This is a breeding plumage adult showing a mostly black mandible and new nape plumes. Some authors place this species in the genus Ardea. Two to six subspecies are recognized by various authors depending on whether they split it into Little, Western Reef, and Dimorphic egrets or lump all three into one highly variable Little Egret. Clements takes a middle road, splitting Western Reef, but lumping Dimorphic while IOC splits all three. This is the widespread nominate E. g. garzetta which has grayish lores. Canon PowerShot SX60 HS.
References:
Kushlan, J.A. and Hancock, J. (2005) Herons. Oxford University Press, Oxford.
Rasmussen, PC & Anderton, JC (2005). Birds of South Asia. The Ripley Guide. Washington DC and Barcelona: Smithsonian Institution and Lynx Edicions.