"^1914 ] ^ocKWEhL anbWetmore, Birds of Golden, Colorado. 325 



condition of their plumage. The only note given was a low " tsip." They 

 undoubtedly occur regularly but this was the only time we observed them. 



61. Junco aikeni. White-winged Junco. — Common in the late 

 fall but only seen once in the spring. Two specimens were taken April 11 

 at an altitude of 7500 feet and the bird was not found again until October 

 24. Several were taken on this date and on November 7 they were as 

 common as any of the other JXincos. In actions they were similar to the 

 other Juncos but in mixed flocks they could usually be distinguished by 

 their large size. On one occasion we saw them " fly-catching " after 

 insects, from a thicket of plum brush. Some of the immature females in 

 the present series have merely a trace of the white wing bars, but can be 

 readily distinguished from hyemalis by their large size. 



62. Junco hyemalis hyemalis. Slate-colored Junco. — Speci- 

 mens were taken April 11 at Golden, and April 14 at Morrison, but we can 

 say nothing more concerning the status of this bird. None were observed 

 with certainty in the fall. 



63. Junco hyemalis connectens. Shufeldt'.s Junco. — Winter 

 resident and common migrant. From April 11 to 14 appeared to be the 

 height of the spring migration, and most of the birds were found along the 

 edge of the foothills. After the latter date they were not found again 

 until October 24, while on November 7 they were common with the other 

 Juncos in large mixed flocks and were working back into the foothills. 



64. Junco hyemalis montanus. Montana Junco. — This should 

 be a regular winter resident but in rather a large series of Juncos there are 

 only two specimens. One taken April 25 which is hardly typical (being 

 near true hyemalis) and one October 10. 



65. Junco hyemalis mearnsi. Pink-sided Junco. — This was the 

 common Junco of the region and was found in the spring up to May 2, 

 much later than any other of the migrant varieties of the same genus. 

 The first fall specimen was taken October 2, and by the tenth of the month 

 they were common again. These birds had the habits common to the genus 

 so that no mention need be made of them here. They were found from the 

 plains to the highest points in the region. There are four specimens that 

 appear to show hybridization with J. aikeni, as in all there are present 

 quite well defined wing bars, though otherwise the birds are similar to true 

 mearnsi. These are all immature males taken in October and November. 

 One has been examined by Mr. H. C. Oberholser, who has confii-med the 

 identification as J. h. mearnsi X J- aikeni. It may be stated here that 

 there are two specimens in the Colorado Museum of Natural History in 

 Denver and one other in the collection of the State Normal School at 

 Greeley, Colorado, which show the same characteristics. 



66. Junco phaeonotus caniceps. Gray-headed Junco. — Com- 

 mon summer resident down to 7500 feet. During the migration found 

 down to the plains. The first one was taken April 14 below Morrison, and 

 they were common up to the first of June when all were found in pairs at 

 7500 feet. They were ready to breed and frequented the thickets of 



