34 



BULLETIN 292. U. S. DEPARTMENT OF AGBICULTUBE. 



Clarence (Bidgway), where single birds were noted; and to Chern off- 

 sky Bay, Unalaska, where a large flock was seen October 1, 18S0 

 (Bean). None of these places is far distant from the usual home 

 of the species, and it probably occurs not rarely in migration on the 

 shores of Bering Sea and of the adjacent Arctic Ocean. A specimen 

 taken June 9, 1901, at Franklin B^y, Mackenzie (Babbitt), was a 

 straggler far from home. 



WESTERN GUEL. 



Larus occidentalis Audubon. 



The western gull 

 is resident along the 

 Pacific coast from 

 northern Washing- 

 ton to southern 

 Lower California. 

 The species breeds 

 north at least to 

 Carroll Islet, Wash. 

 (Jones), and one 

 was seen at Tatoosh 

 Island, Wash., June 

 5, 1907 (Jones), but 

 it may hare been 

 a nonbreeder. 

 Southward it 

 breeds to the south- 

 ern end of Lower 

 California, near 

 Carmen Island 

 (Frazar) . D uring 

 the spring of 1905 

 it was c o m m o n 

 along the coast of 

 the mainland of 

 Mexico south to 

 San Bias, Tepic 

 (Bailey), and, 

 though as late as 

 April &-12 it was still common on Isabella Island, one of the Tres 

 Marias, there was no sign of its breeding anywhere in that region 

 (Bailey). 



Eggs were taken March 13, 18S7, near Carmen Island, Lower Cali- 

 fornia (Frazar); Idlefonso Island, Lower California, April 5-7, 

 1906 (Thayer) ; in California on the Farallon Island-, May 6. 1863, and 

 May 13, 1864 (Cooper); May 9, 1885, May 9, 1886, and May 13, 1SS7 

 (Bryant); Santa Barbara Island, May IS, 1S97 (Grinnoll); and 



O OCCURHENC 

 + WINTERING 

 > RESIDENT 



Fig. 15. — Western gull (Lams occidentalis). 



