Here is a very pale and elegant-looking tern with a dark bill and long tail, producing a sort of extreme ‘Commic’ tern look. Of the regular British terns, only the Sandwich Tern and the Roseate Tern look as ghostly white as this bird. But those tail streamers and the dark tip to the bill rule out the former. So, this bird is already looking good for the latter species. But do the rest of the features back up this ID? The all dark bill is a strong feature of spring Roseate Tern, which usually develops a red base as summer progresses. There is a small amount of the right upperwing showing, which displays the contrasting narrow dark primary wedge of Roseate Tern. The tail streamers are even longer than on Arctic Tern. This is a classic spring Roseate Tern.
KEY FEATURES Very pale almost ghostly white tern Very long, loose tail streamers Nearly wholly black bill