SEYMOUR, Norman R; MITCHELL, Sean C. American Black Duck Anas rubripes and Mallard A. platyrhynchos abundance,occurrence of heterospecifi c pairing and wetland use between 1976 and 2003 in Northeastern Nova Scotia, Canada. Wildfowl, [S. l.], p. 79–93, 2013. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/153975. Acesso em: 17 dec. 2025.