"Last among the winter residents I can merely mention the red-tailed hawk, so named from the deep rufus color of its tail feathers. It is a heavy, robust bird, and while it usually feeds on mice, moles, and shrews that abound in meadows, its depredations on farmyards are not infrequent. It is widely distributed throughout the continent, and abundant here. It is a powerful bird, and can compass long distances with a strong, steady flight, often moving with no apparent motion of the wings. It rarely seizes its prey while flying, like the goshawk, but with its keen vision will inspect the immediate vicinity from the branch of a tree, and thence dart upon it. It is not particular as to its food. Insects, birds, and reptiles are alike welcome game, and in summer it may be seen carrying a writhing snake through the air. While flying it utters a very harsh, peculiar, and disagreeable scream, and by some is called the squealing hawk. The social habits of this bird are in appropriate concord with its voice. After rearing their young the sexes separate, and are jealous of and hostile to each other. It may easily happen that if the wife of the spring captures any prey, her former mate will struggle fiercely for its possession, and the screaming clamor of the fight will rival a conjugal quarrel in the Bowery. In this respect they form an unpleasing contrast with the red-shouldered hawks, among whom marriage is permanent, and maintained with lover-like attentions. Thus it would appear that there are contrasts of character even in the hawk world; and when you remember that we have fifteen other varieties of this bird, besides the nine I have mentioned, you may think that nature, like society, is rather prodigal in hawks. As civilization advances, however, innocence stands a better chance. At least this is true of the harmless song-birds.