38 
THE CONDOR 
Vol. XII 
Springs the first day out; near Texas Creek; at Coaldale; north of Villa Grove, 
between that place and Moffat, at Hooper, Mosca, San Luis Lake, Medano Ranch, 
and Westcliffe. 
Tachycineta thalassina lepida. Violet-green Swallow. Seen practically every- 
where we went between Parkdale and Beulah, and everything considered the most 
abundant of the swallows. At Querida, July 30, the swallows were beginning to 
gather in flocks. At Mosca Creek, birds of this species were seen entering old 
woodpecker’s holes in aspen trees, and no doubt had nests there, as they often use 
them. 
Lanius borealis. Northern Shrike. One seen at Mosca, January 19, 1908. 
Lanius ludovicianus excubitorides. White-rumped Shrike. Seen quite com- 
monly from a little above Moffat to Mosca; it was at San Luis Lake, where Durand 
saw 2 /i grown young June 20, and was also at Medano Ranch. Seen at Westcliffe, 
near Beulah, and between Pueblo and Buttes station. 
Vireosylva gilva swainsoni. Western Warbling Vireo. Taken at Van Andert’s 
Spring, Glendale, Howard, Durkee Ranch, and seen at Mosca Creek. 
Dendroica aestiva. Yellow Warbler. Seen at Glendale, near Cotopaxi, 
Howard, Poncha Springs, Villa Grove, and at Durkee Ranch. 
Dendroica auduboni. Audubon’s Warbler. Taken near Poncha Pass, seen on 
Madenos Creek, and on Muddy Creek. A female seen on Madenos Creek, at about 
10,000 feet elevation, July 11, acted in a very disturbed manner, as if she had a 
nest or young, but I could find neither. 
Oporornis tolmiei. MacGillivray’s Warbler. Durand took one at Mosca Creek. 
Geothlypis trichas occidentalis. Western Yellowthroat. Seen at Glendale; 
Yellowthroats were rather common among the cat-tails at one of the small lakes at 
the Medano Ranch. 
Icteria virens longicauda. Long-tailed Chat. Several seen at Glendale. 
Anthus rubescens. Pipit. One was taken at Durand on a high mountain at 
the head of Madenos Creek; I also saw one in the same general locality. 
Cinclus mexicanus unicolor. Water Ouzel. Seen on Madenos Creek, and in 
Hardscrabble Canon. 
Oroscoptes montanus. Sage Thrasher. A very common bird all through that 
part of the San Luis Valley visited by me; two were seen about two miles north of 
Muddy Creek, in Huerfano County; they were very common at Westcliffe, where 
family parties were seen the last of July; one was taken, others seen, about ten 
miles west of Pueblo. Immediately after we made camp at the Medano Ranch I 
discovered a nest containing three newly hatched young, and an egg, which had 
disappeared the next day. This nest was in a greasewood bush. I watched it 
closely, intending to take some photographs as soon as the young were large 
enough, and the morning of July 4, knowing I was going to leave next day, went 
to see if everything was all right, intending to take the pictures at once, but there 
was only a single dead, much bedraggled young bird there, and I could find no 
trace of the other two. It had rained very hard the night before, but though this 
might account for the death, it does not account for the missing. The next morn- 
ing, July 5, I found about halfway between the Medano and Durkee Rauches a nest 
containing four eggs, about which the parents were very anxious, so I think it 
probable incubation was nearly complete. This was in rabbit brush about a foot 
above the ground, the other nest having been three feet from the ground. 
Mimus polyglottos leucopterus. Western Mockingbird. Seen between Glen- 
dale and Canon City; near Copper Gulch; at Hooper, San Luis Lake, about half 
