SOLONEN, T. Breeding of the Great tit and Blue Tit in urban and rural habitats in southern Finland. Ornis Fennica, [S. l.], v. 78, n. 2, p. 49–60, 2001. Disponível em: https://ornisfennica.journal.fi/article/view/133547. Acesso em: 4 apr. 2025.