150 



PARAKEET AUKLET (fyolorxtynohua psittacuia', choices 33 and 33', 

 P9- 72). CRESTED AUKLET (Aethia cristatella; choices 32 and 32' , pg. 72) 

 LEAST AUKLET (A. pusilla; choices 18 and 18', pg. 70 ) and WHISKERED AUKLET 

 (A. pygmaea; choices 26 and 26', pg. 71 ). See comments regarding identi- 

 fication under Cassin's Auklet. These four species are largely restricted 

 to ice free areas of the Bering Sea, waters around the Aleutians and east- 

 ward almost to Kodiak, Alaska. Parakeet Auklets on rare occasions have 

 occurred as far south as central California. Specimens of any of these 

 species encountered south of southeast Alaska, or even Kodiak, should 

 be saved for verification. 



RHINOCEROS AUKLET (Cerorhinca monoeerata; choices 14 and 14', pg. 69) 

 This species is most similar to the first year Tufted Puffin, but 

 characters in the key, the darker belly and deeper bill of the latter 

 should distinguish them (Plates 31-1, 32). See table under Horned Puffin. 



Rhinoceros Auklets occur year round from southeast Alaska to central 

 California, and during winter to southern California. 



HORNED PUFFIN (Fratercula covniculata; choices 15 and 15', pg. 69) 

 This species cannot be easily confused with the Rhinoceros Auklet or the 

 Tufted Puffin, the species to which it is most similar. The following 

 table (from Ridgway, 1919) may be of use (measurements in mm): 



Rhinoceros Horned Tufted 



Auklet Puffin Puffin 



Wing 169-190 182-222 189-236 



Tarsus 25-30 25-38 29-36 



Exposed Culmen 32-39 45-56 53-65 



Horned Puffins occur year round, in ice free waters, from the Bering 

 Strait south to British Columbia. They occur Infrequently as far south 

 as southern California, but regularly to central California, during the 

 period from late winter to early summer. 



TUFTED PUFFIN (lunda oirrhata; choices 12 and 12', pg. 69). For 

 comments on identification see the above two species. Tufted Puffins 

 occur year round, in ice free waters, from the Bering Strait south to 

 central California; south of British Columbia they are rather uncommon. 

 On rare occasions they occur in southern California waters although not 

 long ago they bred in very low numbers on the northern Channel Islands. 



