Читать книгу Audubon's Birds - John James Audubon - Страница 8

Mouth opening to beneath the centre of the eyes; bill much depressed, generally feeble, the horny part being small; upper mandible with the tip somewhat decurved. Nostrils, elliptical, prominent, marginate. Eyes extremely large. Aperture of ear elliptical, very large. Head of extreme breadth, depressed; body very slender. Feet very small; tarsus partially feathered, scaly; anterior toes webbed at the base; hind toe small, and versatile, all scutellate above; claw of third toe generally elongated, with the inner margin thin and pectinate.

Chuck-Willis-Widow

Caprimulgus carolinensis

Plate 52

Goatssuckers

Plumage very soft and blended. Wings very large, the second and third quills longest. Tail long, of ten feathers. Oesophagus rather wide, without crop; stomach very large, rounded, its muscular coat very thin, and composed of a single series of strong fasciculi; epithelium very hard; intestine short and wide. Trachea of nearly uniform width, without inferior laryngeal muscles. Nest on the ground, or in hollow trees. Eggs: generally two. Young covered with down. Very nearly allied in some respects to owls.

Whip-poor-will

Caprimulgus vociferus

Plate 82

Goatssuckers