Use of a Bridge for Day Roosting by the Hoary Bat, Lasiurus cinereus
Keywords:Hoary Bat, Lasiurus cinereus, roosting, habitat, bridge use, Montana
AbstractThe Hoary Bat (Lasiurus cinereus) is a migratory species with the widest distribution of all New World bats. It is a solitary species that roosts during the day and night primarily among tree foliage. During a survey of 130 highway structures (bridges and culverts) in south central Montana for evidence of use by bats, we discovered a female Hoary Bat with young in mid July 2003 using a wooden bridge as a day roost. This is the first report of Hoary Bats using a bridge as roosting habitat.
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