Sanderling wading bird sandpiper foraging along coastal intertidal zone, tele

sanderling wading bird sandpiper calidris alba foraging shorebird wildlife birdlover birder coastal forage intertidal zone sandpipers mud flats marine bird birdwatcher seabird shallows wetland low angle tele drieteenstrandloper sandploughman birdlife coast birdwatching ornithology nature bird avian aves no people wild shore arctic breeder stout bill probing waterbird wader shallow focus shallow depth fauna birds bird behavior wilderness birding birdspotting bill