Feeding ecology of Javan Pond Ardeola speciosa and Cattle Egret Bubulcus ibis in North Sulawesi, Indonesia, with additional notes on the occurrence of ardeids - Vermeulen, J. W. Charlotte; Spaans, Arie L. (Arnhem : Research Institute for Nature Management, 1987)
References: p. 31-32
Keywords: Herons -- Indonesia; Cattle egret -- Indonesia