Pied Imperial Pigeon

Its taxonomy is confusing and remains unsettled. Notable features include sometimes included the Torresian, yellowish and silver-tipped imperial pigeons as subspecies. The widespread nominate subspecies of the pied imperial pigeon differs from all these by its plain white thighs and undertail coverts (though often with a dark spot at the very tip), and its narrowly dark-tipped bluish bill. For comparison, the other species' have black-spotted undertail coverts and thighs (spotting mainly near thighs in silver-tipped imperial pigeon), the bill of the Torresian imperial pigeon is greenish-yellow, and the bills of the yellowish and silver-tipped imperial pigeons are bluish at the base and yellowish at the tip. (Wikipedia, general species account).

Pied Imperial Pigeon is a relatively large, black-and-white pigeon found in forest, woodland, mangrove, plantations and scrub in Southeast Asia, from Myanmar and Thailand throughout Indonesia and east to the Philippines and the Bird's Head Peninsula in New Guinea. It is mainly found on small islands and in coastal regions (Wikipedia, general species account). others have suggested it should be considered an entirely separate species, D. melanura (for which the name black imperial pigeon has been used – an unfortunate choice, as only the tail has significantly more black than the other members of this group, and the name black imperial pigeon usually has been used for D. melanochroa). (Wikipedia, general species account).