90, from 20 mi. S Ocampo, 7000 ft., April 5, 1954, weight, 10
gms.

The Colima Warbler is common locally in Coahuila. Burleigh and Lowery
(1942:203) found this species fairly common on the steep, rugged slopes
above the summit of Diamante Pass and saw none below an elevation of
approximately 7500 feet. Bangs (1925:251) stated that Nelson and
Goldman secured a specimen of the Colima Warbler at Sierra Guadalupe on
April 25.

*_Vermivora superciliosa mexicana_ (Bonaparte).--_Specimen examined:_
one, [Male] 31591, from 13 mi. E San Antonio de las Alazanas, 9350 ft.,
April 10, 1954.

Hartlaub's Warbler is uncommon in Coahuila and seems to occur only in
the southeastern section of the State; No. 31591 is the first record of
the species in Coahuila. The size of the testes (5x2 mm.) of No. 31591
and the fact that the bird was singing when first seen suggest the
possibility that _V. s. mexicana_ breeds in southeastern Coahuila.
Breeding there is not unexpected because the species has been found
breeding in Nuevo Leon (Miller, Friedmann, Griscom, and Moore,
1957:242).

_Parula americana_ (Linnaeus).--Miller (1955a:172) obtained a migrant
Parula Warbler in an oak grove at 7000 feet on April 16 in the Sierra
del Carmen, and remarked that it was "apparently the first record of
this species in Coahuila."

*_Parula pitiayumi nigrilora_ Coues.--The AOU Check-list Committee
(1957:486) recorded this subspecies of the Olive-backed Warbler as a
resident at Sabinas.

*_Peucedramus taeniatus arizonae_ Miller and Griscom.--This subspecies
of the Olive Warbler is locally common in Coahuila. Miller (1955a:172)
found _P. t. arizonae_ common in the pine timber above 6800 feet in the
Sierra del Carmen and suggested that this warbler breeds in these
mountains. Burleigh and Lowery (1942:203) found the Olive Warbler in a
thick pine wood at an elevation of 9500 to 10,000 feet and remarked
that this species was "decidedly uncommon in the Diamante Pass area."
They (_loc. cit._) obtained a female (not identified to subspecies) on
April 23 that had a "well developed brood patch and was unquestionably
incubating eggs." Sutton and Burleigh (1939a:40) took a single female
at Diamante Pass on March 6 which also was not identified to
subspecies. Dickerman saw Olive Warblers in the Sierra de la Madera on
December 13, 1953, and 13 mi. E San Antonio de las Alazanas on April
10, 1954.

_Dendroica petechia morcomi_ Coale.--Miller, Friedmann, Griscom, and