PULLIAINEN, E.; JOENSUU, O. Flocking of male Capercaillie Tetrao urogallus at feeding sites in Ostrobothnia, W Finland. Ornis Fennica, [S. l.], v. 58, n. 3, p. 131–133, 1981. Disponível em: https://ornisfennica.journal.fi/article/view/133075. Acesso em: 23 nov. 2024.