The Field Sparrow is an uncommon spring and probably fall migrant in Coahuila. Other than No. 31116, _S. p. arenacea_ has only been recorded from Sabinas in March, when three specimens were obtained (Miller, Friedmann, Griscom, and Moore, 1957:390). The coloration of No. 31116 is much grayer and the black streaks on its back are much narrower than on typical representatives of _S. p. pusilla_. **_Spizella wortheni wortheni_ Ridgway.--The single specimen of Worthen's Sparrow obtained by Burleigh and Lowery (1942:209) "just outside the limits of Saltillo on April 16" represents the only record of occurrence of this species in Coahuila. **_Spizella atrogularis atrogularis_ (Cabanis).--Miller, Friedmann, Griscom, and Moore (1957:391) remarked that the Black-chinned Sparrow is a common resident of the Central Plateau from Durango and southern Coahuila southward. Burleigh and Lowery (1942:212) noted the species only at the foot of the mountains of southeastern Coahuila where, at 6000 feet, scattered pairs were found. Miller (1955a:177) observed a male on April 23 on a slope at the mouth of Boquillas Canyon of the Sierra del Carmen; he presumed it to be a transient. _Zonotrichia leucophrys leucophrys_ (Forster).--_Specimen examined:_ one, [Male] 30243, from 1 mi. SW San Pedro de las Colonias, 3700 ft., February 8, 1951. The White-crowned Sparrow is a fairly common migrant or winter visitant in Coahuila. Miller, Friedman, Griscom, and Moore (1957:393) recorded _Z. l. leucophrys_ from Sabinas on March 16 and February 23. Burleigh and Lowery (1942:212) remarked that "small flocks of White-crowned Sparrows were seen at infrequent intervals in thickets and stretches of underbrush on the outskirts of Saltillo on April 18 and again on April 24 ... [and] near a small town some twenty miles west of Saltillo on April 22." Specimens that Burleigh and Lowery (_loc. cit._) collected "near Saltillo" were identified as _Z. l. leucophrys_. _Zonotrichia leucophrys gambelii_ (Nuttall).--_Specimen examined:_ one, [Male] 31117, from Sierra de la Encantada (=38 mi. S, 23 mi. E Boquillas), 4400 ft., March 15, 1952. Miller (1955a:177) noted _Z. l. gambelii_ on April 27 at 4600 feet in Boquillas wash in the Sierra del Carmen. Hellmayr (1938:568) listed _Z. l. gambelii_ from Sabinas. _Zontrichia leucophrys oriantha_ Oberholser.--This subspecies has been recorded from Sabinas on April 25 and Hipolito on November 5 (Miller, Friedmann, Griscom, and Moore, 1957:393). _Melospiza lincolnii lincolnii_ (Audubon).--_Specimen examined:_ one, [Female] 31595, from 20 mi. S Ocampo, 7000 ft., April 5, 1954, measurements: wing, 58 mm.; tail, 50 mm.; weight, 12 gms.