KAINADY, P. V. GEORGE. “Development of Temperature, Regulation in Nestling Common Swallows Hirundo Rustica”. Bulletin of Basrah Natural History Museum 3, no. 1 (January 1, 1976). Accessed April 19, 2025. https://bjnhm.uobasrah.edu.iq/index.php/nhm/article/view/39.