Tibble, D.O 1989 Peromyscus californicus 20 Hastings Reservation, Mendocino Co., Calif April 9 (cost) and covered the hole. David set up all the recording equipment while I returned to the cabin to make us some lunch (~1230?) At ~1330h we went back in with the fiber-optics and shot some film showing all 3 juveniles in the nest. Somewhat artificial - we could see them through the holes with a flashlight. In fact, we remarked the ♂ & ♀ infant with liquid paper so they would be clearly visible on film - yes, it did confirm that mated pairs with offspring are in the nest together; but no this setup would be almost impossible for "hard" data collection (paternal behaviors). David was very disappointed, but we had to try. It was relieved we got this far (kneeling problems, etc) and maybe not too surprised. The last thing we did was to pull the female out to make (to-see?) its young as follows & offspring of ~1225) #014, 10g, white-tail tip, ♀ - David thinks she is 8 days old. We returned them to their nest, packed up, and left one passageway (original entrance) open (~1700h) We returned later ~2200h and they (♂ & ♂) were ~2m NE of S,10. Obviously abandoned this site! Diagram of site (surrounded by poison oak & willow) proximal holes drilled 50cm solid 1.5m distal entrance lined with powder blocked - no sign of powder 20cm diameter N S W E