ÅSTRÖM, M¨årten. Interspecific variation in time budgets among sympatric dabbling ducks. Ornis Svecica, Lund, Sweden, v. 2, n. 3–4, p. 131–138, 1992. DOI: 10.34080/os.v2.23055. Disponível em: https://journals.lub.lu.se/os/article/view/23055. Acesso em: 7 may. 2024.