Geese 



169.1. Blue Goose (Chen caerulescens). L. 28. Ads. 

 Head and neck white; below brownish gray; foreback 

 'ike breast; rump gray. Yng. Similar but head and 

 neck grayish brown. 



Range. — North America; breeds in Hudson Bay region; winters on 

 west coast of the Gulf of Mexico; two California records; said to 

 have occurred in New Jersey. 



I 7 la. American White-fronted Goose (Anser albi- 

 frons gambeli). L. 28. Ads. Forehead and rump 

 white; below spotted with black. Yng. Similar but 

 no white on head no black below. 



Range. — North America; breeds in Arctic region; winters on Gulf 

 Coast, California and Mexico; rare on Atlantic coast. 



176. Emperor Goose (Thilacte canagica). L. 26. 



Ads. Foreneck blackish; rest of head and neck white 



sometimes tinged with rusty; tail mostly white. Yng. 



Body less distinctly scaled; head and hind-neck spotted 



with grayish. Notes. When flying, a deep, hoarse, 



x ~ a ~ x ~ 

 strident cla-ha, cia-ha,cla-ha; when alarmed and about 



to fly, a ringing d-ltigh, -M&gh. (Nelson.) 



Range. — "Coast and islands of Alaska north of the Peninsula; 

 chiefly about Norton Sound and Valley of the Lower Yukon; Com- 

 mander Islands, Kamchatka; casually south to Humboldt Bay, Cal- 

 ifornia." (A. O. U.) 



176. 



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