_Melospiza georgiana ericrypta_ Oberholser.--In Coahuila this
subspecies of the Swamp Sparrow has been recorded as a migrant or
winter visitant. Miller, Friedmann, Griscom, and Moore (1957:399)
recorded it from Sabinas on February 22 to March 8 and from 8 mi. S
Cuatro Cienegas on November 4.

LITERATURE CITED

ALDRICH, J. W., and DUVALL, A. J.
1955. Distribution of American gallinaceous game birds. U.S. Dept.
Int., Fish and Wildlife Ser., Circular 34:ii+30 pp.

AMADON, D., and PHILLIPS, A. R.
1947. Notes on Mexican birds. Auk, 64:576-581, October.

AMERICAN ORNITHOLOGISTS' UNION CHECK-LIST COMMITTEE
1957. Check-list of North American birds. 5th ed. xiv+691 pp.

BAIRD, S. F.
1858. Reports of explorations and surveys for a railroad route from
the Mississippi River to the Pacific Ocean. 9(pt.
II--Birds):lvi+1005 pp.

BAKER, R. H.
1956. Mammals of Coahuila, Mexico. Univ. Kansas Publ., Mus. Nat.
Hist., 9:125-335, June 15.

BANGS, O.
1898. Some new races of birds from eastern North America. Auk,
15:173-183, April.

1925. The history and characters of _Vermivora crissalis_
(Salvin and Godman). Auk, 42:251-253, April.

BLAKE, E. R.
1953. Birds of Mexico. Univ. Chicago Press, Chicago, xxx+644 pp.

BRODKORB, P.
1935. A new flycatcher from Texas. Occas. Papers Mus. Zool., Univ.
Michigan, 306:1-3, January 30.

BURLEIGH, T. D., and LOWERY, G. H., JR.
1942. Notes on the birds of southeastern Coahuila. Occas. Papers Mus.
Zool., Louisiana State Univ., 12:185-212, March 4.

CORY, C. B.
1919. Catalogue of birds of the Americas. Field Mus. Nat. Hist.
(Publ. 203), Zool. Ser., 13 (Pt. II, no. 2):317-607, December
31.

CORY, C. B., and HELLMAYR, C. E.
1927. Catalogue of birds of the Americas and the adjacent islands.
Field Mus. Nat. Hist. (Publ. 242), Zool. Ser., 13(Pt. V):vi+517
pp., April 11.

DAVIS, J.
1951. Distribution and variation of the Brown Towhees. Univ.
California Publ. Zool., 52:1-120, October 30.

DIXON, K. L.
1955. An ecological analysis of the interbreeding of Crested Titmice
in Texas. Univ. California Publ. Zool., 54:125-206, December 8.

EVENDEN, F. G., JR.
1952. Notes on Mexican bird distribution. Wilson Bull., 64:112-113,
June.

FRIEDMANN, H.
1950. The birds of North and Middle America. U.S. Nat. Mus., Bull.
50(Pt. XI):xiv+