PULLIAINEN, E.; ESKONEN, H.; HIETAJÄRVI, T. Note on the breeding of the Ring Ouzel Turdus torquatus in Finnish Lapland. Ornis Fennica, [S. l.], v. 58, n. 4, p. 175–176, 1981. Disponível em: https://ornisfennica.journal.fi/article/view/133081. Acesso em: 18 may. 2024.