21 Sep 10. Black Bitterns. Late in spring we normally see the arrival of Black Bitterns to nest on the east coast of Australia. We have witnessed some early arrivals but this morning at least four individual were seen over the entire cruise area. Other good birds were Great-billed Heron, Papuan Frogmouth, Wompoo Fruit-Dove and Double-eyed Fig-Parrots.1 Sep 10. Pied Imperial Pigeons. The most obvious of our spring migrants are the Pied Imperial Pigeons who travel from the SE tip of Papua New Guinea each year to nest at low Isles. There is no food for them out there and they fly over to feed on fruit in the rainforest. Locally called Torres Strait Pigeons they have also been called Nutmeg Pigeons and Torresian Imperial Pigeons.
