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Plain-throated Antwren Isleria hauxwelli

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Widely distributed, principally across southern Amazonia, the diminutive and usually fairly common Plain-throated Antwren occurs from extreme east Amazonian Brazil west to eastern Peru, and north to southeast Colombia, over which range it is exclusively found below 900 m elevation. Whereas males are almost entirely a delicate, pale gray coloration with darker wings and two bold white wingbars, females are tawny-cinnamon below, with a grayer crown and upperparts, and two pale wingbars. It inhabits both terra firme and seasonally flooded areas, but is always found foraging very close to the ground, either alone or in pairs, sometimes following army ant swarms, and occasionally following mixed-species foraging flocks for brief periods through the undergrowth. Given the species’ comparatively skulking behavior, the Plain-throated Antwren is perhaps most easily located by long, rather slowly delivered loudsong.

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© Theodore A Parker, III

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  • Year-round
  • Migration
  • Breeding
  • Non-breeding

Recommended Citation

. (). Plain-throated Antwren (Isleria hauxwelli), Neotropical Birds Online (T. S. Schulenberg, Editor). Ithaca: Cornell Lab of Ornithology; retrieved from Neotropical Birds Online: https://neotropical.birds.cornell.edu/Species-Account/nb/species/pltant1