Unlock thousands of full-length species accounts and hundreds of bird family overviews when you subscribe to Birds of the World. The Inca tern is a slender bird with slate-colored plumage. The … This bird is endemic to the Humboldt Current area. The inca tern is a blue-gray bird with unique white feathery tufts extending from its face, a red beak and a yellow wattle. More. Inca Terns breed along rocky coastal cliffs. RANGE: Inca Tern is found on the west coast of South America, from Ecuador and Peru, to Chile. Inca Tern is a superb and unique seabird with very peculiar plumage and head pattern, so different from other seabirds. The inca tern is an agile flier that will swoop and hover before diving after its prey. Each species account is written by leading ornithologists and provides detailed information on bird distribution, migration, habitat, diet, sounds, behavior, breeding, current population status, and conservation. Inca Tern breeds on the coasts with rocky cliffs and sandy beaches. Due to these differences, the Inca Tern is the only member of the genus “Larosterna”. Males and females look alike. Adult birds are easily recognized by their long white mustachial feathers extending from either side of the beak. The Inca Tern is a striking species of tern that is found along coastal Peru and Chile. It may frequent as well inshore guano islands as offshore islands along the rocky coasts. Species: inca.