DESCRIPTION AND TECHNICAL OBSERVATIONS.

Genus Querquedula. Stephens, Continuation of Shaw’s Zoology, XII. p.

142, (1824.)

Size small, bill rather long, straight, of nearly equal width throughout

its length, lamellæ well defined, wings moderate, pointed, with the

second quill usually longest, tail moderate, pointed, tarsi short, toes

fully webbed.

Querquedula cyanoptera. (Vieill.)

Anas cyanoptera. (Vieill.) Nouv. Dict., V. p. 104, (1816.)

Anas Rafflesii. King, Zool. Jour., IV. p. 97, (1828.)

“Pterocyanea cœruleata. (Licht.)” Gray, Gen. of Birds, II. p. 617,

(1845.)

Form. Small; wing rather long, with the second quill distinctly longest;

tertiaries and scapulars, long; two central tail-feathers pointed; bill,

rather long.

Dimensions. Total length (of skin), about 15 inches; wing, 8; tail, 3½

inches.

Colors. Male. Top of the head, chin and under tail-coverts, brownish

black; head, neck and entire under parts, deep purplish chestnut;

abdomen with a large spot of brownish black; back, scapulars, rump and

upper tail-coverts, brownish black, edged with dull chestnut; large

space on the shoulder and lesser wing-coverts, light sky-blue, succeeded

by a transverse band of white, speculum brilliant grass-green; a portion

of the two first scapulars blue, and all with a central stripe of pale

reddish chestnut. Bill dark; feet yellow.

Female. Shoulders blue as in the male, but no trace of the chestnut

color which prevails in the latter, that being replaced by a mottled

yellowish and brown, very similar to the females of several other

species of ducks. Head above brownish black.

Hab. Utah, California, Louisiana, Chili. Spec. in Mus. Acad. Philada.,

and Nat. Mus. Washington.

Obs. This very handsome species does not resemble any other species

likely to be confounded with it. With other species of Teals, it has

been placed in a distinct genus under the name _Pterocyanea_, Bonaparte,

in which, however, we fail to perceive sufficient characters to warrant

a separation from _Querquedula_.

SYNOPSIS

OF

NORTH AMERICAN BIRDS.

Illustrations of the Birds of California, Texas, Oregon, British and Russian America · 第 43 / 181 题