Characterization: Small species measuring about 12cm in length. Its upper side is grayish, the lower one is white and the male has a black mask.

Distribution: Bolivia, Paraguay, Argentina, Uruguay, and Brazil (southeast Pará, Goiás, Minas Gerais to São Paulo, Rio Grande do Sul, and Mato Grosso).

Habitat: Open fields, among thorny trees.

Habits: Diurnal species that enjoys arid regions; it keeps its tail in constant movement, whether vertically or laterally.

Diet: Carnivorous, mainly insectivorous.

Breeding: This bird lays its eggs in a delicate nest, like that of hummingbirds, lined with lichen attached by cobwebs.

In the UFRA area: This bird species was spotted only in forests in spontaneous regeneration. It is considered rare in the studied farms, as it was seen only once in all surveys done.