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Blackburnian Warbler and His Ancestor from the 18th Century

Blackburnian Warbler

When I submitted a photo of this bird corpse to the Merlin Id app, I learned that my bird, an adult male Blackburnian Warbler, is easy to identify and “a fan favorite.” “Flame orange throat” : check. “Triangular black cheek patch”: check. “Oddly shaped white wing patch”: check.

So how did this charismatic figure acquire such a formal moniker? Our bird was discovered pretty late in the naming process since he is a New World inhabitant. (He summers on the East Coast of North America and winters in South America.) Back in the 1700’s, one of his ancestors who had been living in New York or Connecticut was killed by a young Englishman named Ashton Blackburne, then stuffed and shipped to Ashton’s sister in England. Anna Blackburne, a self-taught naturalist, spent her days collecting and classifying insects from England and birds from her brother in New England. Anna was relatively unknown, but she shared her findings with the well-known naturalists of the day who would then publish her discoveries. (Grrr… another example of a woman working behind the scenes.) The Swedish botanist, Carl Linnaeus, honored Anna by naming this colorful bird after her. Ironically, the female Blackburnian Warbler is a “washed-out version of the male.”

Rotten Designs

Rotting wood is my new passion. Where I walk in Westwoods has a greater share of dead trees than most other forest areas. It used to be dense with Hemlocks until they were killed by the wooly adelgid infestation. Now the forest floor is covered with downed trees and branches. It is truly a mess. I used to think it was ugly. But I started to see the standing stumps and logs as carved sculptures. Then I looked closely at some fallen logs and was mesmerized by the patterns. Some are made by fungi, some by boring beetles, and some by weather. Enjoy this gallery of rotting wood.

Paper Wasps in Winter

Nest of Paper Wasps
Wasp hotel with 225 living units.

I found this amazing structure on the ground near my house. Its former inhabitants — paper wasps – had probably been living right under my nose all year in this attached unit under my porch. I counted 225 hexagonal rooms – a major hotel! The hotel is shaped like an umbrella (we are seeing the underside in the picture) with a roof constructed with layers of homemade paper — organic matter that the wasps harvested, then mixed with their saliva, and formed into sheets.

Now, with temperatures in the teens, the wasps are either dead or hiding in crevises or inside my house. Unless there was an unusually plentiful food supply and easy access to warm quarters, the worker wasps would have sacrificed food and shelter (in other words, their lives) for their Queen. When the Queen reemerges, she will discover that her nest is gone. But, if she liked the location (and I hope she did), her offspring will build in the same place. So I’ll be looking out for another creative addition to our house in the spring of 2022.

Rocks Stars

These rocks seem to be soaring through space. Their meteoric rise to fame happened overnight. Before the freeze, they were just ordinary pebbles indistinguishable from their neighbors. But while we humans slept, these particular rocks, lying in a slow-moving area of a stream bed, were cast in a dramatic production of ice crystals.

An American Toad Experience

American Toad
Illustration of Toad Anatomy

I’ve seen plenty of toads as they were hopping away to escape my foot. But this toad, trapped between me and my dog, froze in its tracks. As I bent down to take its picture, I experienced a mixture of shock, disgust, and concern, for it appeared to have holes in its back, each filled with brown seeds.

That evening, I settled into my comfy armchair to read about toad anatomy. The holes in its back are called dorsal blotches or spots and the “seeds” are actually warts. Toad identification includes counting how many warts are in the spots. One or two per spot and it’s an American Toad. More warts per blotch, then it might be a Fowler Toad. Interbreeding is common between the two species, which probably explains why our toad has one or two warts in most of its spots, but one spot appears to be crowded with maybe five warts. So this is probably not a purebred American Toad (a Yankee?) but one with a bit of Fowler in its past.

The two oval sacs behind the eyes are the parotoid glands that secrete bufotoxin, a substance that ranges from mildly irritating to poisonous, depending on the species. The American Toad’s protective secretion is on the mild side, a fact that for most people is reassurance that their curious dog may vomit, but probably won’t die. But for others, it’s a matter of self-interest, for toad-licking is making a comeback!

Toad-licking is a real thing, but most toad abusers these days milk the glands and then dehydrate the bufotoxin so that it forms a powder that is suitable for smoking. Apparently, the most satisfying hallucinogen comes from the Colorado River Toad. Symptoms of ingesting toad serum include unresponsiveness or having convulsions or vomiting. Yet so many toad users report having a religious experience (“being one with God”) as well as enduring positive feelings that Johns Hopkins University is researching the use of toad venom to treat depression.

Like all good experiences, getting high from smoking toad serum has been overdone. Advice from an addiction center website: If you or someone you know is abusing Toad Venom, there is help available.

Yellow!

Yellow Stagshorn
Small Stagshorn fungus reaches a height of only four inches and is tapered on the ends of the spires.

