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75 cm. Adult non-breeding : White plumage, blackish downcurved bill,
necked head, upper neck and legs. In flight shows reddish skin through
underwing-coverts.
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Formerly resident, now no longer breed. Records are from Chiang Rai;
Nakhon Sawan (Bung Boraphet NHA); Buriram (Sanambin NHA);
Suphanburi (Tha Sadet NHA); Ayutthaya; Nakhon Prathom
(Kamphaengsan); Samut Sakhon (Ban Rang Chan); Phetchaburi (Ban
Laem); Prachuap Khirikhan (Khao Sam Roi Yot NP); Chumphon and
Phatthalung (Thale Noi WS).
