Abstract
Summer colonies of the eastern pipistrelle, Pipistrellus subflavus , in six different buildings in Indiana were studied by the owners of the buildings. Colonies generally started forming from 13 to 29 April. Size of the colony increased gradually and reached a maximum of 7 to 29 adults ( X = 15 ± 7 SD, n = 18) from 26 April to 7 June. Births occurred from 30 May to 11 July, but most young were born from 12 June to 1 July. Juveniles apparently became volant ca. 4 weeks of age and foraged with their mothers for ca. 1 week. Adults often abandoned maternity roosts soon after weaning, but young remained longer. There was considerable daily variation in the number of bats in a given colony, and sometimes the entire colony disappeared, even when flightless young were present, suggesting that each colony was using more than one roost.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
