I spent a week flying from a field near to @AnonymousBosch a few years ago. The field was full of sheep and they much preferred grazing on the shorter grass on the strip. They'd learned over time to wander off to the side of the strip whenever anyone was landing or taking off. The only exception I can recall is the strip's famous "jumping sheep", that allegedly leapt up and hit the wing strut of a friend's aeroplane...