These seabirds are commonly found on Norfolk Island and its surrounding islands.
The Norfolk Island Post have issued stamp sets comprises of five stamps and one souvenir sheet as the second part of the Seabirds Definitive issue.
The Wedge-tailed Shearwater visits the island in its thousands over the summer and is distinctive of its mournful call in the evening.
The Sooty Tern is found in large numbers on offshore Phillip Island, where females lay a single egg on the barren soil.
The graceful White Tern lays its egg on a branch high up in the Norfolk Pine trees. Amazingly, the egg, followed by the young juvenile survive there on the branch for many months and throughout all types of weather.