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75-78 cm. Blackish plumage with contrasting white neck-ruff, lower back
and rump. Greyish-brown naked head and longish neck pale bluish-grey
with dark tip and dark cere.
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This species was once resident throughout, now close to extinction.
Formery records are from Chaing Mai; Uthai Thani; Bangkok; Ratchaburi;
Phetchaburi; Ranong; Surat Thani; Trang; Satun; Pattani and Yala.