SummaryPopulations of grassland birds are declining in Brazil due to profound alterations to grassland habitats. In this paper, we present recent records and range extensions for 12 threatened or little known Brazilian grassland species: Ocellated Crake Micropygia schomburgkii, Sickle-winged Nightjar Eleothreptus anomalus, Campo Miner Geositta poeciloptera, Rufous-sided Pygmytyrant Euscarthmus rufomarginatus, Sharp-tailed Grass-tyrant Culicivora caudacuta, Cocktailed Tyrant Alectrurus tricolor, Cinereous Warbling-finch Poospiza cinerea, Black-masked Finch Coryphaspiza melanotis, Tawny-bellied Seedeater Sporophila hypoxantha, Marsh Seedeater S. palustris, Chestnut Seedeater S. cinnamomea and Black-bellied Seedeater S. melanogaster. We also comment on the biogeography and conservation of these species.
ResumoAs populaçõ es de aves campestres brasileiras estão sofrendo tremendos impactos decorrentes das alteraçõ es sofridas pelos campos naturais. Neste estudo são apresentados registros e extensõ es na distribuição geográfica de 12 espécies de aves campestres brasileiras pouco conhecidas ou ameaçadas de extinção: Micropygia schomburgkii maxalalagá, Eleothreptus anomalus curiangodo-banhado, Geositta poeciloptera andarilho, Euscarthmus rufomarginatus maria-corruíra, Culicivora caudacuta papa-moscas-do-campo, Alectrurus tricolor galito, Poospiza cinerea capacetinho-do-oco-do-pau, Coryphaspiza melanotis tico-tico-de-má scara-negra, Sporophila hypoxantha caboclinho-de-barriga-vermelha, S. palustris caboclinho-de-papo-branco, S. cinnamomea caboclinho-de-chapéu-cinzento e S. melanogaster caboclinho-de-barriga-preta. Também são apresentados comentários sobre a conservação e a biogeografia dessas espécies.
The Black-collared Swallow, Pygochelidon melanoleuca, is a Critically Endangered species in the state of Minas Gerais, Brazil, where its distribution remains poorly known. Here we present novel occurrence records in the Paranaíba, São Francisco and Jequitinhonha river basins, and we discuss the conservation of this species in the region.
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