Calves are born in May, after 7 months of growth within the mother. Pregnant Moose will often seek out islands in lakes as the location to give birth as it provides some protection from roaming bears or wolves (Strickland and Rutter 2018). You may be wondering how a mother moose can reach an island that a bear or wolf won’t frequent. Moose are actually quite excellent swimmers, they can feed on underwater plants, can swim to depths of 5.5 m and stay under for more than 30 seconds (Naughton 2012). The two young in my photo are likely twins since they appear to be the same size. Apparently, “twins are not uncommon under good conditions” (Naughton 2012). The young stay with their mother for a full year before they disperse (Strickland and Rutter 2018).

A fascinating animal and one I’m sure I will return to explore further on my blog in the future.

References:

Naughton, Donna. 2012. The Natural History of Canadian Mammals.

Strickland, Dan and Rutter, Russell. 2018. Mammals of Algonquin Provincial Park.

For the previous articles in my Top 20 Nature Photos of 2013-2020 series, see:

Introduction

-1. Pale-Painted Sand Wasp

For more observations in Algonquin Park, see my Algonquin Observations (August 2021) series:

Part 1: Pog Lake Campground

Part 2: Opeongo Road

Part 3: Peck Lake Trail

Part 4: Spruce Bog Speedrun and the Logging Museum Trail

Part 5: Spruce Bog: The Reckoning

Categories
August 2021 Observations Nature Observations

Parasitic Plants and other Non-Fungi (NFN Fungi Hike Part 3)

Last August, I went on a hike in Backus Woods with the Norfolk Field Naturalists to identify and photograph fungi. For the first two parts of the observations I made during the hike, see Part 1 and Part 2. My two previous posts covered all of the fungi (and several interesting non-fungi including wood frogs and fungus weevils) that I photographed and described some of their interesting biologies and ecologies. This final post is a roundup of the non-fungi observations I made during the hike.

You would be forgiven for thinking that this next observation also represented the fruiting body of a fungus. Instead, this drooping white organism is actually a plant without chlorophyll (and thus without the colour green and without the ability to capture light from the sun and turn it into sugar). Ghost Pipes (Monotropa uniflora) are parasitic plants, which feed indirectly on the roots of their host trees via underground fungi that attach to the roots in a mycorrhizal relationship (Runtz 2020). The flower heads droop, and give this strange flower its name of “pipe” but when they are pollinated (by bees usually) they will raise their flowers straight upward (Runtz 2020).

Some more traditional plants (you know, ones that are green and perform the magic of photosynthesis) were also spotted along the trails. I learned that the bright red clusters of berries were the ripened fruits of George-Michael-in-the-Banana-Stand (Arisaema triphyllum)*. Besides the red berry clusters, we also saw representatives with green berries that hadn’t ripened yet. Although they may look edible, these red berries contain high levels of oxalic acid and cause painful burning in people that eat them… although apparently white-tailed deer, wild turkeys and wood thrushes will eat them and be fine (Holland 2016).

*more traditionally, the common name is Jack-in-the-Pulpit and most people probably know it by this name, but I couldn’t resist using the new common name proposed by The Field Guides Podcast (for my review of the Field Guides Podcast go here)

Another red-berried plant was a new one for me: Partridgeberry (Mitchella repens). These red berries are edible, but apparently tasteless. The flowers are pollinated by bumblebees and as the name suggests the berries are consumed by ground-birds (such as grouse and turkeys), but also by skunks and white-footed mice (Hayden 2012). You would think that partridges would eat these berries… but we don’t have any partridges in North America, and this species only grows here… so here we have a very useless common name.

Partridgeberry growing and spreading through the leaf litter.

Two other wildflowers added colour and beauty to our hike: Spotted Jewelweed (Impatiens capensis) and Great Blue Lobelia (Lobelia siphilitica). Spotted Jewelweed is pollinated mainly by hummingbirds and bees, while the Great Blue Lobelia is pollinated mostly by bumblebee (Eastman 1995). I unknowingly captured this interaction between Ruby-throated Hummingbirds and Spotted Jewelweed in the past, so I’ve included a picture here.

