34 NORTH AMERICAN SHOREBIRDS. 



November or December. The species is not late in deserting the far 

 North, as evidenced by the following dates of the last ones seen: 

 Thank God Harbor, Greenland, September 11, 1871 (Bessels); 

 Possession Bay, Franklin, September 1, 1818 (Sabine); Wellington 

 Channel, August 28, 1852 (McCormick). At Cumberland Sound a few 

 remained in 1877 until November (Kumlien). 



Aleutian Sandpiper, Arquatella maritima couesi Ridgw. 



The western coast of Alaska and the Aleutian Islands seem to be 

 the principal home of the Aleutian sandpiper. It breeds throughout 

 the whole of the Aleutian Chain, east to the Shumagin Islands (Dall) ; 

 and also to the westward on the Commander Islands of Asia (Stej- 

 neger). It winters on the Aleutians and south along the mainland 

 of Alaska to Sitka (Bischoff). A few of the breeding birds of the 

 Commander Islands remain throughout the winter, but most of them 

 go south as far as the Kurile Islands (Sharpe). 



Early in August, when the young are strong of wing, great flocks 

 move north and appear on the west coast of the mainland of Alaska, 

 at least as far north as Kotzebue Sound (Nelson); they occur also 

 inland to Nulato (Dall), and on the Asiatic side at least to Plover Bay 

 (Dall). This northward migration takes them also to the Pribilof 

 Islands (Seale). They remain in this northern part of the range until 

 driven south by the gathering ice; the last leave Norton Sound about 

 the middle of October (Nelson). The earliest records of eggs taken 

 on Bering Island are about the middle of May (Stejneger), and on 

 Unalaska Island the first week in June (Keed). 



Pribilof Sandpiper. Arquatella maritima ptilocnemis (Coues). 



The name Pribilof sandpiper indicates the principal breeding place, 

 but in addition, the species has been found breeding on the islands 

 of St. Lawrence (Nelson), St. Matthew (Elliott), and Hall (Grinnell). 

 It has been taken from July 17 to August 29 on the shores of Norton 

 Sound (McGregor), but there is nothing to indicate that it breeds in 

 the vicinity, and its occurrence there is probably due to a northward 

 migration after the breeding season. The main winter home has not 

 yet been ascertained, and the only winter records to date are those 

 of a few seen in December and January at Portage Bay, near the base 

 of the Alaska Peninsula (Hartlaub). In spring migration the Pribilof 

 sandpiper has been taken April 1-14 at Nushagak, Alaska (Palmer), 

 and in fall migration August 5-14 near Unalaska Island (McGregor). 

 Eggs have been found on the Pribilof Islands from June 19 to July 6 

 (Prentiss) . 



Sharp-tailed Sandpiper. Pisobia aurita (Latham). 



The breeding range of the sharp-tailed sandpiper is not well known. 

 The bird occurs in summer on the north shore of Siberia at Cape 

 Waukarem (Nelson) and the Chuckchi Peninsula (Palmen), and this 



