ACHARYA, B.; VIJAYAN, L. Status and distribution of endemic and threatened birds of the Eastern Himalaya in Sikkim, India. Journal of Threatened Taxa, [S. l.], v. 2, n. 2, p. 685–689, 2010. DOI: 10.11609/JoTT.o2257.685-9. Disponível em: https://threatenedtaxa.org/index.php/JoTT/article/view/462. Acesso em: 4 dec. 2021.