Black Bakok bird

Hallo!
http://www.lihir.info/19-kastom/lkea/kabelbel
„This is one of the last songs sung as the travellers approach the land. The song invokes the image of the black Bakok bird with its long neck and legs that is regularly seen catching fish from the reef. The song calls upon the Bakok bird to fly with them; just as Bakok bird always hits its target when diving for fish, so too the Bakok bird will bring them home.“

Im Gegensatz dazu:
http://www.birdinginmalaysia.com/details.php?bird_id=339 Hier heißt die Große Grüntaube Bakok.
Gibt es einen Schwarzen Bakok, der nach Fischen taucht?
Gruß,
Eva