478. 1. Uria antiqua, Gmel. Black-throated Guillemot.
Plate CCCCII. Fig. 1. Adult. Fig. 2. Young.
Bill yellow, shorter than the head, rather stout, compressed toward the end, the upper outline arched; feet yellow; head and upper part of neck black, excepting a band of elongated linear feathers beginning over the eye and extending down the hind part of the neck, and a broad band of white commencing behind the ear and curving forwards, to join the white, which is the general colour of the lower parts, with the exception of the flanks, which are black; back, wings, and tail greyish-black. Young, when fledged, with the bill black, the feet dusky; the upper parts blackish-grey, each feather black in the centre, the lower parts greyish-yellow, transversely barred with dusky; the tail broadly tipped with white.
Adult, 101/2, wings, 59/12.
North-west coast of America. Abundant.
Alca antiqua, Gmel. Syst. Nat. v. i. p. 551.
Black-throated Guillemot, Uria antiqua, Aud. Orn. Biog. v. v. p. 100.
479. 2. Uria occidentalis, Bonap. Horned-billed Guillemot.
Plate CCCCII. Fig. 5. Adult.
Bill orange-yellow, shorter than the head, stout, straight, with the dorsal line arched, and an oblong compressed knob on the ridge between the nostrils, which are linear, and placed in the bare skin; feet greyish-yellow; upper parts black, as are the cheeks, the upper part and sides of the fore neck; the lower parts white; two decurved bands of white slender feathers on each side of the head, one commencing over the eye, the other at the angle of the mouth; tail very short, even, of sixteen feathers.
Adult, 151/2, wing, 610/12.