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66-81 cm. Large wild duck, all dark chestnut brown body, contrasting strongy with whitish head and upper neck with variably mottled blackish; lesser and median upperwing coverts and inner edge of tertials white, secondaries bluish-grey. Bill is black-mottled orange. female : smaller and slightly duller in coclor.
ระบบนิเวศ :
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Pool and rivers in forest, freshwater swamp forest, up to 900 m.