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

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