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Narrow-billed antwren : ウィキペディア英語版 | Narrow-billed antwren
The narrow-billed antwren (''Formicivora iheringi'') is a species of bird in the family Thamnophilidae. It is endemic to eastern Brazil where it occurs in Bahia and Minas Gerais states. Its natural habitat is deciduous and semi-deciduous forest between 250 and 1,050 metres above sea level. It is threatened by habitat loss. The narrow-billed antwren is sometimes put in the monotypic genus ''Neorhopias''. == Description == The narrow-billed antwren exhibits sexual dimorphism. The male is dark grey, with a black breast. It has 2 white wing bars and white tips on the outer tail feathers. The female, however, is olive breasted and with brown wings.〔Grosset, Aurthur. "Narrow-billed Antwren - Formicivora Iheringi." South American Birds. N.p., Dec. 2008. Web. 14 Apr. 2014.〕 It has been noted that these birds also look very similar to the silvery-flanked antwren.
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