A

The Arctic tern is similar to the common tern but with a smaller body, a shorter beak, head and neck, a longer tail, shorter legs and narrower wings. In the summer, an adult bird’s beak is dark red, the throat, breast and belly are a pale grey and long tail feathers hang over the tips of the rectrices when the bird is standing. The top half of the wings is uniformly light grey, and all flight feathers are whitish.