Ruaha Chat Myrmecocichla collaris Geographically structured plumage variation among populations of White-headed Black Chat (Myrmecocichla arnotti) in Tanzania confirms the race collaris to be a valid taxon. Roughly 40% of Tanzania is comprised of Miombo (Brachystegia) woodland interspersed with seasonal wetlands induced by restricted river flow. Some of these seasonal wetlands attain lakelike proportions during […]
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