The long-tailed honey-buzzard is endemic to New Guinea and adjacent areas: it is present on most of the island and on many of the small islands just off the western half (Indonesian Irian Jaya), including Biak, Noemfoor, and Aru. | The long-tailed honey-buzzard is endemic to New Guinea and adjacent areas: it is present on most of the island and on many of the small islands just off the western half (Indonesian Irian Jaya), including Biak, Noemfoor, and Aru. |