ASH-THROATED FLYCATCHER 135 



brown tail, perching in an upright posture on some low tree or bush, 

 is sure to be this species. It is smaller than the Arizona crested, as 

 well as paler, and larger than the olivaceous flycatcher. The two 

 western kingbirds have black or dark brown tails and brighter yellow 

 under parts, as well as gray breasts. 



DISTRIBUTION 



Range. — Western United States and Mexico south to Guatemala. 



Breeding range. — The ash-throated flycatcher breeds north to cen- 

 tral Washington (North Yakima) ; northeastern Oregon (AVeston) ; 

 northern Utah (Salt Lake City) ; western Colorado (Grand Junction 

 and Naturita) ; New Mexico (Santa Fe and Roswell) ; and west- 

 central Texas (San Angelo). East to western Texas (San Angelo, 

 Mason, Kerrville, San Antonio, and Losoya Crossing) ; and probably 

 southwestern Tamaulipas (Miquihuana). South to probably south- 

 western Tamaulipas (Miquihuana) ; Durango (Rio Sestin) ; southern 

 Sinaloa (Rosario) ; and southern Baja California (Miraflores). West 

 to Baja California (Miraflores, La Paz, San Fernando, and Coco- 

 pah) ; California (El Cajon, Santa Barbara, Hayward, Nicasio, 

 Ravensdale, and Edgewood) ; western Oregon ( Klamath Falls, Rogue 

 Valley, Prineville, and Twickenham) ; and Washington (probably 

 The Dalles and North Yakima). 



Winter range. — In winter the species is found north to rarely south- 

 western Arizona (Yuma) ; northern Sonora (Sonoyta and Pozo de 

 Luios) ; southwestern Chihuahua (Duranzo) ; and Yucatan (Chichen- 

 Itza). Note: This species has been detected casually in winter north 

 to the southern point of Nevada (Fort Mohave and Searchlight). 

 East to Yucatan (Chichen-Itza) ; eastern Guatemala (Rio Dulce and 

 Gualan) ; and central Costa Rica (La Palma). South to central Costa 

 Rica (La Palma and Puntarenas) ; El Salvador (Libertad and Barre 

 de Santiago) ; western Guatemala (San Lucas, Lake Atitlan, and 

 Sacapulas) ; southern Oaxaca (Tapanatepec and Chivela) ; southern 

 Guerrero (Coyuca) ; and southern Baja California (Miraflores). 

 West to Baja California (Miraflores and La Paz) ; western Sonora 

 (Tesia and Guaymas) ; and rarely southwestern Arizona (Yuma). 



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

 separated into two subspecies. Most of the range is occupied by 

 the typical race, Myiarchus c. cinerascens, the Lower California fly- 

 catcher (M. c. pertlnax) being found only in the southern part of the 

 peninsula of Baja California. 



Spjnng migration. — Early dates of arrival are: Texas — San An- 

 tonio, March 10. New Mexico — Carlisle, April IG. Colorado — Pueblo, 

 May 12. Arizona — Huachuca Mountains, April 9. Nevada — Pahrump 