A few interesting arthropod encounters also enhanced the hike. An American Giant Millipede (of the Narceus americanus complex)* was found in curled defensive posture. 

*the complex refers to the fact that this “species” is actually made up of many species that may be extremely difficult to distinguish

American Giant Millipede in defensive spiral. I didn’t mean to disturb you!

On the way out of Backus Woods, I spotted some speedy insects scurrying across the sands and gravels of the path, those predatory jewels known as Tiger Beetles (Cicindelinae). The two species that I spotted and photographed were the Punctured Tiger Beetle (Cicindela punctulata) and the Big Sand Tiger Beetle (Cicindela formosa). 

I hope you enjoyed this tour through Backus Woods with a focus on Fungi. I know I learned a lot and am excited for future outings with the Norfolk Field Naturalists!

References:

Eastman, John. 1995. The Book of Swamp and Bog.

Hayden, W. John. 2012. “2012 Wildflower of the Year: Partridge Berry, Mitchella Repens.” Virginia Native Plant Society Brochure, 2012, 1-3.

Holland, Mary. 2016. Naturally Curious Day by Day.

Runtz, Michael. 2020. Wildflowers of Algonquin Provincial Park.

For more Nature Observations in Norfolk County, see:

-Fascinating Fungi (NFN Fungi Hike, Part 2)

Freezing Frogs and Fascinating Fungi (NFN Fungi Hike Part 1)

-A Visit to Big Creek, Part 1 and Part 2

The Wonders of Wrens

Cuckoo Wasps and Carpenter Bees

Flies Falling to Fungi and Other Dipteran Observations

Fuzzy Flies and Song Sparrows

Leafhoppers, Lepidopterans and Longhorns

And for more nature observations, photos and natural history facts, follow me on instagram at norfolknaturalist

Categories
August 2021 Observations Nature Observations

Fantastic Fungi (NFN Fungi Hike, Part 2)

Back in August, I went for a hike with the Norfolk Field Naturalists to search for Fungi to photograph (see Part 1). Along the way, I encountered many organisms both fungal and not-so-fungal.

One non-fungus was photographed perched atop some fungi on a log. The creature was a Marbled Fungus Weevil (Euparius marmoreus), which feeds on polypore fungi (Marshall 2018).

Marbled Fungus Weevil, the only time I used my macro lens on this entire hike.

The next observation brings us back to the focus of the hike: Fungi. This strange spherical object covered in a lacework pattern is the fruiting body of an Earthball (Scleroderma). These fungi actually interconnect with tree roots to form mycorrhizal associations, benefitting the trees and the fungus (Stephenson 2010).

Earthball (Scleroderma), the fruiting body of a mycorrhizal fungus.

Another spherical object caught our eye while hiking through the woods: an Oak apple gall. This particular one was caused by Amphibolips cookii, a Gall Wasp feeding within the bud of a Red Oak (Quercus rubra). The bud developed into this spherical gall, while the larva fed within and then this “oak apple” detached and fell to the forest floor, and I guess the adult wasp has already left this gall behind? I don’t know, it was very difficult to find any information about this species or gall wasps (Cynipidae) in general despite them being fascinating insects (what I did find was a website that contains some information: gallformers.org, a site worth checking out if interested). I have a particular fondness for galls caused by insects… they’re plant growths that create particular species-specific patterns for the insects that inhabit them… what’s not to like?

Oak Apple Gall (caused by Amphibolips cookii).

Further down the trails, we encountered some classically shaped mushrooms unlike the more bizarre (in my opinion) Earthballs (Scleroderma). A member of the genus Oudemansiella and a member of the genus Russula.

Oudemansiella mushroom.

Russula fungi are ectomycorrhizal, meaning that their underground mycelia (the major part of the fungal body) connect with roots of trees and other plants to transfer and exchange nutrients (Stephenson 2010). 

Russula mushroom.

Some of the most common fungi that we spotted were associated (as many fungi are) with dead or dying wood. Fungi that feed on dead or decaying material are known as saprotrophs. Orange Mycena (Mycena leaiana) were spotted multiple times throughout our excursion and I have to say they might be my favourite fungi that we found simply for aesthetic reasons. The beautiful colour of their fruiting bodies really brighten up the dead logs and fallen trees in the forest. 

