801-1103 - Petroglyphs, created by the prehistoric Hohokam people, about 1000 years ago, West-Tucson Mountain District, Saguaro National Park, Arizona, United States of America, North America
801-1101 - Close up of a common barn owl (Tyto Alba), West-Tucson Mountain District, Saguaro National Park, Arizona, United States of America, North America
801-1104 - Petroglyphs, created by the prehistoric Hohokam people, about 1000 years ago, West-Tucson Mountain District, Saguaro National Park, Arizona, United States of America, North America
801-1105 - Flowers of the Jumping Cholla cactus (Hanging Chain Cholla) (Cylindropuntia Fulgida), West-Tucson Mountain District, Saguaro National Park, Arizona, United States of America, North America
801-1098 - Ocotillo cactus (Fouquieria Splendens) in foreground, Saguaro cactus (Camegiea Gigantea) in background, West-Tucson Mountain District, Saguaro National Park, Arizona, United States of America, North America
801-1100 - Saguaro Cactus (Camegiea Gigantea) silhouetted at sunset, West-Tucson Mountain District, Saguaro National Park, Arizona, United States of America, North America
801-1107 - Flower of the prickly pear cactus (Opuntia), West-Tucson Mountain District, Saguaro National Park, Arizona, United States of America, North America
801-1102 - Petroglyphs, created by the prehistoric Hohokam people, about 1000 years ago, West-Tucson Mountain District, Saguaro National Park, Arizona, United States of America, North America
801-1099 - Saguaro Cactus (Camegiea Gigantea) silhouetted at sunset, West-Tucson Mountain District, Saguaro National Park, Arizona, United States of America, North America
801-1106 - Teddy Bear Cholla cactus (Cylindropuntia Bigelovil), West-Tucson Mountain District, Saguaro National Park, Arizona, United States of America, North America
817-418645 - Gila Woodpecker Melanerpes uropygialis in the nesting hole in Giant Saguaro Carnegiea gigantea, Sonora desert, Saguaro National Park, Tucson, Arizona, USA
817-418646 - Gila Woodpecker Melanerpes uropygialis, in the nesting hole in Giant Saguaro Carnegiea gigantea, Sonora desert, Saguaro National Park, Tucson, Arizona, USA
817-295923 - scenery, landscape, cactus, cactuses, desert, sky, moon, full moon, Saguaro, national park, USA, America, United State. scenery, landscape, cactus, cactuses, desert, sky, moon, full moon, Saguaro, national park, USA, America, United State
817-175727 - Barn Owl (Tyto alba), sitting on Saguaro cactus and drinking from cactus flower, behavioural adaption on semidesertic conditions, Saguaro National Park, cactus desert, Arizona, USA
817-34707 - Giant Saguaro (Carnegiea gigantea) - Symbol of the American Southwest and indicator of the Sonoran Desert, At dusk.Saguaro National Park (western section), Tucson, Arizona, USA.
807-206 - Saguaro cacti and barrel cacti in bloom, Saguaro National Park, Rincon Mountain District, Tucson, Arizona, United States of America, North America
807-205 - Saguaro cacti and barrel cacti in bloom, Saguaro National Park, Rincon Mountain District, Tucson, Arizona, United States of America, North America