BIRDS OF COLORADO. IO5 



known to breed in the State, which is somewhat strange con- 

 sidering how far south it breeds in the mountains of eastern 

 United States. 



567b. Junco hyemalisconnectens. Shufeldt's Junco. 



Winter resident; abundant. Great numbers winter in 

 southern Colorado, where F. M. Drew says that they appear 

 first at timber line in September; later, stragglers comedown 

 and mix with caniceps and by October have taken full possess- 

 ion. When severe winter weather begins they pass lower 

 down. (B. N. O. C. VI. 1881, 138.) They remain in numbers 

 throughout the winter as far north as central Colorado, and are 

 not an uncommon winter resident nearly to the northern 

 boundary. Very common in migration during November and 

 April. Extend eastward to Kansas. 



568. Junco mearnsi. Pink-sided Junco. 



Winter resident; common. In middle Colorado, during 

 the winter, one of the most common Juncos, especially on the 

 plains at the base of the foothills. Arrives rather late in the 

 fall, and is most numerous during the spring migration. At 

 this latter season it is principally a bird of the mountains from 

 6,000 to 10,000 feet. The period of greatest numbers is about 

 the first of April. The last of the migrating Juncos to leave, 

 remaining until the last of April. Aiken once saw females in 

 El Paso County as late as May 4. Extends east on the plains 

 as far as Fort Lyon, where it has been taken by Capt. P. M. 

 Thorne. 



568. I. Junco annectens. Ridgway's Junco. 



Winter visitant ; rare. One was taken by R. C. McGregor 

 at Boulder November 25, 1892, associated with mearnsi^ cani- 

 ceps^ aikeni, and connectens. (Auk, X. 1893, 205.) 



569. Junco caniceps. Gray-headed Junco. 



Resident; abundant. The only Junco at present known 

 to breed in Colorado. The bulk winter south of the State, but 

 a few remain on the plains and the lowest valleys of the mount- 

 ains from November to April. In southwestern Colorado F. M. 

 Drew says that they are very abundant in summer from 7,500 

 to 12,000 feet, raising two and perhaps three broods. Large 

 young out of the nest taken June 26, and nest with fresh eggs a 

 month later; young birds September 25. The commonest 

 summer bird, taking the place of the Chippy of the east. 

 Leave the first of November just as oregonus \_— connectens] be- 

 comes plentiful. (B. N. O. C. VI. i88r, 138.) Farther north, 

 in Clear Creek County, where it does not winter, T. M. Trippe, 

 in "Birds of the Northwest," says that it arrives the middle or 



