1. Martinez-Vilalta, A. and A. Motis (1992). Family Ardeidae (herons). In Handbook of the Birds of the World. Volume 1: Ostrich to ducks (J. del Hoyo, A. Elliott and J. Sargatal, Editors), Lynx Edicions, Barcelona, Spain. pp. 376–429.
2. Kushlan, J. A., and J. A. Hancock (2005). The Herons. Oxford University Press, Oxford, UK.
3. Wells, D. R. (1999). The Birds of the Thai-Malay Peninsula. Volume 1. Non-passerines. Academic Press, London, UK.
4. Mann, C. F. (2008). The Birds of Borneo: An Annotated Checklist. B.O.U. Checklist 23. British Ornithologists’ Union, and British Ornithologists’ Club, Peterborough.
5. Wells, D. R. (1999). The Birds of the Thai-Malay Peninsula. Volume 1. Non-passerines. Academic Press, London, UK.