A Maternity Roost of Silver-haired Bats (Lasionycteris noctivagans) in New Brunswick: First Evidence of Parturition in Atlantic Canada

Donald F. McAlpine^1,*, Jenna L. Bullied², and Pamela D. Seymour²

¹Department of Natural History, New Brunswick Museum, 277 Douglas Avenue, Saint John, NB E2K 1E5, Canada. ²Fish and Wildlife Branch, Department of Natural Resources and Energy Development, Hugh John Flemming Forestry Centre, PO Box 6000, Fredericton, NB E3B 5H1, Canada. *Corresponding author.

Northeastern Naturalist, Volume 28, Issue 1 (2021): N1–N6

Abstract
A maternity roost for Lasionycteris noctivagans (Silver-haired Bat) discovered in Fredericton, NB, on 30 June 2020 is the first evidence of parturition for the species in Atlantic Canada and the most northern in eastern North America. The colony consisted of 17 non-volant pups and an estimated 8–10 adult females, with parturition estimated as early to mid-June. The roost was located at a height of ~9 m in a mature Pinus strobus (Eastern White Pine). There is a need to assess the importance of large trees and stands of over-mature forest for bats in the Atlantic region.

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