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Great-billed Heron

Common name for a wading bird in the heron family Ardeidae, with the scientific name Ardea sumatrana. Adults are 114 to 115 centimeters tall and their plumage is overall grey. It resembles the somewhat taller White-bellied Heron, but has a slightly brownish shine, a shorter neck, a less defined pale throat, and a dull greyish belly and vent. Furthermore, the Great-billed Heron has yellow irises, grey legs and a dark grey bill, which is slightly pale-yellowish on the underside, near the base. Its facial skin is pale-yellowish to grey. In the breeding season, the plumes on the scapulars and are less dull.