Sooty Tern Sterna fuscata flock circling the skies before roosting on Bird Island, Seychelles in April.

- Image ID: BCWR3H
Sooty Tern Sterna fuscata flock circling the skies before roosting on Bird Island, Seychelles in April.
Oliver Smart / Alamy Stock Photo
Image ID: BCWR3H
Location: Bird Island, Seychelles