Comoro olive pigeon

The Comoro olive pigeon (Columba pollenii), also known as the Comoros Rameron pigeon or simply the Comoro pigeon, is a species of bird in the family Columbidae. It is found in Comoros and Mayotte. It is becoming rare due to habitat loss.

Easily distinguishable from other pigeon species, the Comoros olive pigeon is the largest bird in the Comoro Islands. It has a dark plumage. Adolescent pigeons have a bright yellow bill, whereas older ones have a dull green or brown bill. The Comoros olive pigeon makes a very deep coo of "guk-ohoooo hoo hooo".