Flight of grey heron (Ardea cinerea) over the Senanayake Samudraya Lake, Gal Oya National Park, Sri Lanka, Indian subcontinent, South Asia

grey heron flight sri lanka wildlife south asia birdwatching nature lakes landscape tranquillity avian waterbirds evening light migration rivers mountains flora fauna ecosystem outdoor serene graceful natural habitat avifauna animal behavior conservation wetlands ecological balance aerial view scenic biodiversity beauty peaceful lakeside flying birds travel adventure sky dusk setting