KOSKIMIES, P. Digital birds at your fingertips – The Birds of the Western Palearctic by BirdGuides Ltd (2004). Ornis Fennica, [S. l.], v. 82, n. 4, p. 172–174, 2005. Disponível em: https://ornisfennica.journal.fi/article/view/133646. Acesso em: 22 marras. 2024.