Phaethon indicus = Phaethon aethereus indicus, Indian Ocean subspecies of the Red-billed Tropicbird
Date 1898
Source Catalogue of the Birds in the British Museum. Volume 26
Author Joseph Smit (1836–1929)  
Source: https://commons.wikimedia.org/wiki/File:PhaethonIndicusSmit.jpg

The red-billed tropicbird (Phaethon aethereus), also known as the boatswain bird is a tropicbird, one of three closely related seabirds of tropical oceans. The scientific name is derived from Ancient Greek phaethon, "sun" and Latin aetherius, "heavenly". The red-billed tropicbird occurs in the tropical Atlantic, eastern Pacific and Indian Oceans.