This bright yellow fungus (calocera cornea if you care to know), commonly known as Small Stagshorn, is a petite relative of Yellow Stagshorn. It grows on rotting stumps and buried roots, quickening their decay. In a forest of greens, browns, and greys, its yellow spires scream out for attention. “Look at me!” When I first spotted a clump in a muddy bog, it seemed so audacious that I was immediately suspicious of its motives and didn’t dare to even touch it. Reading about it later, I learned that Stagshorn is in fact edible in the sense of being “non-toxic,” although it is both bland and gooey so that it is generally used only as a garnish. Even if it were described as being delicious, I would never dare to actually ingest it in case I was wrong in the classification, although I did go back to touch it. Who could resist when the various adjectives used to describe it read like an entry in Roget’s Thesaurus –- waxy, slimy, sticky, gelatinous, jelly-like, and viscous. Personally, I found it to be slightly icky.

Yellow Stagshorn growing on a stump

The Unbearable Lightness of Being a Bird

Black and White Warbler
A Dead Black and White Warbler
Detail of feathers of a Black and White Warb;er

I’ve been spending these late April mornings moving pachysandra to fill in worn spots where my dog lays after walks. I was about to drive my shovel into the earth, when I noticed –-and swerved just in time to avoid impaling –-a bird. I have handled dead birds before and every time, I am pained by their weight. The sensation of their little bodies in my hand is paradoxically weighty as if I can suddenly measure in tenths of an ounce.

Unsolicited dead birds remind me to take time out to appreciate nature. To memorialize them, I place them on my Epson V700 to scan them in at some ridiculously high resolution so that I can view an enlarged image of their feather patterns up close.

Normally, I’m not interested in their identity, just in their birdness. But thanks to my new bird identification app, Merlin, I learned that my guy is a Black and White Warbler (a guy because he has black cheeks). He comes from a family of tree foragers, good at picking out insects from the grooves of bark. But unlike some of his cousins such as the Brown Creeper, who starts at the bottom and forages upward, or the Nuthatch, who hops downward, my bird is quite talented and hops every which way.

Ugh, I’m getting attached, but it’s time for the final step in my bird appreciation routine. To pick up his floppy, rotund body and hurl it into the woods.

Eastern Skunk Cabbage

Symplocarpus Foetidus: smelly fruits


Skunk Cabbage Spathe

It’s March and there are hundreds of baby skunk cabbages in the creek near my house. I went six inches deep in the mud with my waterproof boots to visit them up close. The “baby” is actually a reddish purple or mottled yellow shell (the spathe) that holds a cluster of flowers attached to a spike (the spadix). The spathes are miraculous little space heaters that keep the prenatal buds between 60° and 70° and as a side-effect, can melt snow or ice. This thermogenesis is accomplished by metabolizing starch that had been stored in the roots over the winter. A few weeks ago, several of these pointy gnomes were peeking through the snow.

Next to the purple shell, there’s what appears to be a second spathe that’s green, though it’s actually a curl of green leaves. These will unfurl to be a large stinky adult skunk cabbage. The plants have evolved to smell like dead animals to attract early garbage-loving pollinators such as some flies and beetles while repelling early forest carnivores such as deer and rabbit. The fetid odor is actually a good thing for us humans, since the leafy greens look good enough to eat, but would in fact make a poisonous salad.

Mottled Yellow Skunk Cabbage

Sutures on a White-tailed Deer Skull

White-tailed deer skull

I found this white-tailed deer skull along with other parts of the carcass while exploring off-trail in an area of the woods that was not easy to navigate. In this relative wilderness, the deer had probably been taken down by a coyote or died a natural death.

Although the skull is damaged, the zig-zag markings on the top are beautifully intact. Similar to spalting, which is a network of lines marking fungal boundaries in wood, these cranial sutures mark boundaries between bones.

 

When the deer was young, the sutures were fibrous areas that allowed the bones to expand. They also indicate stresses placed on the skull by chewing. In male deer, the largest sutures (the coronal pair that meander horizontally across the top of the skull) indicate the presence of antlers. The smaller wiggly line in the back of the skull is the lambdoid, and the vertical one extended towards the mouth is the sagittal suture.

Sutures on Deer Skull

Revelation in a Piece of Wood

Slice of Spalted Wood
Spalted wood from a sawn tree.

This sliver of maple wood cut from a tree that fell over the Red Rectangle Trail looks like a map of some unfamiliar world so I was surprised to learn that it is exactly that. The squiggly black lines superimposed on the circular growth rings look like meandering rivers. Known as zone lines, they mark territorial boundaries between species of fungi competing for the dead wood. I felt a little sad to learn about this self-serving behavior of micro-organisms. The sadness made me realize that, even though I swear I never thought about it, I had assumed that fungi would share.

For more information on this process known as spalting, visit the Woodland Trust website or meet “Dr. Spalting” herself.