Characterization: Small species, measuring about 13cm in length, easily recognizable because of its light yellow sulfur shades on its lower parts, small beak, and a relatively short tail.

Distribution: From Panama to Chile and Argentina and throughout Brazil.

Habitat: Fields, and lake, river, and swamp edges. It takes advantage of landfills resulting from road construction.

Habits: A diurnal species, this bird walks close to the ground and avoids flying, although it can fly very well.

Diet: Essentially carnivorous, feeding on small insects. Sometimes it eats seeds, perhaps more in winter, when food of animal origin becomes scarce.

Breeding: This bird lays three eggs on the ground, building a crude, deep bowl-like shaped nest under a clump of grass.

In the UFRA area: In the survey campaigns carried out in the UFRA areas, this bird was only found in organic sugarcane. This occurrence may be associated with abundant mesofauna, especially beetles, termites, and ants. It was seen in plots and, because of how easy it is to get around in them, between sugarcane crop rows. Restricted spatial distribution. This bird is considered rare because it was spotted only once.