YOUNG, B. E. Y.; ZOOK, J. R. Observation frequency and seasonality of marine birds off the Pacific coast of Costa Rica. Revista de Biología Tropical, [S. l.], v. 64, n. S1, p. 235–248, 2016. DOI: 10.15517/rbt.v64i1.23453. Disponível em: https://revistas.ucr.ac.cr/index.php/rbt/article/view/23453. Acesso em: 23 nov. 2024.