290 BULLETIN 203, UNITED STATES NATIONAL MUSEUM 



DISTRIBUTION 



Range. — ^Western North America. 



Breeding range. — Townsend's warbler breeds north to southern 

 Alaska (Seldovia, Port Nell Juan, and Cordova) ; and southern Yukon 

 (Lapie Kiver and Sheldon Lake). East to eastern Yukon (Sheldon 

 Lake and Lake Marsh) ; central to southeastern British Columbia 

 ( Atlin, Bear Lake, Tacla Lake, and Kevelstoke) ; southwestern Alberta 

 (Banff National Park) ; and western Montana (Fortine, Columbia 

 Falls, Great Falls, and Ked Lodge) . South to central southern Mon- 

 tana (Red Lodge) ; northwestern Wyoming (Mammoth Hot Springs) ; 

 northern Idaho (Falcon and Moscow) ; and southern Washington 

 (Blue Mountains, Preston, and Mount Adams). West to western 

 Washington (Mount Adams, Mount Eainier, Seattle, and Belling- 

 ham) ; western British Columbia (Comox, Vancouver Island, and the 

 Queen Charlotte Islands) ; and southern Alaska (Craig, Baranof 

 Island, Glacier, Cordova, and Seldovia) . 



Winter range. — The Townsend's warbler is found in winter in two 

 widely separated areas. It is found in varying numbers in the coastal 

 region of California from Mount St. Helena, Sonoma County, south 

 to San Diego, and on the Santa Barbara Islands. A specimen col- 

 lected at Patagonia, southeastern Arizona on December 3, may have 

 been wintering. It also winters in the mountains of western Mexico 

 and Central America from Guerrero (Tlalixtaquilla) ; and the Federal 

 District (Tlalpan) ; through Oaxaca (La Parada and Totontepec) ; 

 Guatemala (Huehuetenango, Tecpan, Duehas, and Guatemala) ; El 

 Salvador (Los Esesmiles and Mount Cacaguatique) ; to central north- 

 ern Nicaragua (Matagalpa) . 



Migration. — Late dates of spring departure are : El Salvador — San 

 Jose del Sacore, March 16. Guatemala — Tecpan, May 2. Nayarit — 

 Tres Marias Islands, May 11. Sonora — Oposura, May 31. Texas — 

 Boot Spring, Chisos Mountains, May 16. New Mexico — Rinconada, 

 May 6. Arizona — Rock Canyon, Santa Catalina Mountains, May 25. 

 California — Buena Vista, May 10. 



Early dates of spring arrival are: Hidalgo — Jacala, March 28. 

 New Mexico — Apache, April 23. Arizona — Tombstone, April 3. Colo- 

 rado — Loveland, May 11. Wyoming — Cheyenne, May 11. Montana — 

 Columbia Falls, May 4. Idaho — Coeur d'Alene, April 29. Oregon — 

 Sutherlin, April 21. Washington — Bellingham, April 25. British 

 Columbia — Courtenay, March 28; Atlin, May 18. Alaska — Craig, 

 April 27. 



Late dates of fall departure are : Alaska — Ketchikan, September 5. 

 British Columbia — Atlin, September 1 ; Okanagan Landing, Septem- 

 ber 15. Washington — Tacoma, October 3. Alberta — Jasper Park, 

 September 8. Idaho — Priest River, September 10. Montana — ^Mis- 



