Monotypic. Rather similar in appearance
to Arctic Tern which breeds around the Arctic but spends the non-breeding
season in waters used by Subantarctic Terns.
Medium sized tern, rather reminiscent of Arctic
Tern. In breeding birds, the bill, legs and feet are bright red. The
body plumage is pale gray with a faint whitening at the boundary of the
solid black cap.
Where and When
Breed oon Tristan da Cunha, Gough Island, Iles
Kerguelen, St. Paul and Amsterdam Island, South Georgia, South Sandwich
Islands, South Orkney Islands, South Shetland Islands, the Antarctic Peninsula,
some New Zealand subantarctic islands, Macquarie Island and Heard Island.
Return to colonies in September or October. Form loose colonies which rarely
exceed more than 40 widely-spread nests in any one spot.
Downes, M. C. (1952) Arctic terns in the subantarctic. The Emu 52. 306-310
Marchant and Higgins (1990). Handbook of Australian, New Zealand and Antarctic Birds Vol 3. Oxford University Press.