Western Marsh Harrier flaps wings and glides through cloudy sky, tracking follow

western marsh harrier flaps wings glides cloudy sky tracking follow western marsh harrier circus aeruginosus wildlife nature wild raptor circus aeroginosus predator animal prey natural flight wing hawk brown hunter beak feather birdwatching fauna beautiful outdoor ornithology bird of prey background fly white aeruginosus outdoors biology animals birds zoology blue adult slow motion