Koford, R. 1976 Journal Tamiasciurus douglasii White Cloud campground, 4300 ft, 11 mi. E Nevada City (by rd.), Nevada Co., Calif. 12 July I spent 0550 - 1305, 1345 - 2040 in the 1st study area, hearing 163 chirs. I only opened 41 traps, from 0910-1010, closed them ~ 1830, catching a Junco and 3 Berkeley Ground Squirrels. I saw one Gray Squirrel in the study area, and 1 shrew. I again got some good observations on the estrous juvenile. Other males are coming into the area, so maybe tomorrow will be the day. Sky clear, wind light. Temp. 55° F at 0545, 78° F at 1330, 66° F at 2130. 13 July I spent 0535-1020, 1150-2050 in the 1st study area, hearing lots of chirs and seeing a mini-mating bout involving a Sjuvenile. It mainly involved 2 males, but 2 others, at least, were also involved. The or that spent practically the whole day with the f didn't finish his copulation. I didn't set the traps. Sky clear, wind light, temp. 66° F at 0530, 77° F at 1145, 67° F at 2115. I saw a Gray Squirrel interact with a chickaree, and 2 other in the same tree, close together, tails hanging straight down - presumably juveniles. I got what I think was a good count on a family in the morning. 14 July I spent 0530-1355, 1600-2020 in the 1st study area, except for ~ half an hour around noon and a little over an hour in the afternoon in the campground. I opened the traps (45) at 0720-0825, closed them ~1815, catching 5 Stellar Jays, a Junco, and 3 Berkeley Ground Squirrels. I saw 3 Gray Squirrels. I tried playing some calls on a tape recorder in the campground in the afternoon,