Another wood-feeding saprotroph we found often is known as the “Oyster Mushroom” (Pleurotus), apparently because of its fishy smell (which I couldn’t detect, perhaps it needs to be cooking?). These are very commonly collected for humans to eat.  As mentioned above, the Oyster Mushrooms feed on decaying and dead wood, but they also feed on microscopic creatures called nematodes. The details of the interaction are incredible. The Pleurotus fungi has special cells among its hyphae (the underground components of the fungal mycelium) which produce a toxin that paralyzes nematodes. After contact, the nematodes continue moving (usually much slowed, and erratically) for 30 seconds to several minutes before succumbing to the paralyzing toxin. The immobilized nematodes are then attractive to fungal growth from the Pleurotus mycelium, which produces hyphae that thread through the material (usually dead wood or soil) to reach the nematodes and enter their bodies. These fungal threads break the nematode down, consuming it while it is still alive but paralyzed. If you’re interested in more of these details, you can read the full paper where it’s described (Barron and Thorn 1987) here: https://cdnsciencepub.com/doi/10.1139/b87-103.

Pleurotus mushroom, unassuming destroyer of wood and nematodes.

There were a couple of other saprotrophic fungi found feeding on logs during the hike. Resinous Polypore (Ischnoderma resinosum) has a strange texture that was unexpected, though appearing like tougher shelf fungi it was actually quite soft and pliable. Our guide likened it to the feel of a donut and I can attest that this assessment is bizarrely valid.

Resinous Polypore, strangely soft and light.

Not all fungi grow on logs however, and there are several interesting groups that are very easy to miss. One colorful but tiny fungus is the Red Chanterelle (Cantharellus cinnabarinus) which grows singly or in clumps and is connected to the root systems of trees in yet another mycorrhizal relationship.

Red Chanterelle peeking out from the leaf litter.

Two representatives of a more bizarre ground-sprouting group would have been easily missed. This group is known as the “Earth-tongues” (Family Geoglossaceae). You can (perhaps unfortunately) see their resemblance to strange tiny tongues protruding from the soil. Our guide was quite excited to have spotted the dark Earth-tongues (identified via iNaturalist as Trichoglossum because of the tiny hairs) because they would be very easy to miss.

That brings us to the end of the fascinating fungi that I spotted on our hike! It is not the end however of the non-fungal sightings. A few more of those to review in the final part of this ‘series’.

References:

G. L. Barron and R. G. Thorn, 1987. Destruction of nematodes by species of PleurotusCanadian Journal of Botany65(4): 774-778. https://doi.org/10.1139/b87-103

Marshall, Stephen. 2018. Beetles: The Natural History and Diversity of Coleoptera.

Stephenson, Steven. 2010. The Kingdom Fungi.

For other Nature Observations in Norfolk County, see:

Freezing Frogs and Fascinating Fungi (NFN Fungi Hike Part 1)

-A Visit to Big Creek, Part 1 and Part 2

The Wonders of Wrens

Cuckoo Wasps and Carpenter Bees

Flies Falling to Fungi and Other Dipteran Observations

Fuzzy Flies and Song Sparrows

Leafhoppers, Lepidopterans and Longhorns

And for more nature observations, photos and natural history facts, follow me on instagram at norfolknaturalist

Categories
Nature Observations

Freezing Frogs and Fascinating Fungi (NFN Fungi Hike, Part 1)

I recently joined a local group of nature enthusiasts known as the Norfolk Field Naturalists. My very first outing with the Norfolk Field Naturalists was a hike through the Backus Woods Conservation Area with a local Fungi expert Leanne Lemaich. The hike was rewarding for the opportunity to meet up with others who share my passion for learning about the nature around us, and I learned a lot about the various fungi in the area. I used my camera extensively, capturing fungi and non-fungi (some new ones for me!) as you’ll see below. All in all, it was a great experience despite feeling as though I singlehandedly sponsored the next generation of mosquitoes with most of my blood supply…

