MCCUTCHEON, N A; YDENBERG, R C. Harlequin Duck Histrionicus histrionicus distribution and stone.y nymph availability in the Maligne Valley watershed a preliminary study. Wildfowl, [S. l.], p. 75–82, 2013. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/153956. Acesso em: 17 dec. 2025.