ALDER FLYCATCHER 211 



Dickey and van Rossem (1938) say that the alder flycatcher is a 

 fairly common fall migrant and less common midwinter visitant to 

 the lowlands of El Salvador. "Extremes of altitude are 200 and 

 1,000 feet. Dates of arrival and departure are August 25 and 

 February 10." 



DISTRIBUTION 



Range. — North America, south in winter to northwestern South 

 America. 



Breeding range. — The species breeds north to Alaska (Nulato, 

 Fort Yukon, and Circle) ; Mackenzie (Fort McPherson, Fort Good- 

 hope, Fort Providence, and probably Fort Resolution) ; northern 

 Manitoba (Brochet Lake, Cochrane River, and Norway House) ; 

 northern Ontario (Moose Factory) ; northern Quebec (Richmond 

 Gulf) ; and east-central Labrador (Esquimaux Island). The eastern 

 boundary of the range extends southward along the coast from this 

 point to northern New Jersey (Plainfield). South to northern New 

 Jersey (Plainfield) ; probably western Maryland (Thayerville) ; cen- 

 tral Ohio (Columbus and Lewistown Reservoir) ; central Indiana 

 (Indianapolis) ; southern Illinois (Mount Carmel and Olney) ; north- 

 eastern Oklahoma (Tulsa) ; central Texas (probably Cameron and 

 San Angelo) ; central Veracruz (Orizaba) ; southwestern Tamau- 

 lipas ( Jaumave) ; Durango (Rio Nasas) ; probably northern Sonora 

 (Nogales) ; and northern Baja California (Cerro Prieto, Las 

 Cabras, and Los Coronados Islands). The western limits of the 

 breeding range extend northward from northern Baja California 

 (Los Coronados Islands) along the Pacific coast, chiefly in the moun- 

 tainous regions, to Alaska (Chickamin River, probably Cordova 

 Bay, and Nulato). 



Winter range. — In winter the species is found north to southern 

 Guerrero (Coyuca) ; Guatemala (Los Amates) ; Honduras (Lancetilla 

 and Ceiba) ; Nicaragua (San Carlos) ; Panama (Gatun) ; northern 

 Colombia (Mamatoca, Bonda, and Buritaca) ; and northwestern Vene- 

 zuela (Encontrados). East to western Venezuela (Encontrados) ; 

 east-central Colombia (Puerto Berrio, Honda, and Rio Frio) ; and 

 northeastern Ecuador (Rio Suno). South to Ecuador (Rio Suno, 

 Gualaquiza, Zamora, and Zaruma). West to southwestern Ecuador 

 (Zaruma) ; Costa Rica (Bolson) ; El Salvador (Colima) ; southwest- 

 ern Guatemala (San Jose and Mazatenango) ; and Guerrero 

 (Coyuca). 



The range as outlined is for the entire species, which has been 

 separated into two subspecies or geographic races. The typical 

 race, known as the alder flycatcher {EmpidoTiax trailli trailU) , occu- 