Let’s begin with a brief primer on Fungi, because that’s how our hike began as well. Despite being classified so often with plants, fungi are actually more closely related to animals, but in any case they are neither. Unlike plants, fungi can’t produce their own energy, ie. they don’t contain chlorophyll, the pigment that makes leaves green and captures energy from the sun to create sugars/carbons (the incredible process known as photosynthesis). Instead, fungi feed on other organisms just like all animals do. Many fungi feed on dead organisms (termed saprophytic, or saprotrophic), but there are also many that feed on or within living organisms and still others form symbiotic relationships (which can grade into parasitism… the difference between symbiosis and parasitism is actually very grey-shaded). Although most of a fungus is composed of tiny threads that grow and proliferate out of sight, there are extraordinary structures that appear for reproductive purposes and these are collectively called “mushrooms”. I like to think of mushrooms as the equivalent of flowers, because they’re the visible part that facilitates reproduction just like the flowers in plants (via insects/other organisms/wind/rain/other weather processes in both instances). Now that we have a (very) basic idea of what fungi are, we can move onto some of the particular ones I observed and photographed on this hike, as well as many non-fungi spotted along the way!

Our first fungal find was a Bolete (Family Boletaceae), and the first incredible fact that I learned was that this mushroom couldn’t be identified without a… taste test. We hear so often about the dangers of foraging for mushrooms, because there are poisonous lookalikes to edible species and such, that I was very intrigued to learn that some mushrooms are identified by taste. Of course, I will reiterate the warning you will hear literally everywhere mushroom foraging is mentioned (and for good reason): DON’T EAT MUSHROOMS IF YOU’RE UNSURE OF THEIR ID.

Unidentified Bolete emerging from the leaf litter.

Next up was a familiar species even to me, a comparative novice when it comes to fungal identification: Turkey-tail (Trametes versicolor). This common species feeds on dead wood, and contains enzymes able to break down cellulose and lignin at the same time (Stephenson 2010). These are the two main components of plant cell walls, and are notoriously difficult for animals to digest.

Turkey-tail fungus growing out of the side of a log.

Several times during the hike, we came upon Coral fungi, which unsurprisingly resemble underwater corals in their branching structures. Our guide identified some of these as possible Ramaria species, but she also pointed out a false coral (Sebacina schweinitzii).

This next unassuming organism isn’t a fungus, but rather a strange living thing called a slime mould, specifically the Dog-vomit Slime Mould (Fuligo septica). The Dog-vomit Slime Mould is part of a group known as the plasmodial slime moulds, the Myxomycetes. Myxomycetes have a complicated and confusing life cycle. They have two feeding stages: the first consists of single cells which move and feed within their environment like amoebae (Stephenson 2010). These single cells reproduce and form a plasmodium, which is still a mass of what might be termed a single cell because it doesn’t have any cell walls, but it contains many nuclei (Stephenson 2010). In both of these stages, myxomycetes usually feed on bacteria or fungi that they encounter. I believe the Dog-vomit slime mould that I encountered was in this plasmodium stage, possibly preparing for its ‘final form’ which would be the production of fruiting bodies which would disperse tiny spores to start the process all over again (Stephenson 2010). Bizarre organisms… aliens of the forest floor.

Dog-vomit Slime Mould.

We encountered one other species of slime mould during the hike which was much more aesthetically pleasing than the one named after dog-vomit… the Red Raspberry Slime Mould (Tubifera ferruginosa).

Red Raspberry Slime Mould. For scale, note the blurry Harvestman (Opilione) to the right of the Slime Mould fruiting bodies.

While stepping through the undergrowth to approach some fungi, I disturbed some hopping amphibians at my feet. At first glance, we thought they were regular toads (ie. Eastern American Toads: Anaxyrus americanus) and some of them were, but one stood out as something distinctively different. This frog was one that I had never seen before, though I had heard its strange “quacking” calls during hikes in the past: a Wood Frog (Lithobates sylvaticus). Part of the reason I haven’t seen them is their superb camouflage, which consists of not only a generalized leaf-litter brown pattern. Wood Frogs also exhibit background matching: changing their skin to match their surroundings. While in breeding ponds in the Spring they are darker (and thus match the water more closely), and assume a lighter coloration when among the generally lighter leaf litter of their environment for the rest of the year (Wells 2007).

