Synonyms: Maroon-backed Imperial Pigeon D. b. cuprea & D. b. insignis, Grey-headed Imperial Pigeon D. b. griseicapilla; [Nilgiri Imperial Pigeon], Mountain Imperial-Pigeon, Band-tailed Imperial-Pigeon, Bronze-backed Imperial-Pigeon, Grey-headed Imperial-Pigeon, Hodgson's Imperial-Pigeon, Jerdon's Imperial-Pigeon, Imperial Pigeon, Gray-headed Imperial-Pigeon, Band-tailed Imperial Pigeon, Bronze-backed Imperial Pigeon, Grey-headed Imperial Pigeon, Hodgson's Imperial Pigeon, Jerdon's Imperial Pigeon, Gray-headed Imperial Pigeon