The cow-blackbird, it is true, executes a certain guttural performance with its throat--though apparently emanating from a gastric source--which some ornithologists dignify by the name of "song." But it is safe to affirm that with this vocal resource alone to recommend him he or his kind would scarcely have been known to fame. The bird has yet another lay, however, which has made it notorious. Where is the nest of song-sparrow, or Maryland yellow-throat, or yellow warbler, or chippy, that is safe from the curse of the cow-bird's blighting visit? And yet how few of us have ever seen the bird to recognize it, unless perchance in the occasional flock clustering about the noses and feet of browsing kine and sheep, or perhaps perched upon their backs, the glossy black plumage of the males glistening with iridescent sheen in the sunshine. "Haow them blackbirds doos love the smell o' thet caow's breath!" said an old dame to me once in my boyhood. "I don't blame um: I like it myself." Whether it was this same authority who was responsible for my own similar early impression I do not know, but I do recall the surprise at my ultimate discovery that it was alone the quest of insects that attracted the birds. [Illustration] Upon the first arrival of the bird in the spring an attentive ear might detect its discordant voice, or the chuckling note of his mischievous spouse and accomplice, in the great bird medley; but later her crafty instinct would seem to warn her that silence is more to her interest in the pursuit of her wily mission. In June, when so many an ecstatic love-song among the birds has modulated from accents of ardent love to those of glad fruition, when the sonnet to his "mistress's eyebrow" is shortly to give place to the lullaby, then, like the "worm i' the bud," the cow-bird begins her parasitical career. How many thousands are the bird homes which are blasted in her "annual visit?" Stealthily and silently she pries among the thickets, following up the trail of warbler, sparrow, or thrush like a sleuth-hound. Yonder a tiny yellow-bird with a jet-black cheek flits hither with a wisp of dry grass in her beak, and disappears in the branches of a small tree close to my studio door. Like the shadow of fate the cow-bird suddenly appears, and has doubtless soon ferreted out her cradle. In a certain grassy bank not far from where I am writing, at the foot of an unsuspecting fern, a song-sparrow has built her nest. It lies in a hollow among the dried leaves and grass, and is so artfully merged with its immediate surroundings that even though you know its precise location it still eludes you. Only yesterday the last finishing-touches were made upon the nest, and this morning, as I might have anticipated from the excess of lisp and twitter of the mother bird, I find the first pretty brown-spotted egg.