BRUZUAL, Iris; BRUZUAL, Iris. Feeding habits of whistling ducks in the Calabozo Ricefields, Venezuela, during the non-reproductive period. Wildfowl, [S. l.], p. 20–26, 1983. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/154251. Acesso em: 13 feb. 2026.