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 Jan., 1909 NOTES ON BIRDS OF SOUTHWESTERN MONTROSE COUNTY, COLO. 17 Piranga lud0viciana. Western Tanager. Not very common; not more than fifteen seen at Coventry during ten years residence (Smith). Petrochelidon lunifrons. Cliff Swallow. A common summer resident (Smith). Hirundo erythrogaster. Barn Swallow. Common summer resident (Smith). Tachycineta thalassina lepida. Violet-green Swallow. Common summer resi- dent (Smith). Bombycilla cedrorum. Cedar Waxwing. Smith saw a flock in the winter of 1907-8, from which he shot one. This is the only time he has seen the bird. Lanius borealis. Northern Shrike. Occasional in winter (Smith). Lanius ludovicianus excubitorides. White-rumped Shrike. A common sum- mer resident (Smith). I saw it at Bedrock, Naturita and Coventry. Dendroica estiva. Yellow Warbler. Occasionally seen at Coventry (Smith). Dendroica auduboni. Audubon Warbler. Taken by myself at Bedrock, April 20, 1908, and in Naturita Cation (San Miguel County) near Coventry, April 29, 1908. It of course goes into the higher mountains to breed, and is only found in this region during the migrations. Dendroica nigrescens. Black-throated Gray Warbler. Common summer resi- dent in the pitiohs and cedars (Smith). 0r0scoptes montanus. Sage Thrasher. Common summer resident (Smith). Mimus polyglottos leucopterus. Mockingbird. Very rare (Smith). Salpinctes obsoletus. Rock Wren. Common summer resident (Smith). I saw it at Bedrock and Coventry. Thryomanes bewickii bairdi. Baird Wren. Smith found a nest in a hollow cedar tree, July 4, 1903, containing six fresh eggs, which were identified as be- longing to this species by Mr. Fred M. Dille. Mr. Smith says the bird was a very sweet singer. Troglodytes adon parkmanfl. Western House Wren. Common summer resi- dent (Smith). Sitta carolinensis nelsoni. Rocky Mountain Nuthatch. Common. I saw sev- eral in 1908. Sitta pygmea. Pigmy Nuthatch. Resident; breeds; Smith has found the nest. Baeo10phus inornatus griseus. Gray Titmouse. Not very common (Smith). I have seen it near Coventry and near Naturita P. O. Penthestes gambeli. Mountain Chickadee. Common; resident about Co- ventry. Psaltriparus plumbeus. Lead-colored Bush-tit. Fairly common; breeds; Smith has found the nest in the pitiOhS. Planesticus migratorius propinquus. Western Robin. Common summer resi- dent. Sialia mexicana bairdi. Chestnut-backed Bluebird. Not very common and does not breed (Smith). I.saw several near Coventry, April 26, 1906. Sialia currucoides. Mountain Bluebird. Common summer resident (Smith). Colorado Springs, Colorado.