A pamphlet issued by the Department of Agriculture of the United States says that the cuckoo, which is common in all the Eastern States, has been conclusively shown to be much given to eating caterpillars, and, unlike most birds, does not reject those that are covered with hair. In fact, cuckoos eat so many hairy caterpillars that the hairs pierce the inner lining of their stomach and remain there, so that when the stomach is opened and turned inside out, it appears to be lined with a thin coating of hair. This bird also eats beetles, grasshoppers, sawflies, and spiders. It turns out from the investigations of the department that the suspicion with which all farmers look upon woodpeckers is undeserved by that bird. These birds rarely leave an important mark upon a healthy tree, but when a tree is affected by wood-boring larvæ the insects are accurately located, dislodged, and devoured. In case the holes from which the borers are taken are afterward occupied and enlarged by colonies of ants, these ants are drawn out and eaten. Woodpeckers are great conservators of forests, and to them more than to any other agency is due the preservation of timber from hordes of destructive insects.
The department defends the much-abused crow and states that he is not by any means the enemy of the farmer, in which rôle he is generally represented. The pamphlet shows that he is known to eat frogs, toads, salamanders, and some small snakes, and that he devours May beetles, June bugs, grasshoppers, and a large variety of other destructive insects. It is admitted that he does some damage to sprouting corn, but this can be prevented by tarring the seed, which not only saves the corn, but forces the crow to turn his attention to insects.
Insects injurious to vegetation.—Essays may be written describing some of the insects injurious to fruit trees; also the birds that feed largely upon these insects—the warblers, thrushes, orioles, wrens, woodpeckers, vireos, and others. Tell, if possible, from your own observation, of their curious, but effective, ways of finding their food. Describe how the birds inspect the trees, limb by limb and bud by bud, in their eager search for the eggs, larvæ, and mature forms of insects. Note, especially, the oriole as he runs spirally round a branch to the very tip, then back to the trunk, treating branch after branch in the same way, till the whole tree has been thoroughly searched, almost every bud having been in the focus of those bright eyes. It is hard to describe which is the more beautiful—their brilliant, flaming colors or their bugle-like bursts of music. Is the woodpecker's drumming, and apparent listening with the side of his head turned to the tree, all for fun, and nothing for reward?
Birds that feed upon the potato beetle.—The grosbeaks and the tanagers. Describe these. Why are these and other brightly colored birds so shy? What has been the effect of the extensive killing of them for ornament, and the equally cruel practice of securing their young to be kept in cages? Note how much more attractive our fields and gardens would be if these beautiful beings were common in them, and by their quaint ways were "teaching us manners."
Personations of birds.—Ask the children to write "personations" of birds, as if the writer were the bird. Give them the following directions: Write in the first person. Describe yourself as accurately as you are able, without telling your name. Tell of your habits and manner of life, your summer and winter homes, your home cares—your nest building, your parental joys and anxieties, the enemies you have to avoid. Mention at some length the trouble you take to give your little ones a good start in life, and to enable them to earn their own living. Describe your songs, and try to indicate why they differ, and what you mean by each one. Try to present a somewhat complete picture of the bird and its life, from the bird's point of view. At the close of your personation the hearers may vote upon the name of the bird presented.
A family of birds may also be described, as if they were persons,—and are they not? A very fine model of this kind of work is "Our New Neighbors at Ponkapog," by T. B. Aldrich.
Have essays written upon the following subjects:—
Are there birds that do not sing?
What is the attitude of other birds to the owl?
Is any country too cold, or any too warm, for birds?