PUFFINS 29 



a deep olive brown well spotted with black and measure 

 2.96 X 1.73 and 2.95 x 1.75 inches. The food is largely fish 

 and the habits not greatly different from those of the Loon. 



Family ALCID^E. Auks, Murres and Puffins. 



Key to the species of ALCID^E. 



A. Bill less than 0.70 in length. Dovekie. 



B. Bill more than 0.70 in length. 



* Depth of bill over 0.70 at nostril. 



1. Depth of bill over 1.00 at nostril. 



!. Bill more than 3.00 in length. Great Auk. 

 !!. Bill much less than 3.00. 



a'. Bill usually less than 1.50 in length. Tufted Puffin. 



a'. Bill usually more than the 1.50. Puffin. 



2. Depth of bill at nostril less than 1.00. Razor-billed Auk. 

 ** Depth of bill under 0.70 at nostril. 



1. Wings with white patch. 



a'. Greater wing coverts wholly white. Mandt's Guillemot. 



(Hypothetical List), 

 a'. Greater wing coverts black on basal half. Black Guillemot. 



2. Wings without white patch. 



a'. Depth of bill at angle less than one-third its length; bill 



usually over 1.60. Murre. 

 a*. Depth of bill at angle more than one-third its length ; bill 



usually under 1.60. Brunnich's Murre. 



Subfamily FRATERCULIN.E. Puffins. 

 Genus LUNDA Pallas. 



12. Lunda cirrhata Pall. Tufted Puffin. 



Plumage in summer adults : above black ; below sooty gray ; side of head 

 at front white ; a tuft of long straw-colored feathers on each side above the 

 eye ; bill olive-yellowish at base and bright red on outer portion ; feet scarlet. 

 Adult and immature winter plumage : no white on sides of head and tufts 

 above the eye absent ; portions of bill deciduous ; feet flesh color. Immature 

 similar but with upper mandible not grooved. Wing 7.50 to 8.00; culmen 



1.37. 



Geog. Dist. — Coast and islands of the Pacific from Santa Barbara Islands 

 and Japan to Alaska and Bering Strait, and usually breeding within the 

 same range. Accidental in Maine. 



