1143. Larus crassirostris

1143. Black-tailed Gull.
Laras crassirostris, Vieill. Nouv. Dict. xxi. p. 508 (1818) ; David and Oust. Ois. Chine, p. 519 ; Seebohm, B. Jap. Emp. p. 293 ; Tacz. F. O. Sib. O. p. 1037 ; Saunders, Cat B. Br. Mus. xxv. p. 227 ; L. melanurus, Temm. Pl. Col. livr. 77, pl. 459 (1828) ; id and Schlegel, Faun. Jap. Aves, p. 132, Tab. 88.
Umineko, Jap.
Male ad. (Japan). Head, neck, under parts and upper tail-coverts white ; mantle slate-grey ; tail white, the base pale grey, all except the outermost feather on each side crossed by a broad sub terminal black band ; the five outer primaries blackish with white tips, increasing in size inwards ; scapulars and secondaries edged with white ; under wing-coverts white ; bill greenish yellow, becoming orange at the tip, and crossed by a black band ; legs and feet fleshy brownish ; iris pale straw-yellow, the edge of the eyelids vermilion. Culmen 2.5, wing 15.5, tail 6.0, tarsus 2.3 inch. In winter similar, but with a little greyish brown on the head and nape.
Hab. The Ussuri country. Eastern Siberia, the coasts of the Sea of Japan, and Japan, the Island of Saghalien, and China south to about 22o N. lat.
Is easily recognizable from L. canus (which it somewhat resembles) by the broad black band on the tail ; it frequents the sea coast, large rivers and lakes, and is one of the commonest species in Japan and North China. I find but little on record respecting its nidification, excepting that it nests on rocks, depositing from the middle of May to the early part of June 3 eggs, which vary in ground-colour from ochreous grey to pale olivaceous, and are spotted, blotched, and scratched with blackish brown or yellowish brown, in size measuring about 2.50 by 1.75.

A Manual Of Palaearctic Birds
Dresser, Henry Eeles. A Manual of Palaearctic Birds. Vol. 2. 1903.
Title in Book: 
1143. Larus crassirostris
Book Author: 
H. E. Dresser
Page No: 
Common name: 
Black Tailed Gull
Black-tailed Gull
Larus crassirostris
Vol. 2

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