71465728 - Woman hiking standing in Guano Cave and looking out to sea, Otter Trail, Tsitsikamma Section, Garden Route National Park, Eastern Cape, South Africa 13829601 - Guano covered rocky island, Sea of Cortez, Baja California, Mexico13829581 - Guano covered rocky island, Sea of Cortez, Baja California, Mexico13986819 - Portrait of African darter (Anhinga rufa) in profile,perched on a dead log stained with guano,looking back over it's shoulder in Chobe National Park,Chobe,Botswana13777669 - Brown Pelicans (Pelicanus occidentalis) perch on guano-covered rock at Point Lobos State Natural Reserve with Monterey Peninsula in the background; California, United States of America13986892 - Close-up portrait of a reed cormorant,(Microcarbo africanus) standing on a guano stained log in a river,Chobe National Park,Chobe,Botswana70366703 - PERUVIAN BOOBY sula variegata ON BALLESTAS ISLANDS IN PARACAS NATIONAL PARK PERU GUANO PRODUCER71210907 - Gentoo penguin (Pygoscelis papua) colony and guano covered snow, Chilean Gonzalez Videla Station, Waterboat Point, Antarctica, Polar Regions
