WILSON'S PILEOLATED WARBLER 635 



tember 3, 1933 ; San Juan Atitan, September 8, 1934 ; Huehuetenango, 

 September 11, 1934. Costa Rica — La Hondura (Carriker), Septem- 

 ber 22; Vara Blanca, September 18, 1937; San Miguel de Desam- 

 parados, September 20, 1935 ; El General, September 18, 1936. 



"Late dates of spring departure from Central America are : Costa 

 Rica— El General, April 22, 1936 and April 24, 1937; Vara Blanca, 

 May 5, 1938; Juan Vinas (Carriker), April 19. Guatemala — passim 

 (Griscom), April 26; Sierra de Tecpan, May 22, 1933." 



DISTRIBUTION 



Range. — North America and Central America. 



Breeding range. — The pileolated warbler breeds north to northern 

 Alaska (Kotzebue Sound, probably Barrow, and Fort Yukon) ; north- 

 ern Yukon (La Pierre House) ; northwestern and central eastern 

 Mackenzie (Fort MacPherson, Mackenzie Delta, and Fort Anderson) ; 

 northeastern Manitoba (probably York Factory) ; northern Ontario 

 (probably Moose Factory) ; central Quebec (JVIistassini Post, Mingan 

 Islands, and Mutton Bay) ; southern Labrador (probably Hamilton 

 River, Cartwright, and Squasho Run) ; and Newfoundland (Saint 

 Anthony, Lewisport, and Trinity). East to Newfoundland (Trin- 

 ity) ; central Nova Scotia (Kings County and Halifax) ; and Maine 

 (Machias). South to Maine (Machias, Augusta, and Fryeburg) ; 

 northern New Hampshire (Lancaster and Jefferson) ; northeastern 

 Vermont (Saint Johnsbury) ; southern Quebec (Sherbrooke) ; south- 

 ern Ontario (Sudbury, Madoc, and Ottawa) ; northern Michigan 

 (Baraga and Blaney Park) ; northern Minnesota (Mud Lake and 

 Duluth) ; western Texas (probably Guadalupe, Davis, and Chisos 

 Mountains) ; north-central New Mexico (Santa Fe Canyon) ; and 

 southern California (Julian and Escondido). West to California 

 (Escondido, Riverside, Mount Whitney, Eagle Lake, and Edgewood) ; 

 western Oregon (Mount Hood and Fort Klamath) ; western Washing- 

 ton (Bellingham, Seattle, and Mount Rainier) ; British Columbia 

 (Victoria) ; and Alaska (King Cove, Kodiak Island, Cordova Bay, 

 Chitina Moraine, Sitka, Gravina Island, Norton Sound, and Kotzebue 

 Sound). 



'Winter range. — This species winters north to southern Baja Cali- 

 fornia (La Paz) ; southern Sonora (Tesia, and Alamos) ; Nuevo Leon 

 (Monterrey, and Linares) and southernmost Texas (Santa Maria). 

 East to southernmost Texas (Santa Maria) ; Tamaulipas (Victoria) ; 

 Costa Rica (Guayabo, San Jose, and Cerro de Santa Maria) ; and 

 Panama (Veraguas). South to Panama (Veraguas, Chiriqui, and 

 Boquete) ; and Guerrero (Chilpancingo). West to Guerrero (Chil- 

 pancingo) and southern Baja California (San Jose del Cabo and La 

 Paz). 



