ANSERINiE. BERNICLA. 
151 
of the back black ; its middle part, the scapulars, and wing- 
coverts ash-grey banded with black ; the lower parts white, 
the sides faintly barred with ash-grey. Female similar, but 
smaller. 
Male, 27i, 55, 17, 2*$, 2J, T V Female, 24, 52. 
Occurs during the winter in large flocks, chiefly on the 
western side of Britain. Feeds on grass, roots of aquatic 
plants, and Zostera marina. In summer it repairs to the 
arctic regions to breed. It is found in America also. The 
eggs are from six to eight, two inches and seven-twelfths 
long, an inch and eight-twelfths in breadth, elliptical, and of 
a greyish-white tint. 
Clakis. Claike Goose. Barnacle. White-cheeked Bar- 
nacle. 
Anas Bernicla, Linn. Syst. Nat. i. 198. — Anas Erythropus, 
Lath. Ind. Ornith. ii. 843. — Anser leucopsis, Temm. Man. 
d ? Ornith, iv. 520. 
236. Bernicla melanopsis. Black-faced Bernacle- 
Goose. 
Male twenty-four inches long ; bill an inch and a half in 
length, black ; tarsus two inches and a quarter long, black ; 
head and neck glossy black ; a patch of white, dotted with 
black, on each side of the upper part of the neck ; the upper 
parts of the body brownish-grey, the lower greyish-white ; the 
sides barred with ash-grey. Female similar, but smaller. 
Male, 25, 48, 13-J, 1^, l-ff, X V Female, 23, 46. 
This species, which is much inferior in size to the last, 
and easily distinguishable from it by having the head entirely 
black, arrives in October and departs in April. It is more 
numerous than the other species, especially along the eastern 
coasts, where it feeds chiefly on the cylindrical fleshy roots 
of Zostera marina. It breeds in the arctic regions of both 
continents, laying six or eight eggs, of a nearly elliptical 
form, pale greyish-green, two inches and a half in length, an 
inch and seven-twelfths in breadth. 
Brent Goose. Brand Goose. Barnacle. Black-headed 
Barnacle. Bing-necked Barnacle. Clatter Goose. Horra 
Goose. Ware Goose. 
Anas Bernicla, Linn. Syst. Nat. i. 198.— Anas Bernicla, 
Lath. Ind. Ornith. ii. 844. — -Anser Bernicla, Tenlm. Man. 
d’Ornith. iv. 522. — Bernicla melanopsis, Black-faced Ber- 
nacle- Goose, MacGillivray, Brit. Birds, v. 
