About fifty-six species of land-birds are known to inhabit this island, and of these, a kingfisher (Tanysiptera Boris), a honey-sucker (Tropidorhynchus fuscicapillus), and a large crow-like starling (Lycocorax morotensis), are quite distinct from allied species found in Gilolo.

The island is coralline and sandy, and we must therefore believe it to have been separated from Gilolo at a somewhat remote epoch; while we learn from its natural history that an arm of the sea twenty-five miles wide serves to limit the range even of birds of considerable powers of flight..