and Spotted Shags (Cormorants).   Shearwaters, such as the  Fluttering (Pakaha) and Sooty (Titi) , skim the waves.   The Grey-faced Petrel , Storm-Petrel and Fairy Prion , Caspian and White-fronted Terns , all frequent the waters, as do White-faced Herons , Kingfishers and a variety of Oystercatchers . Black Swans are found further