A large, long-necked pigeon, more uniformly gray than other imperial-pigeons in the region. Overall very pale, with a dark blue tail, a pinkish wash to throat and chest, and a gray back and wings. Birds in the Admiralty Islands have green wings and back. Relatively coastal, preferring smaller islands. Perches conspicuously in the open. Similar to Pacific Imperial-Pigeon, but overall paler. Birds on the Admiralty Islands differ from juvenile Red-knobbed Imperial-Pigeon in their gray, not cinnamon, belly and underside. Normally heard giving a high-pitched “ahu ahu ahu ahu” call, falling in pitch and volume.