May 30, 1949, Lake Washington, Yolo Co, W of Sacto. 945-1015 a.m. Farallon Cormorant - 1 Blue Heron - 2 Ruddy Duck male - 1 Monterey Red-shafted Flicker Suisun Long-billed Marsh Wren W. Meadowlark Yellow-headed Blackbirds Calif. Bicolor Redwings Brewer Blackbirds Modesto Song Sparrow May 30, 1949, Natomas, Sacramento Co. 1045-1120 a.m. Anthony Green Heron California Woodpecker Nuttall Woodpecker Ash-throated Flycatchers Violet-green Swallows Calif. Plain Titmouse Calif. Bush-tits House Wrens Bewick Wrens Warbling Vireo Yellow-breasted Chat -"butterfly" Bullock Oriole Black-headed Grosbeak Green-backed Goldfinch Sacto Spotted Towhee May 30, 1949, Folsom Reservoir Area, Sacto and Placer Counties, 1130-1330 p.m. Vultures circling over area Killdeer Monterey Red-shafted Flickers California Woodpeckers common in blue oak areas Western Kingbirds A sh-throated Flycatchers - 3 pairs seen. Wood Pewee Black Phoebe Cliff Swallows Interior California Jays Yellow-billed Magpies Calif. Plain Titmouse Green-backed Goldfinch Sacto Brown Towhee Western Robin Russet-backed Thrush Yellow Warbler Yellow-breasted Chat Western Meadowlarks Calif. Bicolor Redwings Chipping Sparrow Modesto Song Sparrow plus At gate into dam - an interesting association inone live oak at edge of highway on Folsom-Auburn Road. Just 10 feet from me in car were several pairs of English Sparrows, Purple Finches, a Lark Sparrow and Bullock Oriole. About 9' above the ground hanging from an outer limb of a live oak was a bullock oriole nest made of very fine material. The cup outside size was 3½" deep and 2½" wide. There were 3 young in the nest and 1 dead one found on the ground below the nest. Up to 2½" long. Primaries ⅔" long, still sheathed. The young were very noisy when a parent came to the nest to feed them, but they kept very quiet after the parent gave a low churring note upon departure. While I watched the male made 4 trips to the nest with food, but the female seemed very hssitant to approach the nest when I was so near. Her hesitancy affected the male as well, and both spent much time just perched with food in their mouths, chirping. I observed hem to bring insects and ripe cherries to the nest. Visits were spaced about 1½ min., 2 min., 1¼ min., 2 min., 7 min., and 3 min., and 5 min. Following the females 1 delayed visit, she hung near the nest, chirping, and preening for at least 8 minutes. The male was not seen during this time. The feeding calls of the young attracted the California Purple Finches each time, for they had a nest at 11' on the same main limb, just 7' from the Oriole nest. This nest had 4 young in it. A lark sparrow adult, carrying a grasshopper, lit in the live oak, and acted as if it had a nest nearby, but I could not locate it. In moving through the tree it got within a foot of the oriole female, and the nest, but no action took place, then it moved over and was practically on top of the purple finch nest and the pair of adults made passes at it, but lost out, however, the cries brought other nearby finches into the tree. The commotion also attracted some adult male English Sparrows, and these were driven away by the Lark Sparrow while he still held the grasshopper