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30 THE CONDOR VoL. XlI 0xyechus vociferus. Killdeer. We saw some the first day out a few miles from Colorado Springs, but no more until we got to Moffat, where we saw some, also at Hooper and Mosca. Killdeer were very common at the lakes and at Medano Ranch, and were also seen at the Durkee Ranch. The next and only other place where they were seen was Westcliffe. Podasocys montanus. Mountain Plover. June 19, a mile or two north of the San Luis Lake, we ran across a pair of Mountain Plover accompanied by at least two young; Durand succeeded in catching one of the latter; it was about half grown, with the feathers just beginning to appear, especially on the wings. July fifth, as we were driving along the road on the east side of the Valley, from the Durkee Ranch to Mosca Creek, we saw a Mountain Plover walking along not far from the road, accompanied by three half grown young. I was watching them with the field glasses when I saw a Horned Lark come up behind the old bird, pass around in front, and face it in a decidedly pugnacious attitude. There was some pretty sparring and threatening for a moment or two, the lark half, spreading its wings and dancing about as if it intended to attack the plover, but the latter kept steadily on her way and finally passed by. I cannot conceive what it was about, unless the lark had a nest or young close by, and feared the plover might harm them. Callipepla 'squamata. Scaled Quail. Seen near Red Cation, not far from Glendale, and a man at Glendale told Aiken they were quite common. On the way home, going north from Pueblo, we saw them near Pition and Buttes stations. Scaled Quail seem to be increasing in this part of the state, and would become abundant if the protective law was more strictly enforced. As it is, the foreign section hands on the railroads kill many, and I suspect that others who are neither foreigners nor section hands help in the good (?) work. Lagopus leucurus. White-tailed Ptarmigan. 'Durand saw two at timberline near the head of Madenos Creek. Zenaidura macroura carolinensis. Mourning Dove. From the time we left Colorado Springs until we returned, there was hardly a day when we did not see Doves, for they were everywhere we went, and very common at some localities. June 21st, at San Luis Lake, I found a nest with a single young bird. This nest was in a greasewood bush, about a foot above the ground. Carthartes aura septentrionalis. Turkey Vulture. A dozen or more were seen roosting in the trees near Beaver Creek, at Glendale. Mr. Aiken said they used to roost there over thirty years ago. Some were seen flying a few miles west of Texas Creek; we saw some several times while at Westcliffe, and saw 3 about halfway between Beulah and Pueblo. Accipiter velox. Sharp-shinned Hawk. Durand saw one in Hardscrabble Cation (our camp was about 7 miles above Wetmore). Accipiter atricapillus. Goshawk. One or more were seen near Mosca, January, 1908. Buteo borealis calurus. Western Red-tail. It is rather strange that we saw this hawk, one of our commpnest species, at but two localities, the upper part of Madenos Creek, and at Salida. While the San Luis Valley itself would not be a particularly good place to find it, we did pass through considerable territory where it should have been seen. Buteo swainsoni. Swainsoh's Hawk. A bird which appeared to be this species was seen near San Luis Lake, and one which I have no doubt about, at Medano Ranch, and one at Mosca Creek. Archibuteo ferrugineus. Ferruginous Rough-leg. One seen at San Luis Lake,