JAMWAL, P. S.; CHANDAN, P.; RATTAN, R. A rare sighting of the Long-tailed Duck Clangula hyemalis (Linnaeus, 1758) (Aves: Anseriformes: Anatidae) over a four-week period in northwestern India: first detailed scientific documentation in 73 years. Journal of Threatened Taxa, [S. l.], v. 9, n. 8, p. 10631–10632, 2017. DOI: 10.11609/jott.3084.9.8.10631-10632. Disponível em: https://threatenedtaxa.org/index.php/JoTT/article/view/3084. Acesso em: 27 nov. 2021.