The Vermilion Flycatcher is common in Coahuila. Except in the northwestern part of the State, the subspecies _mexicanus_ is present throughout Coahuila. The size of No. 32060 (wing, 80 mm.; tail, 62 mm.) suggests that the specimen is an intergrade between _P. r. flammeus_ and _mexicanus_. _P. r. flammeus_ and _mexicanus_ seem to intergrade in northern Coahuila. Burleigh and Lowery (1942:195) found _mexicanus_ to be "quite plentiful on the plains surrounding Saltillo." Sutton and Burleigh (1939a:33) noted the Vermilion Flycatcher "near San Pedro." Cory and Hellmayr (1927:92) listed _P. r. mexicanus_ from Sabinas. The size of the testes (6x4 mm. long) of No. 32060 and the dates (June 19 and 20) on which our specimens were collected indicate breeding. _Pyrocephalus rubinus flammeus_ van Rossem.--This subspecies of Vermilion Flycatcher occupies the northwestern section of Coahuila. Marsh and Stevenson (1938:287) took a specimen of _P. r. flammeus_ "near Santo Domingo, east of the Del Carmens...." Miller (1955a:167) re-examined this specimen and stated that "its affinity with the northwest race of the species seems correct in terms of the characters outlined by van Rossem (1934:353)." _Eremophila alpestris enthymia_ (Oberholser).--Miller, Friedmann, Griscom, and Moore (1957:105) recorded this subspecies of Horned Lark wintering 4 mi. S Hipolito (November 2 to February 24). They reported also that _E. a. enthymia_ breeds in Coahuila (4 mi. S Hipolito ?). *_Eremophila alpestris diaphora_ (Oberholser).--_Specimens examined:_ total 9: [Male] [Male] 32073-32078 and [Female] 32079 from 7 mi. S, 4 mi. E Bella Union, 7200 ft., June 25, 1952; and [Male] [Male] 31605-31606 from 14 mi. W San Antonio de las Alazanas, 6500 ft., January 9, 1954. Burleigh and Lowery (1942:195) wrote that this subspecies of Horned Lark was uncommon "about Saltillo," but "fairly common" in Diamante Valley, at about 7000 feet. Oberholser (1902:863) recorded the subspecies _aphrasta_ from La Ventura. Ridgway (1907:326) listed _Otocoris alpestris aphrasta_ Oberholser from Saltillo and La Ventura. However, Miller, Friedmann, Griscom, and Moore (1957:105) indicated that _E. a. diaphora_ rather than _aphrasta_ was recorded from Saltillo and La Ventura. Sutton and Burleigh (1939a:35) remarked that "specimens collected near Ramos Arizpe [in southeastern Coahuila]" proved to be _E. a. aphrasta_. However, this record might be questioned, as Miller, Friedmann, Griscom, and Moore (_op. cit._) indicated, because _diaphora_, rather than _aphrasta_, seems to occupy the southeastern sector of Coahuila. Possibly typical representatives of _aphrasta_ and/or intergrades between _aphrasta_ and _diaphora_ are present in western Coahuila; however, no records of _E. a. aphrasta_ exist from western Coahuila.