May Eighth
The fronds of the sensitive fern resemble somewhat the leaves of the oak-tree, and in some localities it is called the oak-leaf fern. It is found in damp, shady spots, and is one of the common ferns of New England. The delicate, light green leaves wither soon after being picked, and it is the first of the ferns to fall under the touch of Jack Frost.
May Ninth
A low, squeaking sound made with the lips is understood by some birds as a signal of distress. Orioles, wrens, catbirds, cuckoos, warblers, vireos, robins, and many other birds may be called close to one, particularly if the intruder is near their nest. You should learn this trick, for often it is possible to coax a shy bird from a thicket in order that it may be identified.
Notes
May Tenth
In summer the most common of our Northern wood warblers, yet one of the most difficult to see, on account of its liking for the tops of the tall trees, is the black-throated green warbler. Its song is a cheerful, interrogative, "Will you co-ome, will you co-ome, will you?" (Wright), or "a droning zee, zee, ze-ee, zee." (Chapman and Reed.)
May Eleventh
Why is it that the usually frisky and noisy red squirrels have become so quiet? If you could look into the nest of dried grass and bark, in a hollow tree-trunk, or a deserted woodpecker's nest, you would understand their reason for not wishing to make their presence known. Keep close watch of the opening, and some day you will see several little heads appear, and in a few days a family of squirrels will be scrambling about the trees. Pretty and graceful as these squirrels are, they do great damage by destroying the eggs and young of birds.
May Twelfth
Wintering south of Central America, the veery, or Wilson's thrush, should now appear in the vicinity of Albany. "A weird rhythm" is the expression sometimes used to describe the song of this bird. Weird it certainly is, and beautiful, as well, coming from the depths of some sombre wood, growing more sombre still as the night falls.
Notes
May Thirteenth
The wood thrush is much larger than the veery, and easily distinguished from the six other species of true thrushes of North America, by the large black spots on the breast, and the bright cinnamon head. As you listened for the veery, you probably heard the wood thrush's pure liquid song--so far away that you could not catch the low after-notes. To me, the flute-like quality of the wood thrush's song makes it the most enchanting of all bird music.
May Fourteenth
At intervals during the day, a distinct booming sound is heard coming from the forests. At first the beats are slow and measured, but as they are repeated the time quickens, until they finally blend, and then gradually die away. This is the "drumming" of the ruffed grouse, produced by the cock bird beating with his wings against the sides of his body. At this time of the year it is his love song, but you can hear it at other seasons as well.
May Fifteenth
Visit again the locality where a week ago you heard so many toads, and what do you find? Long strings of gelatine-covered specks strewn on the bottom of the pond. These black spots are the eggs of the toad, and the gelatine is put around them to protect them and to furnish the first meal for the young polywogs.
Notes
May Sixteenth
To find a hummingbird's nest, snugly saddled on a branch of a maple or apple tree, ten feet or more above the ground, requires patience and keen eyesight. Unless you have seen one, you almost surely would mistake it for a bunch of lichens. It is a neat little structure of downy material covered with bits of lichens, fastened with spider and caterpillar webs.
May Seventeenth
It would interest you to visit a zoological park to study the growing antlers of a deer or an elk. A pair of black antlers, "in the velvet," as the hunters call it, have taken the place of the bony-colored ones shed in March. Just now they are somewhat flexible, and feverishly hot from the steady flow of blood that feeds them. If they are injured at this time, the owner might bleed to death.
May Eighteenth
"Caw, caw, caw, ka, ka, ka, ka-k-k-k-r-r-r-r." It sounds as though a crow were being strangled. Looking in that direction you see a large black bird fly from the woods to a meadow. After filling her beak with food she returns. No sooner is she within sight of the young crows, than they flap their wings, open their mouths and caw until the stifled, guttural sounds tell you that the morsel is being swallowed.
Notes
May Nineteenth
When perched or flying the bobolink sends forth his jolly song in such a flood of ecstasy that you would scarcely be surprised to see him suddenly explode and vanish in a cloud of feathers. Would that we could overlook the damage he does to Southern rice crops.
Young Folks' Nature Field Book · The Wunder Library — complete classics, free to read, with narration.