ROSS'S GOOSE. 



Chenrossii (Cassin). 



In color the plumage of the little Ross's goose is 

 precisely similar both in adult and young to that of the 

 larger snow geese; that is, pure white, except for the 

 primaries, which are black, becoming ash color at the 

 base. The bill and feet are red; the nail white. The 

 base of the bill is usually covered with wart-like ex- 

 crescences, or is wrinkled and roughened. There is 

 great difference in the bills, no two being just alike. 

 The young are white, tinged with gray, the centre of 

 the feathers often being dark colored. 



Ross's goose is the smallest of our geese, being about 



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