246 U. S. NATIONAL MUSEUM BULLETIN 211 



(White Mountains, Charleston Mountains), southwestern Utah 

 (Beaverdam Mountains), north-central Arizona (Wupatki National 

 Monument), north-central New Mexico (San Miguel County, 

 Montoya), and western Texas (Guadalupe Mountains, Chisos 

 Mountains) ; south through southeastern California (Inyo Mountains, 

 Campo) to southern Baja California (Cape San Lucas, Victoria 

 Mountains), central-northern and southeastern Sonora (Nogales, 

 Rancho Santa Barbara), and southeastern Coahuila (Las Delicias). 

 Has nested recently in central-western Nevada (Stillwater) and 

 northeastern Utah (Powder Springs). 



Winter range. — Winters regularly north to northern Baja Cali- 

 fornia (San Quintin, San Fernando) and southern Sonora (San Jose 

 de Guaymas, Camoa) ; casually to southwestern California (Garnsey, 

 San Diego); south to southern Baja California (Miraflores), central 

 Michoac&n (Patzcuaro), Guerrero (Chilpancingo) and Puebla (San 

 Bartolo) ; east to western Nuevo Leon (Santa Catarina) and Hidalgo 

 (Cuesta Texcueda, Pachuca). 



Casual records. — Casual in coastal California (Santa Barbara, 

 San Diego), and in east-central Utah (25 miles east of Hanksville). 



Migration. — Early dates of spring arrival are: Chihuahua — Car- 

 rizalillo Mountains, April 18. Texas — El Paso, April 10; Glass 

 Mountains, Brewster County, April 13. New Mexico — Carlsbad 

 Cave, April 6; Silver City, April 19. Arizona — Patagonia, March 

 9; Tucson area, March 15 (median of 11 years, March 25). Utah — 

 Washington County, May 6; Powder Springs, May 8. California — 

 San Felipe Canyon, March 22; Reche Canyon near San Bernardino, 

 April 1. Nevada — Searchlight, May 5; 10 miles east of Stillwater, 

 May 11. 



Late dates of spring departure are: Michoac&n — Chupicauro, 

 April 29. Hidalgo — Cuesta Texquedo, April 7. Sonora — Tiburon 

 Island, April 11. 



Early date of fall arrival: Baja California — San Andres, September 

 21. 



Late dates of fall departure are: California — San Diego, September 

 2. Arizona — Huachuca Mountains, October 9 (median of 4 years, 

 Cochise County, October 5). 1 Texas — Hueco Mountains, El Paso 

 County, October 17; Guadalupe Mountains, October 11. 



Egg dates. — Arizona: 11 records, May 15 to June 28; 6 records, 

 May 22 to June 4. 



California: 75 records, April 24 to June 25; 40 records, May 9 to 

 May 22. 



1 October 26, 1909 (Bird-Lore, vol. 25, p. 389), is a typographical error. 



