Sarlin, Pathissery John, and Savio Morris. “Red-Rumped Swallow <i>Cecropis daurica< I> (Laxmann, 1769) Adding Concrete Mortar Mix to Mud Nest”. Journal of the Bombay Natural History Society (JBNHS) 118 (January 31, 2021). Accessed June 20, 2025. http://bnhsjournal.in/index.php/bnhs/article/view/151243.