SEA DUCKS 96 



c*. Head and neck either blue black or blue green with 

 white lores or brown with a decided white collar on 

 front of chest, 

 d'. Speculum in wing crossed by dark bar; nostril near 



middle of bill. Barrow's Golden-eye. 

 d'. Speculum in wing not crossed by dark bar ; nostril 

 nearest tip of bill. Am. Golden-eye. 

 a*. No white in wing, 

 b'. Bill under 1.25. 

 c'. Central tail feathers longer than others and pointed; 



under tail coverts white. Old Squaw, 

 c^. Central tail feathers not sharply pointed; under tail 

 coverts not white. Harlequin Duck. 

 b». Bill over 1.25. 

 c'. Feathers on culmen extending much farther forward 



than those on lores. Surf Scoter, 

 c*. Feathers on culmen not extending much farther for- 

 ward than those on lores. American Scoter. 



Genus AYTHYA Boie. 



146. Aythya americana (Eyt.). Redhead; American 



Pochard. 



Plumage of adult male : head and upper neck chestnut red with reddish 

 purple gloss; lower neck, breast, upper back, upper and under tail coverts 

 black ; back, scapulars, sides and flanks barred with vermicular black and 

 white lines of equal width ; wing coverts brownish gray. Plumage of adult 

 female : head and neck grayish brown, almost white on chin and adjoining 

 throat ; back, scapulars, chest, sides and flanks grayish brown, more or less 

 margined with buff y or ashy ; bill with indistinct band across end. Young 

 males: somewhat between adult male and female in plumage. Young 

 females : similar to adult female. Wing 8.50 to 9.50 ; culmen 2.12 ; tarsus 

 1.50. End of bill moderately depressed with the nail decidedly hooked. 



Geog. Dist. — North America, breeding from California, Michigan and Maine 

 (rarely) northward; winters from Virginia southward. 



County Records. — Cumberland; fairly common, (Brock). Kennebec; 

 (Dill). Knox; rare migrant, (Rackliflf). Oxford; not very common, (Nash). 

 Penobscot ; one shot at Levant, October 26, 1896, now in the University of 

 Maine collection, (Knight). Sagadahoc ; two captured in Merrymeeting Bay, 

 Nov. 4. 1903, in 1904 first seen on October 15, and seen frequently from Oct. 

 20 to Nov. 1 in small flocks, (Noble). Washington; rare, has been known 

 to breed, (Boardman). 



