Range Expansion of the White-breasted Waterhen (Amaurornis phoenicurus) into Micronesia

Donald W. Buden; Stanley Retogral

doi:10.1676/10-012.1

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Donald W. Buden,^1,* Stanley Retogral²

¹1Division of Natural Sciences and Mathematics, College of Micronesia-FSM, P. O. Box 159, Kolonia, Po
²2Yap State Department of Education, P. O. Box 220, Colonia, Yap, Federated States of Micronesia 9694

^*Corresponding author; e-mail: don_buden@comfsm.fm

Abstract

We report the first occurrence of the White-breasted Waterhen (Amaurornis phoenicurus) in Oceania based on discovery of a breeding population on Woleai Atoll, Yap, Micronesia. Islanders believe it first arrived on Woleai in the early 1970s, at a time when the species was beginning a period of range expansion that may be ongoing. Yap Outer Islanders report the waterhen is present also on nearby Eauripik, Ifaluk, and Faraulep atolls, where it arrived after it colonized Woleai. We summarize extralimital, nonbreeding dispersal of A. phoenicurus and report a recent first record for Palau.

Citation Download Citation

Donald W. Buden and Stanley Retogral "Range Expansion of the White-breasted Waterhen (Amaurornis phoenicurus) into Micronesia," The Wilson Journal of Ornithology 122(4), 784-788, (1 December 2010). https://doi.org/10.1676/10-012.1

Received: 15 January 2010; Accepted: 1 April 2010; Published: 1 December 2010

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