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52-54.5 cm. Thick yellow bill, grey nape to mantle, brown upperpart, flanks
and undertail-coverts,green legs and feet. Male : black throat and upper
foreneck with white border, black forecrown and line along crown-side,
eyes dark brown. Female : throat and upper foreneck and forelores whitish,
yellow eyes.
ระบบนิเวศ :
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River in evergreen forest, swamp forest, mangrove