150 THE CONDOR | Vol. V 
Tachycineta bicolor. White-bellied Swallow. Found in numbers in the 
Dragoon mountains May 4. No specimens taken. 
Stelgidopteryx serripennis. Rough-winged Swallow. Several swallows sup- 
posed to be this species were seen April 8. 
Lanius ludovicianus excubitorides. White-rumped Shrike. Abundant; frequently 
seen perched on the topmost twig of a mesquite. Several sets of five eggs were 
taken in April from nests a few feet above the ground in mesquite and catclaw 
bushes. 
Vireo gilvus. Warbling Vireo. Quite common after May 3 when the first 
was taken. 
Helminthophila celata lutescens, Rutescent Warbler. One taken in the 
Dragoon mountains May 4. 
Dendroica auduboni. Audubon Warbler. Seen occasionally through the 
winter and spring. Several were taken. 
Dendroica nigrescens. Black-throated Gray-Warbler. Several were seen in 
the cottonwoods near the ranch, x^pril 15. Rater they were seen in the brush and 
May 4 a number were taken in the Dragoon mountains. 
Dendroica townsendi. Townsend Warbler. Five specimens were taken in 
the Dragoon mountains May 4. " 
Dendroica occidentalis. Hermit Warbler. Taken in the Dragoon mountains 
May 4. 
Geothlypis tolmiei. MacGillivray Warbler. Taken near the house at 
Allaire’s May 3. Rater it became common in the brush and in the Dragoon 
mountains where several were taken. 
Geothlypis trichas occidentalis. We.stern Yellowthroat. One taken March 16, 
occasionally seen later. 
Wilsonia pusilla pileolata. Pileolated Warbler. Seen in the cottonwoods near 
the house April 15. Rater it became the most common warbler. 
Anthus pensilvanicus. American Pipit. One was taken at Sulphur Spring 
March 16 and on my next visit, March 23, quite a number were seen. 
Oroscoptes montanus. Sage Thrasher. The sage thrasher was not uncommon 
through the month of April but previous to that time it was rarely seen. 
Mimus polyglottos leucopterus. Mockingbird. The song of the mockingbird 
was first heard on the morning of April 15. From that time on it was a source of 
constant pleasure. 
Toxostoma bendirei. Bendire Thrasher. One taken April 8 and one April 17 
were the only specimens seen. 
Toxostoma crissale. Crissal Thrasher. Quite common. I found a nest April 
3 containing two rotten eggs, at which I was surprised, as I had thought it too 
early for eggs. Three days later on the 6th, however, I shot a young bird just 
able to fly which confirmed the suspicions aroused on the 3d. Fresh eggs were 
taken after this, April 8, ii, 15 and 20. 
Heleodytes brunneicapillus. Cactus Wren. A pair reared a brood of young 
in a nest placed in a hole in the corner of an old house. These were the only 
cactus wrens seen though quite a number of their conspicuous nests were noticed 
in the chollas and mesquites. 
Salpinctes obsoletus. Rock Wren. A single specimen was taken near the 
house at Allaire’s April 23, being the only one seen in the valley. In the 
Dragoon mountains, they were abundant in suitable places. 
Thryomanes bewicki bairdi. Baird Wren. Quite common. 
