Sooty grassquit
The sooty grassquit is a small bird. It is recognized as a tanager closely related to Darwins finches.
It is found in Argentina, Bolivia, Brazil, Colombia, Guyana, Paraguay, Trinidad and Tobago, and Venezuela. Its natural habitats are subtropical or tropical moist lowland forest, subtropical or tropical moist montane forest, subtropical or tropical dry shrubland, and heavily degraded former forest.