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 19o THE CONDOR VOL. IX 0reospiza chlorura. Green-tailed Towhee. Seen thru the Sierras quite com- monly and breeding at the Lake. Five females and two males taken. Piranga ludoviciana. Western Tanager. Fairly numerous at the Lake and thru the Sierras. Male and female taken. Progne subis hesperia. Western Martin. Fairly common at the Lake. Juve- niles and adults taken. Petrochelidon lunifrons. Cliff Swallow. Breeding at the Lake. Hirundo erythrogaster. Barn Swallow. Breeding at Lake. Iridoprocne bicolor. Tree Swallow. Breeding at the Lake in dead pines. Riparia riparia. Bank Swallow. Uncommon at the Lake. Stelgidopteryx serripennis. Rough-winged Swallow. At the Lake, uncom- mon. Lanius ludovicianus gambeli. California Shrike. Seen at the Lake. Vireo solitarius cassinii. Cassin Vireo. Seen at an elevation of 6000 feet in the Sierras, but not observed at the Lake. Helminthophila celata lutecens. Lutescent Warbler. Breeding along brushy creeks thru the Sierras and at Eagle Lake. Dendroica auduboni. Audubon Warbler. Taken thru the Sierras where they were fairly numerous, and at Eagle Lake. Young seen June 14. Dendroica occidentalis. Hermit Warbler. Very rare; two seen on Buck Creek, Plumas County, one August 16 and one June 17; both were taken. Geothlypis tolmiei. Tolmie Warbler. Seen thru the Sierras. Taken at Buck Creek June 18, and seen with young at the Lake. Icteria virens longicauda Long-tailed Chat. Common thru the Sacramento Valley and Sierras. Breeding at the Lake. Cinclus mexicanus. American Dipper. One shot on the creek in Butte Meadows. Another seen on Susanville River, and a pair seen on Buck Creek, Plumas County. 0roscoptes montanus. Sage Thrasher. Breeding in sage brush at the Lake on the northwest side. Nine birds were taken July 8, and one set of three fresh eggs; nest placed in sage brush six inches from ground. llannus hiemalls pacificus. Western Winter Wren. One seen on Buck Creek, August 16. Telmatodytes palustris plesius. Western Marsh Wren. Breeding at Eagle Lake; quite common, and several empty nests found. One bird taken. Certhia familiaris zelotes. Sierra Creeper. Fairly numerous thru the Sierras, and breeding at the Lake. Four taken. $itta caro!inensis aculeata. Slender-billed Nuthatch. Breeding thru the Sierras and at Eagle Lake; fairly common, and birds taken. Sitta canadensis. Red-breasted Nuthatch. Breeding thru the Sierras and at the Lake; comparatively numerous. Sitta pygmaa. Pigmy Nuthatch. Breeding thru the Sierras and at the Lake. Most in evidence of the three species and seen more plentifully at the Lake than elsewhere. Adults and juveniles taken from July 12 to August 1. Parus gainbell. Mountain Chickadee. Common thru the Sierras, the first being noted at an elevation of 4000 feet; several nests found, all with young. Very close sitters; on one occasion, where the nest was located in a stump about two feet from ground, the bird would not stay flushed and would fly back to the hole with mad chatterings. A few birds taken, 