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20 June 2019 Non-kin infanticide by a male in the polygamous Japanese Marsh Warbler (Locustella pryeri)
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Abstract

Non-kin infanticide is the killing of unrelated young by a conspecific adult, and occurs infrequently in some bird species. We observed a case of non-kin infanticide committed by a male Japanese Marsh Warbler (Locustella pryeri) in 2008. The sudden disappearance of a nesting male from his territory made the neighboring male expand his original territory to the vacant area where the unrelated nestlings were being reared by a female in the nest. The male found the nest and attacked the unrelated nestlings. We inferred that the infanticide sequence was done as food resource competition and/or sexually selected infanticide.

Masao Takahashi, Masayoshi Kamioki, and Keisuke Ueda "Non-kin infanticide by a male in the polygamous Japanese Marsh Warbler (Locustella pryeri)," The Wilson Journal of Ornithology 131(2), 386-390, (20 June 2019). https://doi.org/10.1676/18-59
Received: 10 January 2018; Accepted: 15 December 2018; Published: 20 June 2019
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