The linnets are the easier suited. A black last year's sparrow's nest put in the box under the eaves in place of a new white cotton one is accepted, with no questions asked. We have substituted nest for nest many times, and find there is no choice. Also, we have substituted young birds of the same species, and each and all are adopted. Sometimes we find an orphan birdling, which is sure to be cared for provided it be placed in the nest of any kind, motherly bird. Of course, in thus trading or causing to be adopted young birds, we are careful not to give a seed-eater to a meat-eater, and vice versa. An insect fare would hardly agree with nurslings accustomed to regurgitated food, like the finches and hummers. Once we rescued a tiny young hummer from a "wicked boy," who had come to the treasure by theft. The little thing was nearly dead with cold and hunger. But we knew exactly where to find a dear, motherly old soul in the person of a humming-bird, who had just completed her nest. We placed the orphan in the frail cradle, so weak it could scarcely open its beak. The old bird came at once, cuddled and coddled the baby as only a humming-bird can do, with her small, soft breast. In ten minutes the wee one was having its supper, and it was raised by the foster-parent. There seems to be something in the breast of mother birds at the nesting-season akin to human instinct. All these interesting studies go on with us at our door. No cats are allowed within certain bounds. And any home may be the same if the dwellers will take the trouble. An ideal corner in a school-yard would be one in which birds were taught confidence and dependence. Birds are subject to cultivation and encouragement. If one is just making a start toward this, quick movement in the shrubbery should not be indulged in. Loud, sudden noises and throwing balls or other things, at the commencing of the nest season, frighten the birds. One must learn to stand stock-still and listen and look. Birds notice movement more than sound. Sidewise motions disturb, where straight, go-ahead methods are not noticed.