RYAN, P G; BOSMAN, A L; HOCKEY, P A R. Notes on the foraging behaviour of Magellanic Flightless Steamer Ducks and Flying Steamer Ducks. Wildfowl, [S. l.], p. 29–33, 1988. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/154733. Acesso em: 17 dec. 2025.