Flock Of Swallows Flying On A Coordinated Patterns On The Sky Under The Rural Area In Gouda, South Holland

river view landscape riverscape riverbank riverside gouwe horizon holland netherlands waterway murmuration south terrain rural nature landscape waterscape sky gouda aviary grassland area meadow flying building swallows tree travel beautiful nature flight flock of birds swallow flora destination formation outdoor birds flock group pattern structure natural patterns wildlife animal wildlife animal coordinated