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160 THE CONDOR VOL. "June 6, 1901. At Kearsarge Pass, above Kings River, 12,000 feet altitude, I noted several small groups of these birds. They were twittering and would hop along now on 'the rocks and now on the snow. They probably had nests in the lofty rock wall. On the snow they would hop along in a zigzag line for a few feet and then fly for a few yards. The flight was fluttering like that of a Bluebird. "June 7, 1901. Found some Leucostictes on the top of University Peak, 14,000 feet. One' on a rock would twitter, vibrating his wings in accompaniment. They were curious and came close to us on the rocks and then fluttered off. July 15, 1901. At the junction of East and Bubb's Creeks, above the south fork of King's River, the adjacent snow having melted, I saw a flock at this un- 17ig. 54. NEST AND FULL SET OF EGGS OF THE GRAY-CROWNED LEUeOSTIeTE AFTER REMOVAL FROM NEST SITE. NOTE THAT THE EGGS ARE UNMARKT usually low altitude of 9000 feet, and for the first time saw one of them perch on the top of a tamarack tree, the other birds of the flock remaining in the grass. The note resembled 'chea'. "July 16, 1901. Noted many on the side and top of Mt. Brewer. One flew out from some rocks at the side of the peak as if it had a nest in between the rocks; but I could not locate it. "July 17, 1901. Observed some percht on the ice floating in the lakes near Harrison's Pass, southeast of Mt. Brewer. One would raise and drop his wings and with tail held up would make a note like that of a little chicken. One at-