32092 from 7 mi. S, 4 mi. E Bella Union, 7200 ft., June
25, 1952; and [Male] 31614 from 16 mi. W San Antonio de las Alazanas,
6500 ft., January 7, 1954, weight, 90 gms.

This subspecies of the Curve-billed Thrasher occurs in eastern and
southern Coahuila. Amadon and Phillips (1947:578) took a Curve-billed
Thrasher twenty miles west of Saltillo that had an enlarged ovary and a
brood patch still somewhat evident on August 27. Burleigh and Lowery
(1942:199) stated that _T. c. oberholseri_ "was rather widely and
commonly distributed, being noted from the area about the summit of
Diamante Pass at 7,800 feet down to the desert country about Saltillo."
Miller, Friedmann, Griscom, and Moore (1957:177) recorded _T. c.
oberholseri_ from Sabinas, from 8 mi. S Cuatro Cienegas, and from El
Diamante. Hellmayr (1934:298) also recorded _T. c. oberholseri_ from
Sabinas, as did Ridgway (1907:199) under the name _T. c. curvirostre_
before the subspecies _oberholseri_ was named. The female from 4 mi. N
San Isidro had an egg in its oviduct. The immature male (32833), the
large size of ovum (8 mm.) of No. 32092, and the presence of a brood
patch on No. 32091 also are evidences of breeding by the Curve-billed
Thrasher in Coahuila.

*_Toxostoma dorsale dorsale_ Henry.--The Crissal Thrasher is uncommon
in Coahuila. The subspecies _dorsale_ occurs in northern Coahuila.
Miller (1955a:170-171) found the subspecies _dorsale_, at about 4700
feet, only in the mesquite, desert willow, and walnut scrub along the
wash of Boquillas Canyon of the Sierra del Carmen and remarked also
that the bird nested there.

**_Toxostoma dorsale dumosum_ Moore.--_Specimen examined:_ one, sex ?
29559, from 8 mi. N La Ventura, 6000 ft., November 17, 1949, weight,
57.0 gms.

The subspecies _dumosum_ of the Crissal Thrasher in Coahuila has been
reported only from the southeastern section of the State. Burleigh and
Lowery (1942:199-200) found _T. d. dumosum_ "not uncommon in the lower
foot-hills outside of Saltillo as well as on the summit of Diamante
Pass." The specimen of _T. d. dorsale_ from Diamante Pass reported by
Sutton and Burleigh (1939a:37) is closer, according to Burleigh and
Lowery (1942:199), to _T. d. dumosum_. No. 29559 is darker above and
below than typical specimens of _T. d. dorsale_ and represents _T. d.
dumosum_.

_Oreoscoptes montanus_ (Townsend).--_Specimen examined:_ one, sex ?
30237, from 1 mi. SW San Pedro de las Colonias, 3700 ft., February 8