POULIN, B.; LEFEBVRE, G. Optimal sampling of booming Bitterns Botaurus stellaris. Ornis Fennica, [S. l.], v. 80, n. 1, p. 11–20, 2003. Disponível em: https://ornisfennica.journal.fi/article/view/133587. Acesso em: 23 dec. 2024.