The white-breasted parakeet is long and weighs . The sexes are the same. Adults have a thin reddish brown band just above the bill and are brownish from forehead to hindcrown; the crown feathers have gray edges. Their cheeks are green with yellow giving a scaly appearance and their ear coverts are orange. A wide white collar surrounds their neck and the rest of their upperparts are green. Their breast is yellow and the rest of their underparts are green with a rusty tone on the belly. Their wing is mostly green with red primary coverts and dark bluish primaries. The upper side of their tail is dull reddish with a green base and the underside dusky with reddish tips to the feathers. Their bill is blackish and their iris is dark with bare white or whitish skin surrounding it. Immature birds are similar to adults but without the reddish frontal band; they also have paler ear coverts and a white breast.Collar, N. and P. F. D. Boesman (2020). White-necked Parakeet (Pyrrhura albipectus), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.whnpar1.01 retrieved March 13, 2023
