Description wikipedia

The many-colored Chaco finch (Saltatricula multicolor) is a species of bird in the family Thraupidae, the tanagers and allies. It is found in Argentina, Bolivia, Uruguay, Paraguay, and as a vagrant in Brazil. The many-colored Chaco finch is 17 cm (6.7 in) to 18 cm (7.1 in) long. It weighs 20 to 25 g (0.71 to 0.88 oz). The sexes have essentially the same plumage though females are generally slightly duller than males and have a paler face. Adult males have a black face from the lores to the eye and down the cheek to the side of the neck. They have a white supercilium that begins wide just past the eye and tapers to the rear. They have a small white spot at the base of the bill, a thin white arc below the eye, and gray ear coverts. Their throat is white Their crown and nape are brown, their mantle and upper back pale brown washed with olive, and their lower back, rump, and uppertail coverts gray. Their wing coverts are grayish or grayish brown and their flight feathers and tertials grayish with pale brown edges. Their central pair of tail feathers are gray and the rest blackish with white on the distal third of the outermost pair. The gray of the ear coverts continues down and around the upper breast. Below the gray breast band is a cinnamon-buff band that extends along their sides onto the flanks. The rest of their underparts are white. Both sexes have a dark iris, a thick bright yellow bill with a darker culmen, and dusky legs and feet.