KARLSSON, S. Food consumption and roosting behaviour of Great Grey Shrikes Lanius excubitor wintering in south-western Finland. Ornis Fennica, [S. l.], v. 84, n. 2, p. 57–65, 2007. Disponível em: https://ornisfennica.journal.fi/article/view/133681. Acesso em: 18 touko. 2024.