Long-tailed finch length. It has a prominent roundish black bib on its throat and upper chest and a long pointed black tail. It has pinkish brown upperparts with paler plumage below its bib over the lower breast and abdomen. It has a grey head, a white ear-patch, and black lores. It has black patches on its upper flanks and its rump and undertail coverts are white. The beak colour of the adult long-tailed finch varies from red through orange to yellow. The subspecies with red beaks is sometimes called Heck's grass finch "Poephila acuticauda hecki", and the nominate subspecies with orange or
Thick-billed seed finch Thick-billed seed finch The thick-billed seed finch ("Oryzoborus funereus") is a species of bird in the family Thraupidae, but was until recently placed in Emberizidae. It is found widely in shrubby and grassy areas from southern Mexico, through Central America, to the Chocó in Colombia and Ecuador. It is replaced by the closely related chestnut-bellied seed finch in South America east of the Andes, as well as the valleys of Cauca and Magdalena in Colombia. The two have often been considered conspecific as the lesser seed-finch ("Oryzoborus angolensis"). The male is almost entirely black, with a small white wing patch.