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Grey in colour, yellow legs and brown beaks, is a medium-size heron, reaching 57 to 66 cm in length, wingspan of between 90 and 110 cm and reach an average weight of 400 grams. The species displays an unusual, non-sexual dimorphism, with some members having entirely white plumage and others being charcoal-grey. The reason for the colour variation or "morph", is unknown, though it is most commonly thought to be related to camouflage.
Spotted at Nusa Dua, Bali during low tide, costal reef area. They are found in many areas of Asia including the oceanic region of India, Southeast Asia, East Asia, Polynesia, and in Australia, Tasmania and New Zealand.
Is also known as the eastern reef heron or eastern reef egret. Kingdom: Animalia Phylum: Chordata Class: Aves Order: Pelecaniformes Family: Ardeidae Genus: Egretta Species: E. sacra