NIKOLOV, B. P. Reproductive success of the Woodchat Shrike Lanius senator in Western Bulgaria. Ornis Fennica, [S. l.], v. 82, n. 2, p. 73–80, 2005. Disponível em: https://ornisfennica.journal.fi/article/view/133635. Acesso em: 5 apr. 2025.