Ibrahim, T., and Y. Sani. “Relationship Between Egg Weight and Hatch Weight in Pigeons (Columba Livia)”. International Journal of Poultry Science 9, no. 6 (May 15, 2010): 599–601. Accessed September 22, 2025. https://ijpsjournal.org/index.php/ijps/article/view/1454.