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1 September 2017 Herring Gulls (Larus argentatus) Depredate Chimney Swifts (Chaetura pelagica) at a Migratory Roost
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Abstract

We describe a new predator-prey relationship between Herring Gulls (Larus argentatus) and Chimney Swifts (Chaetura pelagica) at a communal roost in Sault Ste. Marie, ON, Canada. In a season-long study in 2015, we document 38 instances of predation, an estimate which likely underestimates the extent of total predation pressure. Chimney Swifts were captured on-the-wing by Herring Gulls.

Dean Evans, Jennie Pearce, and Jennifer R. Foote "Herring Gulls (Larus argentatus) Depredate Chimney Swifts (Chaetura pelagica) at a Migratory Roost," The Wilson Journal of Ornithology 129(3), 632-636, (1 September 2017). https://doi.org/10.1676/16-065.1
Received: 30 April 2016; Accepted: 1 December 2016; Published: 1 September 2017
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