28. Although there are no other records of _P. r.
cooperi_ from northwestern Coahuila, Van Tyne and Sutton (1937:96)
recorded this tanager as a common nesting species in Brewster County,
Texas, in cottonwood, mesquite, or willow trees. I suspect that _P. r.
cooperi_ is a common nesting bird in northwestern Coahuila as well.

Nos. 32828-32831 approach _P. r. rubra_. The measurements of No. 32829
are: wing, 98 mm.; tail, 80 mm.; the measurements of No. 32831 are:
wing, 98 mm.; tail, 79 mm. The specimens of _P. r. cooperi_ from Parras
are somewhat small and seemingly approach _P. r. rubra_. The sizes of
the testes (8x5 mm.; 9x5 mm.) of Nos. 32829 and 32831, respectively,
and the size of the largest ovum (4x4 mm.) of No. 32830 indicate
breeding by this subspecies in southern Coahuila, as does the presence
of No. 32828, a juvenile male.

*_Richmondena cardinalis canicaudus_ (Chapman).--_Specimens examined:_
total 3: [Male] 31099 from 1 mi. N Boquillas, 700 ft., March 8, 1952,
weight, 45.3 gms.; [Male] 32135 from 2 mi. W Jimenez, 850 ft., June 20,
1952; and [Male] 32136 from 2 mi. S, 3 mi. E San Juan de Sabinas, June
22, 1952.

In Coahuila the Cardinal is common. Miller (1955a:174) found it singing
in the Boquillas drainage of the Sierra del Carmen at 4800 feet, and
gave evidence that the Cardinal breeds there. Sutton and Burleigh
(1939a:43) found the species to be common in the low country "east of
Saltillo." Hellmayr (1938:69) recorded _R. c. canicaudus_ from Sabinas.
The sizes of the testes (9 mm.; 7x4 mm.) of Nos. 32135-32136 indicate
breeding by this subspecies in northeastern Coahuila.

*_Pyrrhuloxia sinuata sinuata_ (Bonaparte).--_Specimens examined:_
total 4: [Male] 31100 from 10 mi. S, 5 mi. E Boquillas, 1500 ft., March
4, 1952, weight, 37.3 gms.; [Male] 32137 from 5 mi. N, 19 mi. W Cuatro
Cienegas, 3250 ft., July 5, 1952; [Male] 35403 (skeleton only) from San
Marcos, May 5, 1954; and [Male] 30234 from 3 mi. SE Torreon, 3800 ft.,
January 12, 1951.

In Coahuila, the Pyrrhuloxia is common. Hellmayr (1938:76) listed it
from Sabinas. Ridgway (1901:628) recorded _P. s. texana_ (=_sinuata_)
from La Ventura. Burleigh and Lowery (1942:206) found the species "only
in the open desert country west of Saltillo where, on April 22, several
pairs were seen in a small arroyo." Amadon and Phillips (1947:579) took
an immature _P. s. sinuata_ at Las Delicias; Sutton and Burleigh
(1939a:43-44) found this subspecies fairly common i