Terns

Where to see terns

© Ed Marshall

Terns

During the summer, several species of tern return to nest on our shores, and increasingly on islands and inland reservoirs. Similar to a small, elegant gull with a long swallow-like forked tail, slender wings and a black cap setting off the silvery grey plumage, small differences set the five species that nest here apart. The most widespread is the common tern, which despite its name is not actually the commonest; that title goes to the closely related Arctic tern, whose colonies nests on northern coasts and islands. Visit a tern colony but don’t get too close to the notoriously feisty tern parents. A hat may come in handy!

A tern colony is a noisy, hectic thing, with birds continually coming and going, adults bringing fish back for their chicks or their sitting mate, young birds calling for their parents, and angry adults chasing off intruders with their dagger-like bills

Find terns

Our top spot to see these birds is Cemlyn Bay in Anglesey. Separated from the sea by a spectacular, natural shingle ridge called Esgair Gemlyn, this lagoon is the backdrop for Cemlyn’s most famous wildlife spectacle: a large, internationally important seabird colony. Experience these elegant birds close-up from the viewing area on the ridge. See them chase and dive in courtship displays; incubating eggs; preening and bathing in the lagoon; or calling to hungry chicks as they come bearing freshly-caught fish. The best time to visit is May to July, when wardens are on site who can give you lots more information.

What to look out for

One of the easiest ways to tell the different tern species apart is by looking at their bills. Carrot red with a black tip makes it a common tern; blood red is an Arctic tern; black with a yellow tip (together with a shaggy black crest) tells you you’re looking at a Sandwich tern; while the tiny little tern has a yellow bill tipped with black, as well as a white forehead. Beware: terns are quick to turn on intruders, so don't get too close, or perhaps just take a slightly taller friend with you.

If you can't get to these places

The Wildlife Trusts have live webcams at two tern colonies, beaming live images during the summer from Brownsea Island in Dorset and Montrose Basin in Scotland.

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