Terns are sleek birds with long pointy wings, and a pointed sharp beak for spearing fish. The crested tern is common to coastal areas of Tasmania, and often seen in the Derwent estuary. They are easily identified by a crest or spike of feathers on their head. In the breeding season (November to March) this crest is black and is often raised, while during the rest of the year it is grey. Tern usually nest in colonies of 10 – 100 birds. They nest in shallow scrapes in the ground. Crested terns feed by plunging into the water to take small fish, squid and crustaceans. They will often follow fishing boats and take discarded fish.