Caspian Terns (Hydroprogne caspia) at breeding colony on Ile des Oiseaux in the Parc National du Delta du Saloum, UNESCO World Heritage Site, Senegal, West Africa, Africa

senegal national park wildlife birds nesting courtship colony behavior avian migratory birds sandy shores coastal ecosystem biodiversity nature conservation waterbirds tropical environment ornithology habitat feeding reproduction nesting season ecological site birdwatching natural habitat senegal river marine life environment fauna shorebirds coastal birds terns group behavior ecology sandy beach habitat preservation skimming aerial display sandy islet social interaction river delta wildlife sanctuary saltwater habitat species conservation natural reserve caspian hydroprogne caspia