Bill shorter than the head, stout, nearly straight, subpentagonal at the base, compressed towards the end; upper mandible with the dorsal line convexo-declinate, the ridge convex, the sides sloping, the edges sharp and overlapping, the tip rather obtuse; nasal depression short and broad; nostrils basal, oblong; lower mandible with the angle long and wide, the dorsal line ascending, straight, the sides convex, toward the end ascending and flattened, the edges sharp and inclinate, the tip acute, with a sinus behind. Head large, ovate; neck short and thick; body full and compact. Feet short, rather stout; tibia bare for a very short space; tarsus very short, compressed, anteriorly covered with oblique scutella; hind toe wanting; anterior toes connected by entire webs, the third and fourth nearly equal. Claws rather small, moderately arched, compressed, rather acute. Plumage dense, glossy blended. Wings of moderate length, narrow, pointed; the first quill longest; secondaries rounded. Tail very short, slightly rounded, of twelve feathers.
477. 1. Mergulus Alle, Linn. Common Sea-Dove.
Plate CCCXXXIX. Male and Female.
Bill black, feet pale flesh-coloured, webs dusky, inside of mouth light yellow; head, upper part of neck, and all the upper surface glossy bluish-black; a small spot on the upper eyelid, another on the lower, several longitudinal streaks on the scapulars, and a bar along the tips of the secondary quills, together with the breast and abdomen, white; feathers on the sides under the wings with the inner webs dusky, lower wing-coverts blackish-grey. In winter, the throat, and lower parts of the cheeks white, sides and fore part of the neck white, the latter barred with blackish-grey; the other parts as in summer, but the black duller.
Male, 71/8, 141/4.
Rare and only during winter along the coast of the United States, from New York to Maine. More abundant along the coast of Nova Scotia, and far at sea. Breeds on the Arctic coasts.
Little Auk, Alca Alle, Wils. Amer. Orn. v. ix. p. 94.
Uria Alle, Bonap. Syn. p. 425.
Little Guillemot, Uria Alle, Swains. & Rich. F. Bor. Amer. v. ii. p. 479.
Little Auk or Sea Dove, Nutt. Man. v. ii. p. 531.
Little Guillemot, Uria Alle, Aud. Orn. Biog. v. iv. p. 304.
GENUS V. URIA, Lath. GUILLEMOT.
Bill generally shorter than the head, stout, compressed, tapering, acute; upper mandible with the dorsal line slightly arched; the ridge narrow, broader at the base, the sides sloping, the edges sharp and inflected, the tip a little decurved, with a slight notch; nasal groove broad, feathered; nostrils at its lower edge, subbasal, lateral, longitudinal, linear; lower mandible with the angle rather long, narrow, the dorsal line ascending and straight, the back very narrow, the sides nearly flat, the edges sharp and inflected, the tip acute. Head large, oblong; neck short and thick; body stout, elongated, rather depressed. Feet short, placed far behind; the greater part of the tibia concealed, its lower part bare; tarsus short, stout, compressed, anteriorly scutellate; toes three, of moderate length, middle toe longest, outer little shorter, scutellate, connected by entire webs. Claws small, slightly arched, compressed, rather acute. Plumage dense, very soft, blended. Wings rather short, narrow, acute; primary quills curved, tapering, the first and second longest; secondaries short, rounded. Tail very short, rounded, of twelve or more feathers.