SORJONEN, J.; MERILÄ, J. Response of male Bluethroats Luscinia svecica to song playback: evidence of territorial of song and song flights. Ornis Fennica, [S. l.], v. 77, n. 1, p. 43–47, 2000. Disponível em: https://ornisfennica.journal.fi/article/view/133524. Acesso em: 18 maj. 2024.