The mustache, also known as mustache, grazledon, or starlet leafhopper (Minas Gerais), collar-face or caretinha (Ceará), occurs almost throughout Brazil. It is locally common in clearings shrubs, crops, barns edges and areas with tall grasses, mainly near water. Their habitat is in open fields, cultivated fields and barns. Because of the corner, is appreciated bird and capture for the illegal trade, along with environmental changes, eventually reduce their numbers in much of the country, especially in the Northeast.
Measures 11 inches long. It has a fast and metallic chirp. The male is unmistakable, the white areas on the head, responsible for common names. The rest of the black contrast plumage tops is striking. Bottoms are slightly light gray and, in bright sun, may appear white. Characteristic beak, small and all black. Along with the long tail, slender body and head slightly bulky, so a more delicate silhouette than most other species of the genus. These characteristics are essential to help female identification, especially because usually blend in other coleiros in flocks of these granivorous birds. As it is also all brown, a little clearer in the lower parts, this morphological feature helps to characterize it. Also the relatively small and yellowish beak, mainly
It feeds mainly seeds. And it is easily drawn with grits.
Live in scattered pairs during the breeding season. It has from 2 to 4 litters per year, with 2 to 3 eggs in each.
As in other species of the group, the male marks the territory, while the female reproductive entire task.
Usually form mixed flocks with other Pope-grasses in the rest period. Moves up in the grass banners to eat the seeds.