It is evident that this class of animals are generally destined to live a portion of their time in the air, and to perch upon trees. The scientific naturalist is struck with admiring wonder when he comes to examine the adaptation of these creatures to their modes of life. The ingenuity of contrivance, in giving strength, yet lightness, to the frame of the bird, is perhaps unequalled in the whole compass of animated nature. Nor are the feathered races less interesting to common observers. They are associated in the mind with all that is romantic and beautiful in scenery. Their mysterious emigrations, at stated seasons, from land to land; their foresight of calm and storm; their melody and beauty; and that wonderful construction by which some of them are fitted for land and air, and others for swimming,—these contribute to render them an unfailing source of interest to mankind at large.
The birds are divided into six orders, under each of which we shall notice a few of the more prominent species.
ORDER I.
ACCIPITRES,
BIRDS OF PREY.
VULTURES.
The Condor.—This is not only the largest of vultures, but the largest known bird of flight. It is common in the regions of the Andes, in South America, and is occasionally found as far north as the Rocky Mountains of the United States. Nuttall gives us the following characteristic sketch of this fierce and formidable bird:—
"A pair of condors will attack a cougar, a deer, or a llama: pursuing it for a long time, they will occasionally wound it with their bills and claws, until the unfortunate animal, stifled, and overcome with fatigue, extends its tongue and groans; on which occasion the condor seizes this member, being a very tender and favorite morsel, and tears out the eyes of its prey, which at length falls to the earth and expires. The greedy bird then gorges himself, and rests, in stupidity and almost gluttonous inebriation, upon the highest neighboring rocks. He can then be easily taken, as he is so gorged that he cannot fly."