Koford, R. 1975 Journal 7 mi. E Nevada City, 4060 ft., Nevada Co., Calif. 9 July 1145, 1151, and 1212, and saw one squirrel of unknown sex in the late afternoon. I looked from 0930 to 1230, 1630 - 2100. The sky was clear most of the time, with a few clouds on the eastern horizon in the morning and about 40% cloud cover with light clouds in the late afternoon. Wind light. Temp. about 60°F in early evening, about 80°F in the early afternoon. 10 July I got dry ice in the morning, then spent 0200 to 1300, 1600 to 2145 in the study area, hearing 11 churring calls, capturing no squirrels. Most of the morning was about 80% cloud cover, then 85% in the early afternoon, clearing in the late afternoon. Temp. about 60°F at 0900, low 70's (°F) in the early afternoon, low 60's (°F) in the evening. 11 July I spent 0630 to 1300 in the study area, hearing 20 churring calls. I picked up the traps and left shortly after 1300. Sky clear, wind light, temp. about 60°F at 0800, mid 70's at 1300. 16 July I arrived at 1700 and spent from then until 2030 in the study area. I found 6 green cones (Podroza Pine) with most of the scales removed under one tree. They were about 7 cm. long. It rained lightly in Berkeley on the morning of 15 July, and it apparently rained here, too. The top layer of forest litter is damp in places, but the soil is mostly dry underneath. At 1700 there was about 80% cloud cover, but it cleared later on. Wind light, Temp. in mid-70's (°F) at 1700, mid 60's at 2000. #7 July I spent 0750 to 1245, 1545 to 2045 in the study area, hearing 13 churring calls and capturing 2 squirrels. The trap