COLYMBIN^. 
351 
Fuiidy along* all the rocky shores^ to Labrador^ and the highest lati- 
tudesj where considerable numbers even spend the winter, 
Uria Grylle, Bonap. Syn. p. 423. 
Uria Grylle, Black Guillemot, Nutt. Man. v. ii. p. 523. 
Black Guillemot, Uria Grylle, Aud. Orn. Biog. v. iii. p. 148 ; v. v. p. 627. 
483. 4. Uria Townsendii, Aud. Slender-billed Guillemot. 
s 
Plate CCCCXXX. Male and Female. 
Bill shorter than the head^ straight, slender, much compressed, acute, 
black ; feet yellow, claws black ; plumage very soft, close, blended, 
as in the other species ; wings small, very narrow, convex, falcate ; 
first quill longest ; secondaries incurved, obliquely rounded ; tail ex- 
tremely short, narrow, rounded, of twelve weak, rounded feathers. 
Upper parts brownish-black, the feathers of the back terminally mar- 
gined with light grey ; lower parts, cheeks, a transverse band on the 
nape, both eyelids, and a longitudinal band on each side, formed by 
some of the scapulars, white, some dusky streaks on the hind part of 
the sides, and the lower wing-coverts greyish-brown, some of ^them 
whitish. Young in autumn with the upper parts brownish-black, the 
feathers terminally margined with brown ; the occipital band merely 
indicated by some lighter feathers, and the scapular band brownish or 
chestnut-red ; lower parts of a curious mottled appearance, the fea- 
thers being brownish-grey at the end, but in the rest of their extent 
white, that colour appearing more or less on all the parts, and shew- 
ing a patch on the hind part of the sides. 
Adulty 10 ; wing Young, in autumn, 9j ; wing 5 
Abundant on the north-west coast of America, not far from the Co- 
lumbia River. 
Sleridei’-billed Guillemot, Uria Towusendi, Aud. Oini. Biog. v. v. p. 25.1. 
FAMILY XLV. COLYMBINaE. DIVERS AND 
GREBES, 
Bill of the length of the head, straight, rather stout, much 
compressed, pointed ; upper mandible with the dorsal line 
declinate, almost straight, or towards the end convex ; 
nasal groove rather long, feathered at the base. Nostrils 
basal, linear, direct, pervious. F eet stout, short, placed ex- 
tremely far behind; tarsus extremely compressed ; toes 
four, the first very small, and lobed ; the anterior united by 
