Elegant terns (Sterna elegans) nesting on Isla Rasa in the middle Gulf of California (Sea of Cortez), Mexico

animal animal age animal group animalia animals adult adult animal adult animals animal theme animal themes bird birds color images color color image colour image colour images colour colonies colony days day elegant tern fully grown gulf of california habitat habitats horizontal horizontals isla rasa landscape large group of animals lgoa mature natural phenomena natural phenomenon natural world natural worlds nature nest nesting nests no one no people no person no body no one nobody ocean outdoors outside pacific ocean pacific sea of cortez sea of cortes sterna elegans sea bird sea birds sea seabird seabirds seas seas and oceans tern terns the sea of cortes water s056 s056 te