Characterization: Small species measuring about 8.8cm in length. It has gray upper parts and yellow lower ones, with broad white tips on its wing feathers. 

Distribution: From Mexico to Bolivia and throughout Brazil.

Habitat: Sparse forest, salt marsh, backyards and in tree tops.

Habits: Diurnal and aggressive species, showing nervousness through sudden movements of the wings. It has the habit of sleeping in groups or of seeking a more sheltered place to spend the night.

Diet: Carnivorous, mainly insectivorous.

Breeding: This bird lays its eggs in enclosed suspended-bag-shaped nests, with side entrances protected by an overhanging cover.

In the UFRA area: This species was common in surveys conducted at the São Francisco Sugarmill areas. It was spotted 74 times. This bird species had a broad spatial distribution, being spotted in 9 of 10 habitats. It was spotted in the exotic woods, meadows with grasses, meadows with riparian forests, in restored native forests, in mixed forests in regeneration, native forests, in drainage ditches, and in fields in spontaneous regeneration.