102 PACIFIC COAST AVIFAUNA No. 12 



195. Sialia mexicana occidentalis J. K. Townsend 



Western BiiUEBiRo 



Sialia mexicana occidentalis (1) Linton, Condor, xi, 1909, p. 194. (?) Willett, Pac. Coast 

 Avif., 7, 1912, p. 109. 



Rare migrant. C. B. Linton (1) secured an adult male on San Clemente 

 Island in December 1908, and 1 saw a single bird on Santa Barbara as late as 

 May 1, 1908. 



HYPOTHETICAL LIST 



1. Priocella glacialoides (A.Smith) 



Slender-billed Fulmar 

 FuJmarus glacialoides Baird, Brewer and Ridgway, Water Birds N. Am., ii, 1884, p. 374. 

 A skeleton was found on Catalina Island by J. G. Cooper, which he ascribed 

 to this species. Systematic collecting off the islands should produce records of 

 this bird, but the above instance of its occurrence is inconclusive. 



2. Oceanites oceanicus (Kuhl) 



Wilson Petrel 



Oceanites oceanicus Cooper, Proc. Calif. Acad. Sci., iv, 1868, p. 11. 



J. Gr. Cooper saw a white-rumped petrel near San Nicolas Island in July, 

 1863, which he ascribed to this form. In all probability a case of mistaken iden- 

 tity. 



3. Marila af finis (Eyton) 



Lesser Scaup Duck 

 Aythya affinis Linton, Condor, x, 1908, p. 83. 



On San Clemente Island during February, 1907, C. B. Linton saw several 

 ducks which he believed to be of this species. I personally believe it very likely 

 that the species is occasionally found about the islands, but as Linton himself is 

 not at all sure of his identification of the birds seen, I have thought it best to 

 relegate the record to the hypothetical list. 



4. Branta canadensis, subsp. 



On Santa Cruz Island, April 25, 1911, a single goose of this group flew over 

 A. van Rossem. He is of the opinion that it was B. c. hutchinsi, and it seems 

 likely that such was the case. 



5. Totanus flavipes (Gmelin) 



Yellowlegs 



' C. C. Lamb informs me that while he and R. H. Beck were on the Coronados, 

 April 11, 1908, the latter shot a yellowlegs which they believed was small enough 



