When the first warm rays hatch the winged insects, the tragedy of the woods begins. A little cream-colored butterfly just out of its winter garb is on the wing, floating gracefully in the air among the leafless trees. The titmouse, with his bright eye ever on the alert, spies the insect, makes a sprightly dart, and seldom misses his mark. Then he perches on a limb with the fly and, like a bird of prey, takes hold with bill and feet and tears his victim apart, and as the remnants of the little wings float slowly to the ground, he feeds on the body.
The indigo bunting (Passerina cyanea) with its exquisite lay makes its abode very attractive to bird fanciers. In the mating season he can be seen perched on the topmost twig of one of the graceful drooping limbs of the elm bush, a little blue ball of feathers, throat expanded, pouring forth sweet music. If an instrument could be invented to record and reproduce the melody as he delivers it in the stillness of the morning when the little songster is at his best, it would become a very popular air. The indigo is frequently kept in captivity, but loses all the sweetness of song and the little male soon drops his beautiful livery and dons a distasteful shabby color, lacking even the somber luster of the female. During the period of mating, the cock-bird can be trapped very easily by using a trap cage with a bird in the lower compartment. As a boy, I have placed a trap cage on my head, walked under the tree where the wild bird was singing, with my mouth made a few kissing sounds, whereupon the bird would fly down into the cage and try to get through the wires to the captive. If some wheat grains were placed on the “paddle,” the wild bird would invariably light on it first, and picking up the grains would spring the trap and be caught while the cage was on my head.
Indigo Bunting’s Nest with Cowbird’s Egg
The Young Interloper
(He sits on one and crowds the other out.)
In constructing their nest they usually select a dense thicket and frequently build near the ground, where they deposit four or five bluish-white eggs not much bigger than a large pea. The cowbird (Molothrus ater), which is a sort of parasite, does not build a nest of its own, but lays its eggs in the nest of some other bird. In this respect it shows its wonderful instinct by selecting a smaller bird as foster-mother for its offspring. By experience they have been taught that the larger birds invariably dispose of the eggs by removing them from the nest. It frequently selects the bunting’s nest in which to deposit its brown spotted eggs, which are much larger. The cowbird, being of a larger species, grows much faster, and before long the foundling fills the little nest, forcing the rightful owners out of home and board. On one occasion I visited a nest and found it almost upset, with the “big cow” filling the whole nest. On the upper edge perched one little bunting, almost featherless, shivering in the cold. From underneath the “parasite” could be seen the head of the other, panting for breath and nearly stifled. We removed the cowbird, straightened up the nest, replaced the rightful owners of the house, and perched the cowbird nearby on a bush. We then went off a short distance and watched developments, and to our surprise the little male bunting fed the cowbird first. It was strange to see the youngster, as large as his foster parent, open his mouth so wide you could imagine he was getting ready to swallow the old bird,—indeed he looked as though he could, rapacious pirate offspring that he was. On telling the story to a friend, he remarked, “Well, how do you account for the foolish old man neglecting his own offspring and feeding the cowbird first?” I cannot answer that, unless the old fellow was proud of his big son.