california condor resting on a steel cross beam of the navajo bridge over the colorado river at marble canyon

america antenna arch area arizona beak beam bird braces bridge california californianus canyon cliff colorado condor cross desert extinction feathers ferry geology glen gusset gymnogyps highway landscape lees marble national natural nature navajo open outdoors page park plumage recreation resting river rock sandstone scavenger span spandrel species steel stone structure tagged threatened transmitter travel usa utah vulture