Davis, 1940. 25). Aug. 11. 1 1/2 mi. s.e. Chinoak, 10', Pacifico., Wash. cones. At about 4 p.m. went with Russell and Chat- tin about 1 1/2 mi. n.w. Chinoak to set traps. Found numerous muskrat runs in a meadow small estuary which cut through meadowland. Russell had a young skunk in a steel trap, which the three of us finally killed after a severe and at times hazardous (and malodorous) battle. Set traps for Microtus in under- ground runs, which are very numerous. Birds noted today: - Blue Heron, Double-crested Cormorant, Glaucous- winged, Western, and Ring-billed Gulls, Red-tailed Hawk, Red-shafted Flicker, Northwestern Crow, Kingfisher, Winter Wren, Western Flycatcher, Olive-sided Flycatcher, Barn Swallow, Song Sparrow, Russet-backed Thrush, Robin, Black-capped Chickadee, Bewick Wren, Yellow Warbler, Red-winged Blackbird. Aug. 12. Pand traps + skinned a.m. - 2 Sorex townsendii, 2 Zapus. Spent rest of day packing for return trip to Berkeley, but at 4 p.m. changed plans, decided to remain with Chatin and Russell until September 1. Unpacked. Birds observed: - Northwestern Crow, Western, Bonaparte, Ring-billed, and California Gulls, Double-crested Cormorant, Red-breasted Merganser, Bald Eagle, Blue Heron, Cinnamon-teal, Mall- ard, Red-backed Sandpiper, Killdeer, Winter Wren, Robin, Willow Goldfinch, Black-capped Chickadee, Western Fly- catcher, Red-shafted Flicker, Kingfisher, Barn Swallow, Song Sparrow, Russet-backed Thrush. Aug. 13. Sibley left 6:45 a.m. Traps produced 1 Zapus,