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 wildlife nature birds terns nesting migration avian behavior conservation coastal habitat delta ecosystem biodiversity waterbirds flight sandy beach natural habitat colonies ornithology birdwatching ecosystem tropical birds senegalese wildlife fauna marshlands feeding breeding season environmental protection wildlife sanctuary bird species animal behavior observation ecological reserve migratory birds wetland population habitat conservation ecological balance nesting behavior coastal ecosystem avian diversity caspian hydroprogne caspia breeding colony ile