brown pelican pelecanus occidentalis urinator, galapagos subspecies, on a rock at north isabela island

america animal archipelago ashore avian beak bird black blue brown cleaning cliff coast coastline color ecosystem ecuador endemic environment feather feathers galapagos geology geomorphology habitat island islands marine national natural nature north occidentalis ocean ornithology park pattern pelecanus pelican plumage preening rock sea seymour south subspecies travel urinator wild wildlife