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31 December 2020 LETHAL INTRASPECIFIC BEHAVIOR BY ANNA'S HUMMINGBIRD
Jules Evens, Christopher Harper
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Abstract

Intraspecific agnostic behavior is well-known in hummingbirds; however, lethality in North American species is unreported. Here we describe an observation of a lethal attack by a male Anna's Hummingbird (Calypte anna) on another male of the same species during mid-winter near the northern extent of the species' winter range.

Jules Evens and Christopher Harper "LETHAL INTRASPECIFIC BEHAVIOR BY ANNA'S HUMMINGBIRD," Northwestern Naturalist 101(3), 221-222, (31 December 2020). https://doi.org/10.1898/1051-1733-101.3.221
Received: 9 February 2020; Accepted: 10 March 2020; Published: 31 December 2020
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