Just hang some old Cd-roms over the sets and the birds will leave
them
alone. They obviously don't like the flashes.
Use a cane pushed in to the ground at an angle and tie string on the
top end
like a fishing rod and the Cd on the end of the string so the wind
moves it.
Works for us.

Yes but they make a hell of a grinding noise when you put them back
into the CD player :-|