HÖGLUND, J. Foraging success of Rooks Corvus frugilegus in mixed-species flocks of different sizes. Ornis Fennica, [S. l.], v. 62, n. 1, p. 19–22, 1985. Disponível em: https://ornisfennica.journal.fi/article/view/133167. Acesso em: 23 nov. 2024.