little fat.

_Ammodramus bairdii_ (Audubon).--Miller, Friedmann, Griscom, and Moore
(1957:368) remarked that Baird's Sparrow is a rare winter visitant to
the northern states of Mexico and recorded _A. bairdii_ from Saltillo
on May 8.

_Pooecetes gramineus confinis_ Baird.--The Vesper Sparrow seems to be
an uncommon winter visitant in Coahuila. Miller (1955a:176) found _P.
g. confinis_ "on two occasions in the grass of the dry cienega at the
head of Corte Madera Canyon at 7500 feet" on April 9 and 14 in the
Sierra del Carmen. In April, Burleigh and Lowery (1942:208) found _P.
g. confinis_ only in Diamante Valley where this sparrow "appeared to be
quite uncommon." Sutton and Burleigh (1939a:45) took a male _P. g.
confinis_ at San Pedro on January 29.

*_Chondestes grammacus strigatus_ Swainson.--_Specimen examined:_ one,
[Male] 32156, from 8 mi. N, 2 mi. W Piedras Negras, June 18, 1952.

The Lark Sparrow is not uncommon in Coahuila. Miller (1955a:176) saw
one male, "apparently on a breeding territory, on April 27 in an open,
rather barren desert flat adjoining the lower part of Boquillas wash at
4600 feet." He reported that Marsh took a young of the year, still
largely in juvenile plumage, on September 6 in the Sierra del Carmen.
Amadon and Phillips (1947:580) remarked that Lark Sparrows were common
"about Las Delicias" after August 18. Findley saw Lark Sparrows 2 mi. W
Jimenez on June 19, 1952, and 2 mi. S and 11 mi. E Nava on June 15,
1952. Dickerman saw Lark Sparrows at San Marcos on May 4, 1954. The
pale and narrowly streaked upperparts of No. 32156 are typical for _C.
g. strigatus_. The size of the testes (9x4 mm.) of No. 32156 and the
date (June 18) on which it was obtained suggest breeding by the Lark
Sparrow in northeastern Coahuila.

*_Aimophila ruficeps tenuirostris_ Burleigh and Lowery.--This
subspecies of the Rufous-crowned Sparrow is resident in the northern
part of Coahuila. Miller (1955a:176) remarked that the species "ranged
up to 7000 feet on open south-facing slopes within the oak belt" of the
Sierra del Carmen. Specimens collected by him showed no approach to
_boucardi_ of southern Mexico and seem to be closest to _tenuirostris_.
Miller referred the specimen that Marsh and Stevenson (1938:287) took
on August 22 in Chuperosa Canyon to _tenuirostris_ rather than
_boucardi_. Miller, Friedmann, Griscom, and Moore (1957:376) listed _A.
r. tenuirostris_ from 50 mi. S Monclova on November 8 and 10.

*_A