About Arremon brunneinucha (Lafresnaye, 1839)
The chestnut-capped brushfinch, with the scientific name Arremon brunneinucha (Lafresnaye, 1839), is a large, robust, mainly terrestrial species. It measures 19 cm long and weighs 45 g, and has a long slender bill along with large feet and legs. Adult individuals have a distinctive head pattern: a yellow-edged chestnut crown and nape, a black forehead and black sides of the head, white spots in the center and on each side of the forehead, and a white throat that is often puffed up when the bird is excited. Its upperparts are dark olive, and its wings are darker than the rest of the upperparts. A black band separates the white central breast from the white throat. The sides of the breast are grey, while the flanks and lower belly are olive-green. Juvenile birds have a sooty-brown cap, sooty face, and olive-brown upperparts, throat, and breast. This species produces a thin pink call and a very high-pitched psssst. The male's song is made up of a mixture of whistles and sharper notes. The chestnut-capped brushfinch is a common bird that lives in the undergrowth of wet mountain forests, second growth, and ravines, at altitudes ranging from 250 m to 900 m. It breeds in highlands ranging from central Mexico to south-eastern Peru.
