Benson 1951 -a female with nursing young. But no Cory in the attic. Then went up to extra Mines. In the two lower tunnels saw one banded ♂ Cory (reefed). In the upper tunnel in the front half was the breeding colony. Caught all except 1: Most of the young near flying age. Also a very spotted female here at same places last autumn in the upper tunnel. There were 22 adult Cory and 20 young Then swam in Pope Creek and drove to Manhattan Mines. A brush fire was burning on the west slope right at the mines and the first tracks were there, so we slept a mile or two further into the wood. Saw many grouse with just-flying young. Also deer, ground squirrels, jack rabbits, weather hot. June 16 looked in the 20-horse hole at Manhattan Mines. Found a few stray males and finally in a short upper tunnel open at both ends found a large cluster of ♀♀. At least a dozen ended, probably 2 dozen. Most young were flyable. Surprised to find so few of the females banded from last year. Total 25 new adult ♀♀, 11 old banded ♀♀, 21 young ♂♂, 21 young ♀♀; total 36 adult, 42 young Then looked in O.P. Tunnel, Margaret's tunnel, tunnel