1153. Larus glaucescens

1153. Glaucous-winged Gull.
LARUS GLAUCESCENS.
Larus glaucescens, Naum. Vog. Deutschl. x. p. 351 (1840) ; Seebohm; B. Jap. Emp. p. 290 ; Saunders, Cat. B. Br. Mus. xxv. p. 284 ; Tacz. F. O. Sib. O. p. 1019 ; Ridgway, p. 27.
Male ad. (Alaska). Differs from L. glaucus in wing pattern, and in naving the mantle blue-grey ; scapulars, secondaries, and primaries broadly tipped with white, the colour of the quills being two shades of ashy grey ; 1st quill broadly terminated with white, the 2nd with a white sub-terminal spot on each web, the 3rd whitish at the apex of the wedge of the grey inner web, the 4th pale grey on the greater part of both webs, the darker colour being as a distinct bar, the 5th with a smaller dark bar surmounted by white, the 6th similar, but the bar reduced to a spot on the outer web, the rest grey at the base and tipped with white ; bill yellow, red at the angle of the. lower mandible ; legs and feet light flesh-colour ; iris clear grey. Culmen 2.7, wing 17.0, tail 7.9, tarsus 2.6 inch.
Hab. The coasts of the North Pacific and Bering’s Sea ; Kamchatka ; the Aleutian and Commander Islands ; in winter south to Japan and California.
In habits it resembles L. glaucus. It breeds abundantly on Bering and Copper Islands, frequently on isolated rocks and small islands, or on the ledges of rugged cliffs overhanging the sea, the nest being a depression, lined with dry grass, and early in July, 2 to 3 eggs are deposited, which resemble those of I. glaucus, but are somewhat smaller, greener, and more boldly spotted.

BookTitle: 
A Manual Of Palaearctic Birds
Reference: 
Dresser, Henry Eeles. A Manual of Palaearctic Birds. Vol. 2. 1903.
Title in Book: 
1153. Larus glaucescens
Book Author: 
H. E. Dresser
CatNo: 
1153
Year: 
1903
Page No: 
838
Common name: 
Glaucous Winged Gull
M_ID: 
4541
M_CN: 
Glaucous-winged Gull
M_SN: 
Larus glaucescens
Volume: 
Vol. 2
id: 
10263

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