20 BULLETIN 113, UNITED STATES NATIONAL MUSEUM. 



sionally breed. In the Old World breeds from Iceland, the Faroe 

 Islands, northern British Isles (north coast Scotland, Orkney, and 

 Shetland Islands, and many of the Hebrides), along the Arctic coast 

 and islands of Europe and Asia to northeastern Siberia. South to the 

 Commander Islands and probably the Kurile Islands. 



Breeding grounds protected in the following national reservation 

 in Alaska: Aleutian Islands (as Agattu, Amchitka, and Kiska). 



Winter range. — From Florida (Gulf coast) and southern Cali- 

 fornia (Point Concepcion) southward along both coasts of South 

 America to Argentina (Mar del Plata) and Chile (Valparaiso) and 

 occasionally as far as the Straits of Magellan. In the Eastern Hemi- 

 sphere along the western coast of Europe and Africa to the Cape of 

 Good Hope; also southwestern Asia from the Persian Gulf to the 

 Mekran and Sind coasts, and occasionally New Zealand and 

 Australia. 



Spring migration. — Northward along both coasts. Early dates of 

 arrival: Off Jacksonville, Florida, April 9; New Jersey, Stone Har- 

 bor, May 27 ; Massachusetts, May 24 and 31 ; Greenland, Thank God 

 Harbor, June 14; Washington, Tacoma, May 17; Alaska, St. Michael, 

 May 7; Point Barrow, May 29; Banks Land, May 31; Mackenzie 

 River, June 8. Late dates of departure : Straits of Magellan, March 

 6; Chile, Valparaiso, March 28; Florida, Matanzas Inlet, May 18; 

 Pennsylvania, Renova, June 18; Ontario, Toronto, June 20; south- 

 ern Labrador, June 21. 



Fall migration. — Southward along both coasts and irregularly in 

 the interior. Early dates of arrival : Nova Scotia, Sable Island, Sep- 

 tember 9; New Hampshire, Seabrook, September 2; Massachusetts, 

 August 30; Rhode Island, September 2; New York, Long Island, 

 August 6; Brazil, October 26; Argentina, Mar del Plata, October 

 9; southern Alaska, Cook Inlet, August 22; Washington, Puget 

 Sound, September 2; Chile, Valparaiso, November 6. Late dates of 

 departure: Ontario, October 20; Massachusetts, October 22; Rhode 

 Island, November 27 ; South Carolina, Charleston, November ; Well- 

 ington Channel, September 2; Alaska, Point Barrow, September 9, 

 and St. Michael, September 16 ; Pribilof Islands, October 18 ; AVash- 

 ington, Puget Sound, November 8; California, Monterey Bay, De- 

 cember 12. 



Casual records. — Fall records from the interior are so nmnerous 

 that they indicate a regular migration route in limited numbers. 



Egg dates. — Iceland: Sixteen records. May 21 to June 24; eight 

 records. May 26 to June 14. Northern Canada: Twelve records, 

 June 10 to July 8 ; six records, June 29 to July 8. Northern Alaska : 

 Four records, June 19 and 20 and July 10 and 18. Shetland Islands : 

 five records, May 16 to June 26 ; three records, May 30 to June 15. 



