386 LARIDA 
web, but chiefly pure white on the greater part of the inner 
web; tail and rump, white; fork of tail, short; throat, 
breast, and abdomen, white, often suffused with a delicate 
salmon-pink, which disappears soon after death. 
Adult female nuptial.—Similar to the male plumage. 
Adult winter, male and female.—Resembles the nuptial 
plumage, but the forehead, and the back of the neck are 
nearly white streaked with black. 
Immature, male and female.—Head barred with black 
and white; back, wing-coverts, and tail, marked with 
angular black lines. 
Beak. Black, except the tip which is pale yellow. 
FEET. Black. 
Iriwes. Blackish-brown. 
AVERAGE MEASUREMENTS. 
TOTAL LENGTH 5% a, bene 
WING sie e: ie sate ers Se 
BEAK Sas ae ae TAP). 4 
TARSO-METATARSUS ee soy) ele 
Eee , = 2 x i aaiar 
ROSEATE TERN. Sterna dougalli (Montagu). 
Coloured Figures.—Gould, ‘Birds of Great Britain,’ vol. v, pl. 
71; Dresser, ‘ Birds of Europe,’ vol. viii, pl. 581; Lilford, 
‘Coloured Figures,’ vol. vi, pl. 7; Booth, ‘ Rough Notes,’ 
vol. iii, pl. 33. 
To Dr. MacDougall, of Glasgow, is due the credit of 
having first identified this species on the Cumbrae Islands 
in the Firth of Clyde. Selby subsequently (about 1825) 
found ‘a numerous colony’ breeding on the Farne Islands, 
which are still visited, though in small numbers. Some 
years ago the Roseate Tern was more widely distributed as 
a spring-migrant; several former nesting-stations are now 
deserted, the birds having been driven away in many cases 
by persistent persecution. 
