GAME BIRDS AND WILD FOWL. 349 



America. It is equally gregarious, and often mingles in small 

 numbers with flocks of the preceding race. 



Nidification. — ^The breeding habits, the nest, and the eggs 

 of the White-bellied Brent Goose are not known to differ in any 

 noteworthy manner from those of its ally. 



Diagnostic Characters.— ^i?«22V/a, with the underparts 

 below the breast nearly white, and with the head and neck black, 

 with a small white patch on the sides of the latter. Length, 

 22 to 24 inches. Intermediate forms between the two extreme 

 races are frequently met with in the British Islands. 



