nn, Griscom, and Moore
(1950:44) listed the Bufflehead from the State.]

*_Cathartes aura aura_ (Linnaeus).--_Specimen examined:_ one, [Male]
31017 (skeleton only), from 4 mi. W Hacienda La Mariposa, 2300 ft.,
March 26, 1952.

Miller (1955a:161) took a female Turkey Vulture, which was in breeding
condition, in the Sierra del Carmen on April 17 and stated that "until
more statistics are available on breeding birds of northern Coahuila,
they must be considered _C. a. aura_...." Amadon and Phillips
(1947:577) took a Turkey Vulture at Las Delicias which represented _C.
a. aura_. Burleigh and Lowery (1942:188) stated that this species was
not uncommon, and was noted each day soaring overhead both in the
valleys and over the tops of the ridges of southeastern Coahuila.

Friedmann, Griscom, and Moore (1950:47) listed _C. a. teter_ from
Coahuila. Miller (1955a:161) remarked that the subspecies _aura_ and
_teter_ might intergrade in the Sierra del Carmen. At the present time
it is possible to say only that _teter_ is present in Coahuila in
migrant and wintering populations, but the extent to which _teter_
remains in northeastern Mexico is undetermined. However, all
indications point to this area as being the region where _aura_ and
_teter_ intergrade.

**_Coragyps atratus_ (Bechstein).--The Black Vulture is locally common
throughout most of eastern Coahuila but is uncommon in the western part
of the State. Sutton and Burleigh (1939a:25) noted the Black Vulture
"regularly east of Saltillo in low country," but did not see Black
Vultures at San Pedro or elsewhere in southwestern Coahuila. Burleigh
and Lowery (1942:188) stated that "the Black Vulture apparently avoids
to a large extent the higher altitudes, and only rarely was it observed
at all, even about Saltillo." Olmstead saw Black Vultures 8 mi. N and 4
mi. W Muzquiz, 1800 feet, on March 31, 1952, and Dickerman observed a
flock at La Gacha (=Rancho La Coucha), 1600 feet, on December 2, 1953.

**_Accipiter gentilis_ (Linnaeus).--On July 6, 1955, Hardy saw a
Goshawk 13 mi. E San Antonio de las Alazanas; this is the first record
of occurrence of this species from northeastern Mexico.

*_Accipiter striatus velox_ (Wilson).--_Specimen examined:_ one,
[Female] 31018, from along the Rio Grande (=Boquillas), 700 ft., March
10, 1952, measurements: wing, 207 mm.; tail, 171 mm.; tarsus, 53 mm.;
culmen, 12 mm.

Our specimen of the Sharp-shinned Hawk is referred to _velox_ on the