RÄTTI, O. Characteristics and level of aggression by female Pied Flycatchers at different distances from the nest hole. Ornis Fennica, [S. l.], v. 77, n. 1, p. 11–16, 2000. Disponível em: https://ornisfennica.journal.fi/article/view/133520. Acesso em: 24 nov. 2024.