N0.1727. BIRDS OF Till: 1906 "ALB ITR0S8" CRl ISE— CLARK. 35 



Family LARID^E. 



Shibfaxnily LARINvl-',. 

 RISSA TRIDACTYLA POLLICARIS Ridgway. 

 PACIFIC KITTIWAKE. GAVARUSCHKA. KIRUGA. KEROO. 



The Pacific Kittiwake was common in Unalga Pass and in all 

 parts of Bering Sea visited by us, ('specially on Bower's Bank. A 

 few were seen between Bering Island and Kamchatka, and in the 



kurils they were found until we were about half way between Sinni- 

 shir and Yezo. 



RISSA BREVIROSTRIS (Bruch). 

 RED-LEGGED KITTIWAKE. KRASNO-NOGAJA. GAVARUSCHKA. 



The Red-legged Kittiwake was seen in small numbers at sea near 

 Unalaska, but became more common in the western part of the 

 Aleutian chain and about the Commander Islands. It was not found 

 in Kamchatka nor in the Kurils. 



LARUS BARROVIANUS (Ridgway). 

 POINT BARROW GULL. 



The only Point Barrow Gull observed during the whole trip was on 

 the morning of September 28 while we were anchored in Patience 

 Bay, Sakhalin. 



LARUS GLAUCESCENS Naumann. 

 GLAUCOUS-WINGED GULL. TSCHAIKA. 



A few of these gulls were seen about San Francisco Bay the day 

 we left. Two were noticed following the ship on May 7, when we 

 were oil the Oregon coast, and another the next day. They were 

 common in all parts of Puget Sound, and abundant about Union 

 Bay, Vancouver Island. We picked them up at sea 20 miles or more 

 south of the Aleutian chain, and found them abundant in Unalga 

 Pass and about Unalaska. They were common at Atka, Attn, and 

 Agattu, especially about the lakes on the last-named island, where 

 several were shot. A few were also noticed about the Commander 

 Islands. 



LARUS SCHISTISAGUS Stejneger. 

 SLATY-BACKED GULL. OUNEMAS. 



I found a. few of these gulls in Unalga Pass, near Unalaska, but did 

 not meet with the species again until we reached the Commander 

 [slands, when a few were seen both at Copper and Bering islands. 

 About Petropaulski, however, this species was abundant, and it was 

 also abundant at Simushir, in the Kurils, where I secured eight at a 

 small pond near the sea. One of these birds had two unbroken eggs, 

 apparently of some species of cormorant (Phalacrocorax) , in its 

 stomach, and another a small octopus. We found this species com- 

 mon about the eastern shore of Sakhalin the latter part of September. 



