Ila." He remarked also that the specimen from Jardin del Sur, which Marsh and Stevenson (1938:287) reported as _A. b. grisea_, was in extremely worn, dirty summer
plumage and contributed nothing reliable to racial determination.

*_Amphispiza bilineata grisea_ Nelson.--_Specimen examined:_ one, [Male]
31665, from the north foot of Sierra Guadalupe (=10 mi. S, 5 mi. W General Cepeda),
6500 ft., April 25, 1953. _A. b. grisea_ is the subspecies of Black-throated
Sparrow in southern Coahuila. Burleigh and Lowery (1942:208) saw this sparrow "frequently on the arid plateau
around Saltillo" and obtained specimens there that were
identified as _A. b. grisea_. Amadon and Phillips (1 947:581) saw individuals
on August 8 and 28 that were