Mrs. Wright says these beautiful birds come like whirling leaves, half autumn yellow, half green of spring, the colors blending as in the outer petals of grass-grown daffodils. "Lovable, cheerful little spirits, darting about the trees, exclaiming at each morsel that they glean. Carrying sun glints on their backs wherever they go, they should make the gloomiest misanthrope feel the season's charm. They are so sociable and confiding, feeling as much at home in the trees by the house as in seclusion." The Yellow-bird builds in bushes, and the nest is a wonderful example of bird architecture. Milkweed, lint and its strips of fine bark are glued to twigs, and form the exterior of the nest. Its inner lining is made of the silky down on dandelion-balls woven together with horse-hair. In this dainty nest are laid four or five creamy white eggs, speckled with lilac tints and red-browns. The unwelcome egg of the Cow-bird is often found in the Yellow-bird's nest, but this Warbler builds a floor over the egg, repeating the expedient, if the Cow-bird continues her mischief, until sometimes a third story is erected. A pair of Summer Yellow-birds, we are told, had built their nest in a wild rose bush, and were rearing their family in a wilderness of fragrant blossoms whose tinted petals dropped upon the dainty nest, or settled upon the back of the brooding mother. The birds, however, did not stay "to have their pictures taken," but their nest may be seen among the roses. The Yellow Warbler's song is _Sweet-sweet-sweet-sweet-sweet-sweeter-sweeter_: seven times repeated. THE HERMIT THRUSH. In John Burroughs' "Birds and Poets" this master singer is described as the most melodious of our songsters, with the exception of the Wood Thrush, a bird whose strains, more than any other's, express harmony and serenity, and he complains that no merited poetic monument has yet been reared to it. But there can be no good reason for complaining of the absence of appreciative prose concerning the Hermit. One writer says: "How pleasantly his notes greet the ear amid the shrieking of the wind and the driving snow, or when in a calm and lucid interval of genial weather we hear him sing, if possible, more richly than before. His song reminds us of a coming season when the now dreary landscape will be clothed in a blooming garb befitting the vernal year--of the song of the Blackbird and Lark, and hosts of other tuneful throats which usher in that lovely season. Should you disturb him when singing he usually drops down and awaits your departure, though sometimes he merely retires to a neighboring tree and warbles as sweetly as before."