marsh sandpiper close up, (tringa stagnatilis) foraging on the shallow waters at bundala national park, sri lanka

animal behaviour beak beautiful beauty bill bird watching birding birds sri lanka birdwatching bundala national park environment feeding foraging freshwater grass habitat lake marsh sandpiper natural nature ornithology plumage reed searching shallow shorebird side view slim swamp tringa stagnatilis wader wading water wetland white wild wildlife conservation yellowlegs close waters