Large pink-backed pelican, pelecanus rufescens with greyish plumage, busy preening and cleaning wing feathers with its bill by the swamp on a sunny day at bird sanctuary, wildlife park, close up shot

pelican pelecanus waterbird preen beak bird plumage zoo ornithology wildlife animal conservation rufescens birdwatching langkawi singapore fauna large malaysia mangrove reserve species pale nature environment freshwater swamp natural arabia wing madagascar groom backed park habitat bill pouch lake africa clean water feather wild foliage shore pink sanctuary tree grey