Some people put up a hedge for privacy, to keep creatures in or out, for decoration, or for any number of other reasons.
Now this is a Hedge (click on the image for a full-res version): 
Hedge
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The Wild Corvid Chase
Bluejay's bird's-eye view
We are wont to imagine rate and delectable places in some remote
and more celestial corner of the system, behind the consellation
of Cassiopeia's Chair, far from noise and disturbance. I discovered
that my house actually had it's site in such a withdrawn, but
forever new and unprofaned, part of the universe. - Henry David Thoreau, "Walden"