Wood Frog among the leaf litter. Pretty well camouflaged, I must say.

One of the facts that always comes to the fore of my mind when I think of Wood Frogs is not their strange call, or their camouflage, but the fact that they can tolerate being frozen. Wood Frogs, at the onset of winter, have physiological mechanisms that promote ice formation between their cells, and prevent ice formation within their cells. What this response amounts to is well described by Bernd Heinrich in Winter World: “the frog is frozen solid except for the insides of its cells. Its heart stops. No more blood flows. It no longer breathes. By most definitions, it is dead.” (Heinrich 2003, p 174). The incredible part of the story is that the Wood Frog is not dead, but rather will await the arrival of spring beneath the leaf litter and revive during warmer temperatures. They can in fact revive from frozen to active within a single day (Harding and Mifsud 2017). As Heinrich says, Wood Frogs are “biological marvels that challenge the limits of our beliefs of what seems possible.” (Heinrich 2003 p 175).

Another Wood Frog spotted during the hike.

As I mentioned above, Wood Frogs weren’t the only anurans (frogs and toads) spotted during our hike. On several occasions, we observed American Toads (Anaxyrus americanus) on the forest floor. I don’t have anything particularly interesting to say about toads right now, besides that they are amazing to look at if you take the time. Below are pictures of a particularly large toad (about the size of my fist) and a smaller toad, which was captured from an unusual angle. The angle really makes me reassess toads in general but maybe that’s just me.

For no particular reason, I’m going to pause here for Part 1! Keep an eye out for future parts, because during this hike I spotted many more fungi, and some more non-fungi as well.

References:

Harding, James and Mifsud, David. 2017. Amphibians and Reptiles of the Great Lakes Region, Revised Edition.

Heinrich, Bernd. 2003. Winter World.

Stephenson, Steven. 2010. The Kingdom Fungi.

Wells, Kentwood. The Ecology and Behavior of Amphibians.

For similar Nature Observations in Norfolk County see:

-A Visit to Big Creek, Part 1 and Part 2

The Wonders of Wrens

Cuckoo Wasps and Carpenter Bees

Flies Falling to Fungi and Other Dipteran Observations

Fuzzy Flies and Song Sparrows

Leafhoppers, Lepidopterans and Longhorns

And for more nature observations, photos and natural history facts, follow me on instagram at norfolknaturalist

Categories
August 2021 Observations Nature Observations

Algonquin Observations, Part 5 – Spruce Bog: The Reckoning

The temperature was up, the sun was out, and with it the invertebrates were active and visible. I arrived at the Spruce Bog Boardwalk Trail with my macro lens equipped, and I used it quite extensively.

At the beginning and near the end of the trail, I took pictures of Hooded-Owlets (Cuculia), which are not baby owls with their faces obscured, but instead the name for a genus of moths (these moths have some crazy names. One of the species I observed is similar to a moth that goes by the common name “Asteroid Moth”… I have no idea why…). The first was a brightly striped caterpillar of the Brown Hooded-owlet (Cuculia convexipennis).

Brown Hooded-Owlet Caterpillar.

Near the end of the trail I found another Hooded-Owlet, and I’m not so sure on the identification for this one, but it was much less colourful than the first.

Unidentified Hooded-Owlet (Cucullia sp.).

Landing briefly on a flower was a Tachinid Fly in the Genus Phasia. Tachinids are fascinating Flies and incredibly diverse. This is what Stephen Marshall has to say about them in his incredible book about Flies: “The Tachinidae is in many ways the ultimate fly family. With almost 10 000 named species and thousands more awaiting description, this ubiquitous group… exhibits an unparalleled variety of sizes, shapes and colors. The range of life history strategies is equally amazing, at least within the constraint that every known species in the group is a parasitoid that develops inside another insect… or related arthropod.” (from Marshall 2012, p 386). Phasia tachinids are parasitoids of True Bugs in the families Pentatomidae and Pyrrhocoridae (Marshall 2012).

Phasia Tachinid Fly perching on a flower, possibly P. auralans?

