1192. Uria grylle

Uria grylle, Linn. Syst. Nat. i. p. 220 (1766) ; (Naum.), xii. p. 461, Taf, 330 ; Hewitson, ii. p. 462, pl. cxxvi. ; Gould, B. of E. v. pl. 399 ; id. B. of Gt. Brit. v. pl. 49 ; Dresser, viii. p. 581, pl. 623 ; Ogilvie Grant, Cat. B. Br. Mus. xxvi. p. 580 ; (Ridgway), p. 16 ; Saunders, p. 703 ; Lilford, vi. p. 91, pl. 41.
Guillemot grylle, French : Gryll-Teiste, German ; Theista, Icel. ; Almindelig Tciste, Dan. ; Teiste, Per-drikker, Norweg. ; Tobis-grisla, Swed. ; Riskila, Finn.
Male ad. (Greenland). General plumage deep black, the upper parts with a greenish gloss, the under parts tinged with brownish ; central and larger wing-coverts white, but black on the concealed bases of the feathers, forming a large white alar patch ; bill black ; legs and feet rich vermilion or coral-red ; iris dark brown. Culmen 1.4, wing 6.4, tail 2.2, tarsus 1.15 inch. Sexes alike. In winter the crown is white marked with black ; back and rump black, the feathers margined with white, the latter nearly all white ; wings and tail as in summer ; rest of plumage white.
Hab. North Atlantic east to the White Sea ; the Baltic and coasts of Scandinavia, Germany, and Northern France ; breeds on the coasts of Britain ; on the American coasts, from S. Greenland and Labrador, south to New Jersey in winter.
Like A. troile it is essentially a sea bird, usually found far out at sea, except during the breeding season, but it lives in pairs and does not breed in societies. It swims with ease, dives like a flash, and its flight is swift and direct. Its food consists of crustacea and small fish, which it obtains chiefly by diving. Unlike A. troile it does not deposit its eggs on the bare ledges of cliffs, but in a cleft in the rock, or under a boulder, sometimes near the water’s edge, and at others at a considerable altitude, and makes no nest. Its eggs, 2 to 3 in number, are usually deposited late in May or in June, and are white or greenish white with purplish grey shell-markings, and blackish brown surface spots and blotches, some being but scantily, others very richly marked. In size they measure about 2.41 by 1.62.

A Manual Of Palaearctic Birds
Dresser, Henry Eeles. A Manual of Palaearctic Birds. Vol. 2. 1903.
Title in Book: 
1192. Uria grylle
Book Author: 
H. E. Dresser
Page No: 
Common name: 
Black Guillemot
Black Guillemot
Cepphus grylle
Vol. 2

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