WEDGE-TAILED GULL 407 
barred with brown and dull white; tail-feathers, white 
banded near the tips with blackish-brown. 
Beak. Blackish, with a yellowish tip. 
Fret. Pale brownish-grey. 
IrimdEs. Dark brown. 
AVERAGE MEASUREMENTS. 
TOTAL LENGTH ... Coe scp is) agaly 
WING “e ae Sie fo OSoMe 
BEAK eee ~~ bh Gee Peo aia, 
TARSO-METATARSUS aes a6. lem 
teres evox eS in 
WEDGE-TAILED GULL. Lhodostethia rosea (Macgillivray). 
Coloured Figwres.—Gould, ‘ Birds of Great Britain,’ vol. y, pl. 
63; Dresser, ‘ Birds of Europe,’ vol. viii, pl. 594; Lilford, 
‘Coloured Figures,’ vol. vi, pls. 15, 16. 
In December, 1846, or February, 1847, a specimen of 
this Arctic Gull was said to have been shot near Tadcaster, 
in Yorkshire. It is now preserved in the Leeds Museum 
(Saunders). This appears to be the only British-taken 
specimen as yet on record. 
DESCRIPTIVE CHARACTERS. 
PLUMAGE. Adult male nuptial.—Head and neck, white, 
with a few black feathers near the eye ; narrow black neck- 
collar; breast and abdomen, white, tinged in life with a 
delicate pink; back and wings, pale ‘french’ grey; outer 
web of first primary, black almost to the tips; the other 
prunaries, ‘french’ grey ; secondaries, light greyish, tipped 
with rosy-white ; tail, which 1s wedge-shaped, and its upper 
coverts, delicate rosy-white. 
Adult female nuptial.—Similar to the male plumage. 
Adult winter, male and female-—Similar to the nuptial 
plumage, except that the black neck-collar is absent, and 
the rosy tints are more faintly suffused. 
Immature, male and female.—Top of head and neck- 
collar, greyish ; wing-coverts, inner secondaries, and rump, 
