ruff close-up portrait photo a beautiful mid-sized migratory wading bird photographed in bundala national park

northern eurasia sand piper adorable closeup natural portrait aquatic birds sri lanka bundala national park wildlife reflection looking morning wetland habitat conservation wilderness wading bird shorebirds cute colorful background calidris pugnax ruff water behavior pretty shore migratory birdwatching beautiful ornithology wader nature beak wild lake shorebird plumage marsh river environment close-up mid-sized photographed