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Genus Caloenas
Caloenas maculata - The Liverpool Pigeon or Spotted Green Pigeon is a presumed extinct pigeon species from an unknown provenance.
Nicobar pigeon - This is a large pigeon, measuring 40 cm in length. The head is grey, like the upper neck plumage, which turns into green and copper hackles towards the breast. The breast and remiges are dark grey. The tail is very short and pure white. The rest of its plumage is metallic green. The cere of the dark bill forms a small blackish knob; the strong legs and feet are dull red. The irides are dark.