Basha, W. A., S. A. Hassan, E. M. Saad, A. M. Salah-Eldein, and A. K. . Elsayed. “Adaptive Interplay Between Feeding Preference and Structure of the Upper Digestive Tract in African Green Bee-Eater (Merops Viridissimus Cleopatra)”. Journal of Advanced Veterinary Research, vol. 13, no. 10, Jan. 2024, pp. 2078-84, https://advetresearch.com/index.php/AVR/article/view/1661.