ESKE HOLM, Thomas; CLAUSEN, Preben. Kleptoparasitism as an important feeding strategy for migrating Wigeon Anas penelope. Wildfowl, [S. l.], p. 158–166, 2013. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/153578. Acesso em: 16 dec. 2025.