A avifauna da região de Vila Bela da Santíssima Trindade, Mato Grosso

Abstract

We inventoried the avifauna of the region of Vila Bela da Santíssima Trindade (including the municipality of Pontes e Lacerda), in Mato Grosso State, in the end of July of 1997. Our results were compared with those of Natterer and of Willis and Oniki, who covered the same region in the 1820's and 1980's respectively. We used different sampling methods, recording a total of 312 species of birds. Most of species recorded are related with Amazon region. A total of 472 bird species were recorded in Guaporé Valley when the results of the others authors were summed with ours results, and many of the species recorded by them were also recorded in our study. The cerrados of Vila Bela da Santíssima Trindade probably guards the largest population of a globally threatened species, the Black-and-tawny Seedeater, Sporophila nigrorufa, as many other cerrado specialists and deserve immediate conservation measures.