We report range extensions of Caprimulgus sericocaudatus, Automolus ochrolaemus, Dichrozona cincta, Poecilotriccus andrei, Ramphotrigon fuscicauda, Ramphotrigon megacephala, Turdus lawrencii, and Euphonia chrysopasta for Pinkaiti and Gorotire, east of the Xingu River, southeastern Pará State, Brazil. The distributional status of the following species in southeastern Amazonia is also discussed: Nonnula ruficapilla, Synallaxis cherriei, and Simoxenops ucayalae. The new records we report suggest that the patchy distribution of some birds in eastern Amazonia, such as species associated with bamboo, can be explained by a complex mosaic of habitats at the eastern and southern fringes of the Amazonian basin. The range extensions we report demonstrate that areas inventoried a long time ago, before an emphasis on vocal identification of species, and assumed to be “well known”, can in fact turn out to be ornithologically undersampled.
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