63) heard several Roadrunners calling at Boquillas
Canyon in the Sierra del Carmen, where he obtained two females.
Burleigh and Lowery (1942:190) stated that the species proved to be
"unexpectedly scarce" and was noted but once by them on April 22 when a
single bird was observed in "the open desert west of Saltillo." Sutton
and Burleigh (1939a:30) noted that the Roadrunner was not common
anywhere in southern Coahuila; they obtained one female at San Pedro on
January 29. The size of the largest ovum (15 mm. in diameter) of No.
32040 indicates that this species breeds in Coahuila.

*_Crotophaga sulcirostris sulcirostris_ Swainson.--_Specimen examined:_
one, [Female] 32039, from 2 mi. S, 3 mi. E San Juan de Sabinas, June
22, 1952.

No. 32039, obtained by Harrison B. Tordoff in a cypress woods along the
shore of a lagoon, provides the first record of the Groove-billed Ani
in Coahuila. The size of its largest ovum (10 mm. in diameter) and the
date indicate breeding by this species in Coahuila.

**_Tyto alba pratincola_ (Bonaparte).--The Barn Owl seems to be
uncommon in Coahuila. To my knowledge, there are two records of the
Barn Owl in Coahuila. Ridgway (1914:607) recorded this owl at the "head
of Las Vacas Creek." Miller (1955a:163) heard the Barn Owl at 5000 feet
in the oak belt on April 25 in the Sierra del Carmen.

*_Otus asio suttoni_ Moore.--_O. a. suttoni_ is found in the higher
country of the Sierra del Carmen and western Coahuila. Miller
(1955a:163) stated that Screech Owls were common in groves of oaks both
at 7000 feet and 5000 feet in the Sierra del Carmen, and remarked that
his series from the Sierra del Carmen matched well a series of
_suttoni_ from Chihuahua and Durango. Miller (1955a:163-164) also
stated that Marsh took an adult at Jardin del Sur on August 28 and said
that the specimen from the Sierra del Carmen referred to as
_cineraceus_ by Marsh and Stevenson (1938:286) agreed well with his
series of _suttoni_. _O. a. suttoni_ probably occurs no farther east
than the Sierra del Carmen.

**_Otus asio mccallii_ (Cassin).--_Specimens examined:_ total 2: [Male]
32041 from 2 mi. W Jimenez, 850 ft., June 20, 1952; and sex ? 31645
from La Gacha, 1600 ft., December 9, 1953.

Three subspecies of the Screech Owl, _Otus asio_, occur in northeastern
Mexico; two of these, _suttoni_ and _mccallii_, occur in Coahuila, the
latter in the eastern part. The third subspecies, _O. a. semplei_,
occurs still farther east,