Another flower was visited by a wasp of the Ectemnius genus. These wasps are part of a group of wasps called the “Square-headed wasps” (Subfamiily Crabroninae) and I think you can see that characterization borne out here. I certainly noticed its huge head right away while taking the pictures. Members of the genus Ectemnius hunt mostly adult Flies (Diptera) which they store in their nests for their larvae to feed on. Some species of Ectemnius wasps nest in soil, while others nest in rotten wood (O’Neill 2001).

Ectemnius wasp, visiting a flower.

Visiting flowers for nectar is a common activity for many groups of flying insects. This fact has been exploited by predators, and I spotted one of these on a flower nearby: a Jagged Ambush Bug (Phymata) lying in wait with raptorial (that is, grasping) front legs at the ready to nab unwary pollinators.

Ambush Bug lying in Ambush. Look at that incredible profile.

I spotted some mating grasshoppers on a leaf, which were otherwise engaged and allowed me to take some decent photos. If you know something about Orthopterans (members of the Order Orthoptera, which includes Katydids, Grasshoppers, and Crickets) you might know that unlike butterflies and moths (Order Lepidoptera) and many other insect groups which have very distinct larval forms, young stages of grasshoppers appear the same as adults except for the absence of wings. This photo might be confusing then… since these grasshoppers are clearly mating (a strictly adult activity) and they clearly don’t have wings (a characteristic of larvae). The problem is solved when you find out that the species is called the Wingless Mountain Grasshopper (Booneacris glacialis). Although possessing wings as adults is a characteristic of all major insect groups, there are members of all groups which have later (as in evolutionarily later) lost the wings. 

Mating Wingless Mountain Grasshoppers.

Within the sparse woods of the Black Spruce Trees, I found a caterpillar of the Datana genus. These caterpillars stick together in their younger stages, and separate when they are in their final larval stage before adulthood (Marshall 2006).

Datana Caterpillar, likely in its final larval stage because it was alone.

Growing out of the side of the railing on this part of the boardwalk trail was the beautiful branching form of a Beard Lichen (Usnea). Lichens are truly the Corals of the terrestrial realm: they have similar appearances and colours (some are green, brown, orange etc), but they also consist of a partnership* between two very different forms of life. Corals consist of an animal and algae living together and Lichens consist of fungi and algae. 

*this is of course a very simple way of describing the relationship between a lichen fungus and a lichen alga. In fact, there can be many variations on the degree of partnership, with many relationships resembling parasitism rather than traditional ‘symbiosis’.

Usnea Beard Lichen growing out of a bridge railing. If this picture had enough blue tint, you might believe it was a photo of a coral attached to a shipwreck.

Once past the railing I came upon the wildflower meadow, which housed an appropriate medley of visiting Insects. Hymenoptera were present in abundance. A Yellow-Banded Bumble Bee (Bombus terricola) busily moved from flower to flower, thrumming through the air. Bumblebees amaze me, and they almost seem like they shouldn’t be able to fly with their stout fuzzy bodies but they fly quite well enough for their purposes.

Yellow-Banded Bumblebee.

A brief appearance by a member of the Sand Wasps (Bembicidae) was an exciting find (have to continue the Sand Wasp series some time, I’ve only done the Introduction and one tribe!). The Sand Wasp I observed in Algonquin is possibly a member of the genus Gorytes. Species in this genus fill their nests with True Bugs, mostly Hoppers (members of the families Cercopidae, Cidadellidae, and Membracidae) (Evans and O’Neill 2007).

Sand Wasp, possibly a Gorytes.

The Spider Wasp Episyron was a very distinct Hymenopteran. Although it sort of has a squat appearance somewhat reminiscent of Spiders, the name “Spider Wasp” comes from the fact that these wasps (members of the Family Pompilidae) hunt Spiders which they feed to their young. Species in the genus Episyron hunt specifically Orb-weaver Spiders (Araneidae) (O’Neill 2001).

Episyron Spider Wasp.

Flower Flies (Syrphidae) were of course frequently seen visiting the flowers. Frustratingly, a new one to me was elusive enough that I didn’t manage to get a very good picture of it. This was the largest Flower Fly I’ve ever seen (though not large in most terms, probably about honeybee size) a member of the Genus Sphaerophoria.

Sphaerophoria Flower Fly.

