Acoustic Evidence of Hoary Bats (Lasiurus cinereus) on Newfoundland, Canada

Darrian P. Washinger^1,*, Raymond Reid², and Erin E. Fraser³

¹Boreal Ecosystems and Agricultural Sciences Program, Memorial University of Newfoundland (Grenfell Campus), 20 University Drive, Corner Brook, NL A2H 5G4, Canada. ²Resource Management II, Parks Canada, PO Box 130, Rocky Harbour, NL A0K 4N0, Canada. ³Environmental Science Program, Memorial University of Newfoundland (Grenfell Campus), 20 University Drive, Corner Brook, NL A2H 5G4, Canada. *Corresponding author.

Northeastern Naturalist, Volume 27, Issue 3 (2020): 567–575

Abstract
We report 4 occurrences of Lasiurus cinereus (Hoary Bat) on the island of Newfoundland, Canada, based on over 50,000 full-spectrum recordings of echolocation calls made at 94 sites, in Gros Morne National Park, between 2013 and 2019. Our detections of few vocalizations by Hoary Bats over multiple years and locations support prior observations that this species is an infrequent vagrant in western Newfoundland and likely not a summer resident.

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