88 NORTH AMERICAN FAUNA 76 



Rhinoceros auklet (Cerorhinca monoceratd), VRv. 



A single alternate pliimaged bird was seen near Round Island on 

 4 July 1977 (Ameson 1977). Although seen in the Aleutian Islands (Ameri- 

 can Ornithologists' Union 1983), most records of rhinoceros auklets in 

 Alaska are south of the Alaska Peninsula (Gabrielson and Lincoln 1959). 



Tufted puCGn (Fratercula cirrhatd). Asr (1 1 May-8 September). 

 Specimen: WFB686. 



Tufted puffms (Fig. 20) nested in burrows (MHD photo; MRP photo) 

 or crevices in cliffs along the coast and on offshore islands in areas 

 generally inaccessible to foxes. Estimates as reported in Sowls et al. (1978) 

 totaled 87,410 tufted puffins on the study area. Within the Walrus Islands, 

 tufted puffins were most common on Twin Islands although found on 

 each island (Ameson 1977). 



At Shaiak Island, 30 5 x 5-m plots averaged 0.4 active burrows per 

 square meter (SE = 0.04; range, 0- 1 .25). The first young in 1976 was found 

 there on 17 July, and most eggs had hatched by 4 August. D. R. Herter and 

 D. Lloyd (personal communication) found newly hatched chicks there on 

 13 and 25 July 1981. Of the 62 puffin nests that we monitored from the 



Fig. 20. Tufted puffin; Shaiak Island, July 1976. Photo by M. R. Petersen. 



