On April 5, 7, and 21, Miller (1955a:175) recorded winter visitant or
vagrant flocks of Pine Siskins in the Sierra del Carmen. Miller,
Friedmann, Griscom, and Moore (1957:318) listed _S. p. pinus_ south to
Sierra Guadalupe. Dickerman saw Pine Siskins 13 mi. E San Antonio de
las Alazanas on April 10, 1954.
_Spinus pinus macropterus_ (Bonaparte).--Miller, Friedmann, Griscom,
and Moore (1957:319) recorded a vagrant _S. p. macropterus_ from 50 mi.
S Monclova, 2850 feet, on November 9.
_Spinus tristis pallidus_ Mearns.--_Specimen examined:_ one, [Female]
31101, from Fortin (=33 mi. N, 8 mi. W San Geronimo), 3300 ft., March
28, 1952, weight, 11.5 gms.
The American Goldfinch is an uncommon migrant or winter visitant in
Coahuila. Hellmayr (1938:296) recorded _S. t. pallidus_ from Sabinas.
Fortin and Sabinas are the only places in Coahuila where _S. t.
pallidus_ has been collected. No. 31101 is a typical representative of
_S. t. pallidus_.
**_Spinus psaltria psaltria_ (Say).--_Specimens examined:_ total 7:
[Male] [Male] 32148-32149 and [Female] 32151 from 12 mi. N, 12 mi. W
Jimenez, 850 ft., June 19, 1952; [Male] 32150 from 2 mi. W Jimenez,
June 20, 1952; [Male] 33220 (skeleton only) from Parras, July 4, 1955;
and [Male] 32939 and [Female] 32940 from Mesa de las Tablas, July 7,
1955, weights, 9.5, 11 gms.
In Coahuila, the Lesser Goldfinch seems to be common. Although Miller
(1955a:175) did not find it in the Sierra del Carmen, he reported that
Marsh took a specimen on August 22 in Chuperosa Canyon that was
"presumed to" be _S. p. psaltria_. Burleigh and Lowery (1942:206)
observed the Lesser Goldfinch "on the outskirts of Saltillo in an
orchard on April 20."
Nos. 32148-32151 and 32940 were typical for the subspecies _psaltria_.
A partial albino (32939), which was obtained from a pine-oak-wheat
field edge, has upper parts that lack the black coloring of typical
representatives of _S. p. psaltria_. Instead the crown and back of No.
32939 is yellow, resembling the color of its underparts, the wing
coverts are white, and its primaries are black with white edgings.
*_Atlapetes pileatus dilutus_ Ridgway.--_Specimens examined:_ total 2:
[Male] 32942 and [Female] 32943 from 13 mi. E San Antonio de las
Alazanas, 9950 ft., July 6, 1955.
The Rufous-capped Atlapetes occurs uncommonly in southeastern Coahuila.
The male and female _A. p. dilutus_ from 13 mi. E San Antonio de las
Alazanas represent the first records of occurrence of this subspecies
in the State. The smaller size, grayer upper parts, and pale yellow
color of the underparts of Nos. 32942-32943 characterize the subspecies
_dilutus_. The size of the testes (7x6 mm.) of No. 32942 and the date
(July 6) on which both specimens were collected indicate breeding by
this species in Coahuila.
*_Arremonops rufivirgata rufivirgata_ (Lawrence).--_Specimens
examined:_ total 2: [Male] 32152 and [Female] 32153 from 2 mi. S, 3 mi.
E San Juan de Sabinas, June 22 and 23, 1952.
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