CLARK, Robert G; SUGDEN, Lawson G; BRACE, R Kent; NIEMAN, Daniel J. The relationship between nesting chronology and vulnerability to hunting of dabbling ducks. Wildfowl, [S. l.], p. 137–144, 1988. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/154718. Acesso em: 17 dec. 2025.