Lima, R.D. et al. 2020. Distribution and identification of the White-collared Kite Leptodon forbesi and the juvenile plumages of the Gray-headed Kite Leptodon cayanensis. Papéis Avulsos de Zoologia. 60, (Sep. 2020), e20206050. DOI:https://doi.org/10.11606/1807-0205/2020.60.50.