RYDER, Ronald A. Some Movements of Ring-Billed Gulls Color-Marked in Colorado. Blue Jay, [S. l.], v. 24, n. 2, 1966. DOI: 10.29173/bluejay3095. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/3095. Acesso em: 1 may. 2024.