JÄRVINEN, A. Interspecific hybridization between the Siberian Tit Parus cinctus and the Willow Tit Parus montanus produces fertile offspring. Ornis Fennica, [S. l.], v. 74, n. 3, p. 149–152, 1997. Disponível em: https://ornisfennica.journal.fi/article/view/133468. Acesso em: 18 touko. 2024.