on some Species of British Quadrupeds, Birds, and Fishes. 289 
Length, thirteen inches and a half; breadth, thirty-seven ; 
weight, eight ounces and three quarters. The bill one inch and 
a quarter in length to the feathers on the forehead; the base red 
orange, tip dusky black; irides dusky: a black spot at the ante- 
rior corner of the eye; another behind the ear; crown of the head 
mottled dusky and white; forehead, and all the under part, white ; 
back of the neck grayish-white: back, scapulars, greater coverts 
of the secondary quills, and some of the tipper series of the smaller 
ones near the shoulder, gray: several rows of the middle series <>t" 
coverts brown, edged with dull white; the two fust prime quills 
are white, margined on both webs with black; in the third the 
white increases on the outer margin, and the black at the tip ; 
and at the fifth feather the white part becomes pale gray, and the 
dark parts increase on the inner web, and become more dusky ; 
secondary quills dusky near their ends, margined with gray; ter- 
tials brown; the feathers of the spurious wing are dusky, slightly 
tipped with white: the ridge of the wing below that, and the three 
or four larger coverts adjoining, are wholly white; the rest of the 
greater coverts, impending the prime quills, more or less brown : 
the outer feather of the tail quite white, the next with two black, 
or rather dusky-brown, spots at the tip; the rest white, tipped 
with the same for rather more than half an inch, the ends slightly 
edged with dirty white: legs and feet dull orange-red. 
The next change brings it to the Brown-headed Cull. Lath. 
Syn. vi. p. 383. Larus erythropus Gmel Si/st. ii. p. 597- Larus ri- 
dibundus Ind. Orn. ii. p. 812. tar. y. and in the Orn. Diction. 
will be found under Gull-brown-headed to refer to Gull-black- 
headed. 
In this there is no material difference from the last, except that 
the legs have attained their perfect colour (red), and the head 
vol. vii. 2 p assumes 
