Jaman, M.F., Hoque, M.N., Sarker, N.J. and Rahman, M.S. 2013. Ecology and breeding biology of the pond heron, Ardeola grayii (Sykes, 1832) and its conservation aspects. Journal of the Asiatic Society of Bangladesh, Science. 38, 1 (Jun. 2013), 99–109. DOI:https://doi.org/10.3329/jasbs.v38i1.15325.