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 Mar., 1911 SUMMER BIRDS OF WILLOW CREEK VALLEY, OREGON 69 .59. Stelgidopteryx serripennis. Rough-winged Swallow. Moderately com- mon and seen almost daily; apparently nesting in the small canyons. 60. Lanius 1. excubitorides. White-rumped Shrike. Rather common and seen almost every day in the sage brush. 61. Vireosylva g. swainsoni. Western Warbling Vireo. A single male, in song, was seen and secured in Pole Creek Canyon, July 19. 62. Dendroica a. aestiva. Yellow Warbler. Abundant in the willow timber. Occasionally seen, but not plentiful, in Pole Creek and Willow Creek Canyons. 63. Geothlypis t. occidentalis. Western Yellowthroat. On two occasions a Yellowthroat, presumably representing this subspecies, was heard singing in a thicket at the mouth of Willow Creek Canyon. 64. Icteria v. Iongicauda. Long-tailed Chat. Abundant in all the more ex- tensive willow thickets. 65. Setophaga ruticilla. Redstart. On June 30 a pair of Redstarts were seen in the willow timber. On July 14 a female was noted feeding a young Cowbird. 66. Oreoseoptes montanus. Sage Thrasher. Common in the sage brush and seen nearly every,day. 67. Dumetella carolinensis. Catbird. A considerable number of Catbirds, both young and mature, were seen in the willow timber, but none were observed elsewhere. 68. Salpinctes o. obsoletus. Rock Wren. Plentiful in canons and other suitable places. Usually found in families, the young being full grown by Jlly 1. 69. Troglodytes a. parkmani. Western House Wren. On June 28 a pair of these birds were seen feeding young in the nest; this was in a woodpecker's hole in a small tree in the willow timber. Two or three other specimens were noted in the same locality and one was secured. 70. Telmatodytes p. plesius. Western Marsh Wren. One specimen was taken in a willow thicket, July 23. 71. Sitta canadensis. Red-breasted Nuthatch. A bird of the year was taken in the willow timber, July 18. 72. Penthestes a. septentrionalis. Long-tailed Chickadee. Two or three families were met with iu Pole Creek Cauyon, July 1, and subsequently as many more in the willow timber, where one specimen was taken. 73. Hylocichla u. swainsoni. Olive-backed Thrush. Numerous specimens were seen and two or three taken in the willow timber. Many males were in full song up to the middle of July, and nesting was still apparently going on. 74. Planesticus m. propinquus. Western Robin. Robins were moderately common in the willow timber, but none were observed elsewhere. NESTING OF THE CALIFORNIA CUCKOO IN LOS ANGELES COUNTY, CALIFORNIA By ANTONIN JAY wxTx Tx: VXOTOS AVING read with much interest the account in the January CONDO by Mr. Alfred C. Shelton, of the nesting of the California Cuckoo (Coccyzus a. occidentalis) in Sonoma County, and noting that some of its habits in that locality are slightly different from what they are here, I will endeavor to give a