Pasific Reef - Egret ( dark plumage )

Largish ( 58 cm ) white and charcoal grey heron. Dimorphic : The commoner grey from distinguished by uniform grey plumage with short crest and whitish chin. White form is distinguised from Cattle Egret by larger size and narrow head and neck, from others egrets by relatively shorter greenish legs and pale bill. Iris - yellow, bill - pale, feet - green.