Not as common, and certainly not as associated with flowers were a couple of Beetle species I observed visiting the flowers. One was a click beetle (Elateridae), possibly of the genus Dalopius. Apparently click beetles aren’t usually desirable flower visitors as they are often feeding on the flowers and pollen themselves (as opposed to the nectar), and don’t contribute to pollination very often (Willmer 2011). Dalopius feeds on other Insects, so perhaps it’s hunting among the flowers for prey, and/or snacking on pollen in the meantime (Marshall 2006).

Click Beetle (Dalopius sp.?) among the flowers, possibly eating pollen, possibly hunting prey.

By contrast, the other flower-visiting beetle that I observed was part of the Family Cerambycidae (the longhorn beetles), which is a group that includes important and frequent pollinators (Willmer 2011). The Red-shouldered Pine Borer (Stictoleptura canadensis) is part of the aptly named subfamily Lepturinae (the flower longhorns) within Cerambycidae.

Red-shouldered Pine Borer, a Flower Longhorn Beetle.

One wildflower that caught my attention as I was continuing down the trail was a small purple flower with strangely square-shaped petals. The flower was a Common Selfheal (Prunella vulgaris). As you can guess from the common name, this flower was used in the past to cure many different illnesses, particularly of the mouth and throat because of the flower’s resemblance to a yawning mouth (Wernert 1982)… because that’s how things were supposed to work…

Leaving behind the multitude of flowers and insects of the wildflower meadow area, I was arrested by the sight of a peculiar tiny insect: a Barklouse (Order Psocoptera). As Marshall writes in his excellent overview of Insects “One doesn’t hear much about barklice.” (Marshall 2006). Indeed, though this individual is beautifully patterned and distinctive (I believe it’s Metylophorus novaescotiae) I can find little information about this creature. If my identification is correct, I can say that this species lives on shrub and tree branches (Mockford 1993), and presumably feeds on lichen there. Most members of the Order Psocoptera produce silk out of their mouths (specifically, labial glands), and some use this to cover their eggs, while others use the silk to construct shelters for themselves or others (!). There’s a tropical group called the Archipsocidae which can create silken shelters that “enshroud entire trees”, and in which there is some form of sociality (Costa 2006). I would love to learn more about these amazing insects.

Barklouse (possibly Metylophorus novaescotiae).

The final observation of my hike forced me to switch back to my telephoto lens. I actually thought for a second I was seeing a bird zooming back and forth above the path because of the size of the animal, but it was in fact an insect, and more specifically a Variable Darner Dragonfly (Aeshna interrupta). These Dragonflies are among the more acid-tolerant of Ontario Odonates so it makes sense that this individual could have developed as a larva within the acidic waters of the Spruce Bog (Pollard and Berrill, 1992). This amazing dragonfly (possibly about 15 cm long) was my last observation on the Spruce Bog trail and an excellent contrast to the diminutive (less than a cm long) barklouse, demonstrating once again the incredible diversity of the Insects.

Variable Darner Dragonfly at rest, after foraging across the trail.

References:

Costa, James. 2006. The Other Insect Societies.

Evans, Howard and O’Neill, Kevin. 2007. The Sand Wasps: Natural History and Behavior.

Marshall, Stephen. 2012. Flies: The Natural History and Diversity of Diptera.

Marshall, Stephen. 2006. Insects: Their Natural History and Diversity.

O’Neill, Kevin. 2001. Solitary Wasps: Behavior and Natural History.

Pollard, J. B., and Berrill, M. 1992. The distribution of dragonfly nymphs across a pH gradient in south-central Ontario lakes. Canadian Journal of Zoology https://doi.org/10.1139/z92-125

Wernert, Susan. 1982. Reader’s Digest North American Wildlife.

Willmer, Pat. 2011. Pollination and Floral Ecology.

