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Mar., 1915 SOME PARK COUNTY, COLORADO, BIRD NOTES on one side of its head, with just a trifle of white at its edge. One bird was seen September 26, on Buckskin l?idge, at between 11,500 and 12,000 feet. l?pizen?. passerin?. arizonae. Western Chipping Sparrow. An immature bird collected near Fairplay September 19, and two adults seen in Mosquito Gulch September 25. Junto byemalls mearn?i. Pink-sided Junco. First identified September 27, when one was collected along the South Platte near Alma, and one or two others were seen. One was seen on Mr. Bross the next day at about 11,000 feet. I was of the opinion that they had arrived two or three days previously, as on September 25 I saw in Mosquito Gulch a large, restless flock of Juneos in thick brush. The few identified were all the next species, but I had not seen Juneos in such a large flock before that day. Junco phaeonotus caniceps. Gray-headed Junco. Seen on Beaver Creek and on Mt. Silverheels. Observed almost daily in country about Alma. The greatest elevation at which the species was seen was about 11,500 feet on Sil- verheels. Melo?pi?. melodic. mont,?n?.. Mountain Song Sparrow. One seen in wil- lows on Beaver Creek, at about 10,000 feet, September 18. Dendroica auduboni auduboni. Audubon Warbler. Seen in Buckskin and Mosquito gulches, ' September 22, 23, and 25. A flock of 12 or 15 was seen on the 23rd, which appeared to be all females or immature birds. Wilsonia pnsilla pileolata. Pileolated Warbler. Seen in Buckskin and Mosquito gulches, September 22, 23, and 24, up to 10,500 feet. Only single birds seen. One seen on the first date was in company with Chickadees and at least one Ruby-crowned Kinglet. Allen's list includes these two warblers. Possibly they are the only species of warbler breeding in the region. Cinclus mexicanus unicolor. Water Ouzel. I fully expected to find this species along all the streams in the region, but saw only one individual, on the South Platte above Alma, September 27. Troglodytes aedon parkmani. Western House Wren. One was collected September 22 in Buckskin Gulch about a mile above Alma. It was about some low cinquefoil bushes in a meadow where I was setting traps, keeping close among the bushes and stirring about but little. I am quite positive I saw one farther up the gulch the day before. Penthestes gainbell. Mountain Chickadee. I saw but a few Chickadees, first on Mt. Silverheels and along Beaver Creek, and later in Buckskin Gulch and on Mr. Bross. Regulus calendula calendula. Ruby-crowned Kinglet. Seen on Beaver Creek and in Buckskin Gulch. Two were collected. Myadestes townsendi. Townsend Solitaire. Seen on but one occasion, between Fairplay and Alma, September 20, Planesticus migratorius propinquus. Western Robin. One or two Robins were seen on Beaver Creek, September 18, and noted on several different days near Alma; last on 29th, when several were seen. Sialia currucoides. Mountain Bluebird. Seen at timber-line on Silver- heels, September 18; at Fairplay on the 19th. Observed on several different days about Alma, and in Buckskin and Mosquito gulches, and on Mr. Bross, up to 11,500 feet. Also noted from the train at different points in the South Park. Colorado Springs, Colorado, December 9, 1914.