96 
BIRDS OF COLORADO. 
M. Thorne took one at Fort Lyon May ii, and C. F. Morrison 
saw a flock of 30 at Fort Lewis May 17, at an altitude of 8,000 
feet. These records so late in the season, make it not improb- 
able that it may yet be found breeding in the State. It has 
been noted from the plains to 10,000 feet. One was taken at 
Fort Collins as early as October, 1888. 
515. Pinicola enucleator. Pine Grosbeak. 
Resident; not uncommon. Most common in late summer 
and in winter when the bulk are just below timber-line, but 
stragglers descend to the foothills and wander over the plains. 
Capt. P. M. Thorne saw them several times at Fort Lyon and 
G. F. Breninger took one at Fort Collins November 6. They 
breed at timber-line. Trippe found young birds fully feathered 
by June, before the snow was gone, while at 11,500 feet D. D. 
Stone saw a pair feeding young as late as July 25. (O. & O. IX. 
1884, 20.) 
517. Carpodacus purpureus. Purple Finch. 
Migratory; rare, if not accidental. The only certain 
record for Colorado of this eastern species is the following from 
A. W. Anthony, who writes: “I have a female, which I shot 
November 15, 1885, near Denver. It was in company with 
C. frontalis and cassinil' 
518. Carpodacus cassini. Cassin’s Purple Finch. 
Resident; common. Toward the latter part of November 
this western representative of the Purple Finch leaves its breed- 
ing grounds in the mountains and retires to the foothills and 
plains. It is then common in flocks along the western edge of 
the plains and has been taken by Capt. P. M. Thorne as far east 
as Fort Lyon, which is at present the most eastern record of this 
species. A few remain through the winter in some of the 
lower parks up to 7,000 feet, and a large part go south of Colo- 
rado for that season. The last of March or early in April the 
return movement to the mountains begins. This is almost the 
only species in which the summer and winter ranges are com- 
plementary. It winters from the plains to 7,000 feet and breeds 
from 7,000 to 10,000. By May it has worked its way up the 
mountains to its summer home and breeds there the latter half 
of June. Capt. Thorne has taken one at Fort Lyon as late as 
May 28. It was a female with eggs just visible to the naked 
eye. 
519. Carpodacus mexicanus frontalis. House Finch. 
Resident; abundant. Originally described by Say from 
specimens taken near where Canon City now stands. One of 
the most abundant winter birds on the plains along the base of 
