Bat use of highway bridges in south-central Montana /
We studied use of highway structures by bats in the Billings, Montana area during 2003 and 2004. We found evidence of bat use at 78 of 130 highway structures examined during summer 2003 in Carbon, Stillwater, and Yellowstone counties; 66 structures were u
Montana Natural Resource Information System.
Helena, MT : Montana Dept. of Transportation, Research Program ; [Springfield, Va. : Available through the National Technical Information Service,