FAMILY XXX. PAVONINÆ. PAVONINE BIRDS.

Bill rather short, moderately stout, broader than high at the base,

somewhat compressed toward the end; upper mandible with its extremity

arched, thin-edged, and obtuse; lower narrowed and blunt. Head

partially denuded, rather small, oblong; neck long; body very large.

Feet stout, rather long; tarsus anteriorly scutellate; hind toe

elevated, anterior toes webbed at the base. Claws rather denuded,

obtuse. Plumage full, the feathers with a very large plumule and short

tube; those of the hind part of the back much developed. Wings of

moderate length, convex, rounded. Tail very large, of more than twelve

feathers. Tongue triangular, pointed; œsophagus dilated into an

enormous crop; stomach a very powerful gizzard, roundish, or

transversely elliptical, with very large muscles, and dense

epithelium, having two concave grinding surfaces; intestines long, and

rather wide; cœca very large, oblong, internally with elevated

reticulated ridges. Trachea cylindrical, without inferior laryngeal

muscles. Nest on the ground, rudely constructed. Eggs numerous. Young

covered with stiffish down.

GENUS I. MELEAGRIS, Linn. TURKEY.

Bill rather short, moderately stout, nearly straight, broader than

high at the base, somewhat compressed toward the end; upper mandible

with the dorsal line sloping and straight, toward the end decurved,

nasal membrane large and bare, ridge and sides rounded, edges sharp,

without notch, tip thin-edged, rounded; lower mandible with the angle

very long, and rather wide, the dorsal line slightly convex, the edges

sharp toward the end, decurved, the tip thin-edged and obtuse.

Nostrils linear, with a large horny operculum. Head bare, with a long

fleshy wattle at the base of the bill; neck bare, carunculate,

slightly feathered behind. Head small, oblong; neck rather long; body

very full. Feet large and strong; tarsus rather long, stout,

compressed, with two rows of scutella in front, and the same behind,

where there is also a conical slightly recurved spur, about a third

from the lower extremity; toes of moderate length, stout, scutella;

first small and elevated; lateral about equal, third much longer;

anterior webbed at the base. Claws of moderate length, stout, arched,

somewhat compressed, obtuse. Plumage compact, glossy; feathers very

broad and truncate; those of the rump elongated. Wings of moderate

length, concave, much rounded, with the fourth and fifth quills

longest; secondaries very long and broad. Tail rather long, very

broad, much rounded, of fourteen or eighteen very broad, broadly

rounded feathers. Œsophagus dilated into a very large crop; stomach

transversely elliptical, extremely muscular; intestines long and wide;

cœca very large, oblong.

A Synopsis of the Birds of North America · 第 267 / 469 题