MUNILLA, I.; GUITAN, J. Numerical response of Bullfinches Pyrrhula yrrhula to winter seed abundance. Ornis Fennica, [S. l.], v. 89, n. 3, p. 197–205, 2012. DOI: 10.51812/of.133806. Disponível em: https://ornisfennica.journal.fi/article/view/133806. Acesso em: 21 nov. 2024.