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1 December 2018 Fooled by a fool hen: male Ruffed Grouse (Bonasa umbellus) courts a female Spruce Grouse (Falcipennis canadensis)
Andrew N. Iwaniuk
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Abstract

Hybridization is relatively common in galliforms. In many cases, these hybrids are thought to arise through failures in species recognition, but there are no documented observations of this occurring in the wild. On 1 May 2013, I observed a male Ruffed Grouse (Bonasaumbellus) engage in a courtship display directed toward a female Spruce Grouse (Falcipennis canadensis). This is the first documented case of mistaken species recognition by a Ruffed Grouse and reveals 2 novel aspects of their behavior: the sound of wing flapping might be used to localize conspecifics, and males can be prone to directing courtship toward other species.

Andrew N. Iwaniuk "Fooled by a fool hen: male Ruffed Grouse (Bonasa umbellus) courts a female Spruce Grouse (Falcipennis canadensis)," The Wilson Journal of Ornithology 130(4), 1000-1003, (1 December 2018). https://doi.org/10.1676/1559-4491.130.4.1000
Received: 12 July 2017; Accepted: 2 September 2018; Published: 1 December 2018
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