BROYER, Joël. Recent changes in pair abundance and breeding results in the main French populations of the Common Pochard Aythya ferina. Wildfowl, [S. l.], v. 69, p. 176–187, 2019. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/154464. Acesso em: 15 apr. 2026.