Jaman, M. F., Hoque, M. N., Sarker, N. J., & 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), 99–109. https://doi.org/10.3329/jasbs.v38i1.15325