10, 1954; [Female] 33226 (skeleton only) from 13 mi. E
San Antonio de las Alazanas, 9950 ft., July 6, 1955; and [Male] 31633
from Mesa de Tablas, 8600 ft., January 16, 1954, weight, 22 gms.

In Coahuila the Mexican Junco seems to be common. Miller (1955a:177)
found it in the conifers of the upper Corte Madera drainage at 7500
feet and up to 8800 feet on Loomis Peak in the Sierra del Carmen. Marsh
and Stevenson (1938:287) took an adult in Vivoras Canyon on August 14
in the Sierra del Carmen. Sutton and Burleigh (1939a:46) found small
flocks at Diamante Pass in March. Burleigh and Lowery (1942:208-209)
noted _J. p. palliatus_ as a common bird of the mountain slopes above
an elevation of about 7000 feet in southeastern Coahuila, and obtained
specimens at Diamante Pass. Ridgway (1901:300) recorded _J. p.
phaeonotus_ from Sierra Encarnacion. His record should be of _J. p.
palliatus_ as indicated by Miller, Friedmann, Griscom, and Moore
(1957:386). Dickerman saw Mexican Juncos in the Sierra de la Madera on
December 13, 1953.

No. 31633 shows no sign of intergrading with _J. p. phaeonotus_ to the
south. The outermost rectrix of No. 31633 is wholly white; the second
rectrix is nearly as white. No. 31633 is paler than representatives of
_J. p. phaeonotus_ from the southern part of the Central Plateau of
Mexico.

_Spizella passerina arizonae_ Coues.--_Specimens examined:_ total 4:
[Male] 31110 from the Rio Grande (=17 mi. S Dryden, Terrell Co., Texas,
in Coahuila), 600 ft., March 18, 1952, weight, 10.7 gms. [Male] 31111
and [Female] 31112 from 4 mi. W Hacienda La Mariposa, 2300 ft., March
24, 1952, weights, 11.0, 11.7 gms.; and [Male] 31666 from the north
foot of Sierra Guadalupe (=10 mi. S, 5 mi. W General Cepeda), 6400 ft.,
April 19, 1953, weight, 14.0 gms.

The Chipping Sparrow is a common spring and possibly fall migrant in
Coahuila. Miller (1955a:177) noted small flocks from April 21 to 27 in
the Sierra del Carmen where specimens were taken. Burleigh and Lowery
(1942:209) indicated that _S. p. arizonae_ was "quite common and of
general distribution" at Saltillo and Diamante Pass and remarked that
specimens were taken at these localities in April. Amadon and Phillips
(1947:581) took two Chipping Sparrows "near Las Delicias on August 17."
Dickerman saw individuals in the Sierra del Pino on May 12, 1954, and
at San Marcos on May 4, 1954. Our specimens, which are typical
representatives of _S. p. arizonae_, are pale; the gro