APPENDIX 359 



23. Canada Goose. — Branta canadensis. 

 Common Wild Goose. 



Head and neck black ; triangular white patch on each cheek ex- 

 tending over throat ; upper parts brown, the feathers tipped with light 

 brown ; rump, tail, and primaries black ; lower parts gray, white in 

 anal region ; bill, legs, and feet black. Average size, 38 in. Young 

 birds have white cheek patches speckled with black. 



Hab. — North America, Arctic regions to Gulf of Mexico, Atlantic 

 to Pacific. 



[a) White-cheeked Goose (Branta canadensis occidentalis). 

 Very similar to Canada goose ; more or less distinct white collar 

 at base of black neck. Length, 33 to 36 in. 

 Hab. — Alaska to California. 



24. Black Brant. — Branta nigrans. 



Head, neck, upper part breast, abdomen and tail black ; bill, legs 

 and feet black ; white collar on neck interrupted behind ; upper parts 

 and wings dark brown ; crissum, sides of rump, upper and under tail 

 coverts white ; abdomen and breast blackish. Length about 25 in. 



Hab. — Western North America, Arctic region to Lower California. 



25. Brant Goose. — Branta bernicla. 



Head, neck, breast, back at base of neck, and tail black ; patch of 

 white on either side of head ; upper parts brownish gray ; under parts 

 grayish white ; pure white about and under tail ; rump brownish black ; 

 bill, legs, and feet black. Length, 24-30 in. 



Hab. — Eastern North America, chiefly about Atlantic Coast ; rare 

 in Mississippi Valley. 



26. Emperor Goose. — Philacte canagica. 



Head and back of neck white ; throat and forepart of neck brown- 

 ish black ; feathers on lower part of neck, with a small white spot at 

 tip ; back and under parts bluish gray ; lower back and upper tail cov- 

 erts bluish gray ; bill pale purplish ; legs and feet orange. Length, 

 26 in. Young : head and neck brownish black. 



Hab. — Coast and islands of Alaska. 



27. Ross Snow Goose. — Exanthemops rossii. 



Plumage white, except primaries, which are black. Bill, legs, and 

 feet red. Length about 33 in. 



Hab. — Arctic regions to Southern California, east to Montana. 



