sheep graze in a green meadow with green foliage, small christmas trees and huge oak trees in the background on a sunny summer day

agriculture animal background beilen bovine christmas countryside day drenthe dutch dwingelderveld dwingeloo dwingeloosche farming field flower foliage forest grass grassland graze grazing green groundcover heather heathland heide herd huge landscape livestock meadow national natural nature oak outdoor park pasture plant ruinen rural sheep sky small summer sunny terrestrial trees working