MAJEWSKI, P.; ROLSTAD, J. The detectability of Black Woodpecker: implications for forest bird censuses. Ornis Fennica, [S. l.], v. 70, n. 4, p. 213–214, 1993. Disponível em: https://ornisfennica.journal.fi/article/view/133384. Acesso em: 22 nov. 2024.