Comparative anatomical study of oesophagus in two birds, Iraqi black partridge (Francolinus francolinus) and White breasted kingfisher (Halcyon smyrnensis ) . Journal of Madenat Alelem, [S. l.], v. 8, n. 1, p. 146–157, 2016. Disponível em: https://journal.mauc.edu.iq/index.php/JMAUC/article/view/137. Acesso em: 23 feb. 2026.