Swan Bay, adjacent to Queenscliff, is an important feeding ground for waterbirds and migratory waders. The Mud Islands, off Sorrento, are an important breeding habitat for white-faced storm petrels, silver gulls, Australian pelicans and Pacific gulls. Salt marshes in the northwestern sections of the bay, such as that in the Werribee Sewage Farm and the adjacent Spit Nature Conservation Reserve, are within the Port Phillip Bay (Western Shoreline) and Bellarine Peninsula Ramsar Site, listed as wetlands of international importance under the Ramsar Convention, and the critically endangered orange-bellied parrot is found at three wintering sites with saltmarsh habitat around Port Phillip and the Bellarine Peninsula. A variety of seabirds, such as Australasian gannets, nest on artificial structures in the bay.