Geese. 



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

 Head and neck white; below brownish gray; foreback 

 like 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. 



17 6. 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, 



A * A ~ A ^ 



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

 to fly, a ringing u-lugh, -ulugh. (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. 



85 



