flock of caspian terns, hydroprogne caspia, and west african crested terns, thalasseus albididorsalis

adult africa african albididorsalis animal background beach bird birding caspia caspian catching coast crested eating ecology elegant feather feeding fly food gambia habitat hydroprogne marin mate nature nobody ocean protected reserve sand sea searching shore surf tanji tern terns thalasseus tourism travel tropical wading watching water west wet wild wildlife