COLLIN, A. Grön lövsångare, Phylloscopus nitidus viridanus (Blyth). Ornis Fennica, [S. l.], v. 4, n. 2, p. 41–44, 1927. Disponível em: https://ornisfennica.journal.fi/article/view/132182. Acesso em: 27 dec. 2024.