_Dendroica auduboni memorabilis_ Oberholser.--Oberholser (1921:246) recorded _D. a. memorabilis_ from Saltillo on April 17. This subspecies seems to winter commonly in western Mexico and less commonly in the Central Plateau and Sierra Madre Oriental (Miller, Friedmann, Griscom, and Moore, 1957:249-250). _Dendroica nigrescens_ (Townsend).--_Specimen examined:_ one, [Male] 31095, from Fortin (=33 mi. N, 8 mi. W San Geronimo), 3300 ft., March 28, 1952, weight, 9.3 gms. The Black-throated Gray Warbler is an uncommon spring and possibly fall migrant in Coahuila. Miller (1955a:173) found _D. nigrescens_ uncommon in the Sierra del Carmen. He saw and heard a spring migrant singing on April 12 at 7000 feet and obtained a male on April 16. _Dendroica townsendi_ (Townsend).--Townsend's Warbler is a spring and fall migrant in Coahuila. Miller (1955a:173) recorded _D. townsendi_ on September 2 at Jardin del Sur in Chuperosa Canyon in the Sierra del Carmen. Burleigh and Lowery (1942:203) saw two individuals of Townsend's Warbler at Diamante Pass on April 14. Amadon and Phillips (1947:578) secured this species "in mesquite about twenty miles west of Saltillo on August 28." Dickerman saw Townsend's Warblers in the Sierra de la Madera on December 13, 1953; 20 mi. S Ocampo on April 4, 1954; and 13 mi. E San Antonio de las Alazanas on April 10, 1954. _Dendroica virens_ (Gmelin).--Dickerman saw one Black-throated Green Warbler 13 mi. E San Antonio de las Alazanas, 9350 feet, on April 10, 1954, in a white pine-Douglas fir-aspen association. This seems to be the first record of this species in Coahuila. *_Dendroica chrysoparia_ Sclater and Salvin.--Miller, Friedmann, Griscom, and Moore (1957:251) listed the Golden-cheeked Warbler from Hipolito on July 3. _Dendroica occidentalis_ (Townsend).--_Specimen examined:_ one, [Male] 31592, from 13 mi. E San Antonio de las Alazanas, April 10, 1954. The Hermit Warbler seems to be an uncommon spring and probably fall migrant in Coahuila. Miller, Friedmann, Griscom, and Moore (1957:252) reported _D. occidentalis_ from the State. No. 31592, whose testes were not enlarged, was obtained in a pine-spruce-aspen association. _Geothlypis trichas brachidactylus_ (Swainson).--Miller, Friedmann, Griscom, and Moore (1957:261) listed this subspecies of the Yellowthroat as recorded from Coahuila. _Geothlypis trichas occidentalis_ Brewster.--Burleigh and Lowery (1942:204) found the Yellowthroat "only on the outskirts of Saltillo, where ... [this species] was not uncommon in the thickets, especially around a small stand of marsh grass bordering a pond." Three males that Burleigh and Lowery (_loc. cit._) obtained were tentatively identified as _G. t. occidentalis_. Dickerman saw one male Yellowthroat at San Marcos (=20 mi. S Cuatro Cienegas) on May 4, 1954.