J.R. Alcorn 1939 Antrozous pallidus About 5 mi. W Sahontaw Dam in Churchill Co., Nevada Aug. 7, We moved up the railroad for about 1/4 mile & there under a similar bridge we found droppings that indicated bats had recently occupied the crevices up in between the large planks (about 18in x 18in) that were about 1/2 to 1 inch apart apart thus leaving a place out of the light for these bats. After spending some time in the vicinity my wife thought she heard a bat so by closer observations we found or rather we could see on favorable occasions a bat or two up in the crevice. I shot shot up into " & several bats fell from to the ground. This location, as I found in previous occasions, was in the foothills & at each time I have found & seen the bats in groups of up to fifty which indicates they are colonial