And with that, I have finally completed my five-part journey through my 2021 Algonquin Observations series. What’s next for the Norfolk Naturalist? More nature observations, this time in Norfolk County itself (a fungi-spotting hike in Backus Woods with the Norfolk Field Naturalists), and a Podcast Review. Also, I attended Tetzoomcon 2021 this past weekend and it was awesome! A detailed post about the event will follow hopefully soon…

For previous Algonquin Observations (2021), see:

Part 1: Pog Lake Campground

Part 2: Opeongo Road

Part 3: Peck Lake Trail

Part 4: Spruce Bog Speedrun and the Logging Museum Trail

For Other Nature Observations in Algonquin Park, see:

-Algonquin Observations (July 2018), Day One, Two, Three, Four, Five, Six

And if you’re interested in seeing more of my photos and learning some facts about the organisms I’ve observed, follow me on Instagram at norfolknaturalist.

Categories
August 2021 Observations Nature Observations

Algonquin Observations, Part 4 – Spruce Bog Speedrun and the Logging Museum Trail

The Spruce Bog Boardwalk is a trail that runs through (and also, over) the fascinating ecosystem of a northern bog. Bog “soil” is composed of decaying plant matter known as peat, and this substrate is extremely acidic, allowing only certain types of plants to grow within these wetlands. The ones that do are hardy species and the most conspicuous is the only species of tree to thrive here: the Black Spruce (Picea mariana). Black Spruce are scraggly trees, but they are trees which live in such a difficult environment that they are truly impressive.

Certain portions of the Spruce Bog trail feature beautiful wildflowers and insects, but on this occasion I rushed through the trail for personal reasons*, only stopping to snap a picture near the very end of the trail. The bird I photographed is related to the Eastern Kingbirds (Tyrannus tyrannus) that I saw perched near the Opeongo Lake Road, it was an Eastern Phoebe (Sayornis phoebe). 

*essentially it had to do with a small tired person accompanying me

Small Tyrannid perched in a tree, searching for prey.

Eastern Phoebes are part of the Tyrannidae Family of birds and if you’re thinking that sounds like a Family of Dinosaurs then I’d like to mention briefly that you would be 100% correct. Tyrannidae is a Family of Dinosaurs, because ALL Birds are Dinosaurs that have survived the mass extinction of other branches of the Dinosaur family tree (including the branch called Tyrannosauridae, ie Tyrannosaurus and kin, which is the one you were probably thinking of). Tyrannidae (the Tyrant Flycatchers) is not especially close to the Tyrannosauridae (the Tyrant Dinosaurs) of course, but they are both included within Dinosauria. 

Anyway, another extant (as opposed to extinct) Dinosaur species that I observed was on the Logging Museum Trail, floating swiftly between Water lilies: the Hooded Merganser (Lophodytes cucullatus). The photographed individual (a female, I believe) isn’t raising its headfeathers into a crest, which is where it’s name of “hooded” merganser comes from. These ducks nest in tree cavities (so not just Wood Ducks do this… huh…) using old Woodpecker nest cavities most of the time (Tozer 2012).

Hooded Merganser sans hood.

Two wildflower species caught my eye on the same trail that day. One was a relative of the Steeplebush (Spiraea tomentosa) (see Peck Lake observations), being part of the same Genus Spiraea. White Meadowsweet (Spiraea alba) is more popular with Butterflies than the Steeplebush, as it produces more nectar than the former (Runtz 2020).

White Meadowsweet against a backdrop of green.

The other wildflower was Virgin’s-Bower (Clematis virginiana) and it was being attended to by Blackjacket Wasps (Vespula consobrina).

Virgin’s-Bower with Blackjacket Wasps landing among the flowers.

Let the Blackjacket Wasps serve as a teaser for the final chapter of my Algonquin observations: Spruce Bog: the Reckoning, in which I return to the Spruce Bog trail and take a very long time to walk it, Macro Lens equipped! Move over Birds and Flowers (well, there will be some flowers)! It’s finally time for the Insects to take their usual place in the spotlight of my camera!

References:

Tozer, Ron. 2012. Birds of Algonquin Park.

For previous Algonquin Observations (2021), see:

Part 1: Pog Lake Campground

Part 2: Opeongo Road

Part 3: Peck Lake Trail

For Other Nature Observations in Algonquin Park, see:

-Algonquin Observations (July 2018), Day One, Two, Three, Four, Five, Six

And if you’re interested in seeing more of my photos and learning some facts about the organisms I’ve observed, follow me on Instagram at norfolknaturalist.