RICHARD R. HANSEN / SCIENCE PHOTO LIBRARY RICHARD R. HANSEN / SCIENCE PHOTO LIBRARY
A critically endangered California condor (Gymnogyps californianus) in flight over the Pacific Ocean. All but one of the California condors in the wild have been wing-tagged. The attached ID tags and radio transmitters are used in population and distribution studies and help with a recovery program.
Model release not required. Property release not required.