Ruaha chat paper

Geographically structured plumage variation among populations of White-headed Black Chat (Myrmecocichla arnotti) in Tanzania confirms the race collaris to be a valid taxon Robert Glen • Rauri C. K. Bowie • Susan Stolberger • Gary Voelker Received: 10 September 2009 / Revised: 10 May 2010 / Accepted: 9 June 2010 ! The Author(s) 2010. This article is published with open access at Springerlink.com

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