ows 2 mi. S and 11 mi. E Nava, 810 feet, on June 15, 1952.
Dickerman observed them at San Marcos (=20 mi. S Cuatro Cienegas) on
May 4, 1954.

*_Petrochelidon pyrrhonota minima_ van Rossem and
Hachisuka.--_Specimens examined:_ total 2: [Male] [Male] 31585-31586
from 14 mi. W San Antonio de las Alazanas, April 9, 1954.

Burleigh and Lowery (1942:196) noted the Cliff Swallow "in small
numbers about Saltillo and the nearby villages" where the species
"showed evidence of beginning to nest in many of the houses...." They
(_loc. cit._) found Cliff Swallows also at the Chorro del Agua and
Diamante Valley. According to Dickerman, Nos. 31585-31586 were from a
colony, members of which were collecting mud at a stock tank.

*_Petrochelidon fulva pallida_ Nelson.--The Cave Swallow seems to be
uncommon in eastern Coahuila. Selander and Baker (1957:345) list
Saltillo, Sabinas, and Monclova as the three known localities for this
swallow in the State.

*_Progne subis subis_ (Linnaeus).--Miller, Friedmann, Griscom, and
Moore (1957:107) reported, presumably on the basis of a published
record not found by me, that the Purple Martin breeds in Coahuila.

**_Progne chalybea chalybea_ (Gmelin).--The only record of the
Gray-breasted Martin in Coahuila was given by Ridgway (1904:42) when he
listed _P. c. chalybea_ from Sabinas.

**_Cyanocitta stelleri macrolopha_ Baird.--_Specimens examined:_ total
2: [Male] 32788 and [Female] 32787 from 13 mi. E San Antonio de las
Alazanas, 9950 ft., July 6, 1955.

From the paucity of records in the literature, I judge that Steller's
Jay is uncommon in Coahuila. Nos. 32787-32788 seemingly represent the
first records of this species in the State, and are referred to the
subspecies _macrolopha_ on the basis of relatively long (150, 151 mm.)
wing, near the maximum for _stelleri_ from Mexico. The date (July 6) of
collection suggests that these birds were resident in southeastern
Coahuila.

**_Aphelocoma coerulescens cyanotis_ Ridgway.--The Scrub Jay is common
in southeastern Coahuila. Burleigh and Lowery (1942:196) noted this
species in small numbers at the summit of Diamante Pass, daily on the
lower slopes of the mountains, and a few birds "on the outskirts of
Saltillo, where they were probably nesting...." Sutton and Burleigh
(1939a:35) also noted several flocks at Diamante Pass. Miller,
Friedmann, Griscom, and Moore (1957:123) reported _A. c. cyanotis_ from
El Diamante. Ridgway (1904:335) listed this su