96 BIRDS OF COLORADO. 



M. Thorne took one at Fort Lyon May 11, and C. F. Morrison 

 saw a flock of 30 at Fort I,ewis 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. Purpi^e 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 cassini." 



518. Carpodacus cassini. Cassin's PiJrple 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 tlie 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 



