extraordinary birds oilbird steatornis caripensis in its natural environment, dark cave, nesting on rock. birds use a form of

america american animal avian background beak bird camouflage caribbean caripensis cave cliff colony countryside dark eating echolocation edge environment fauna feathers flight fruit fruiteating guacharo migratory nature nest nightjars nocturnal oil oilbird outdoor outdoors palm plumage rock shy south species steatornis tobago trinidad tropical two venezuela white wild wildlife wings