I ran across an obscure little outfit that makes the most amazing cure
for problems with pesky night critters. Man these work! Check out:

http://hometown.aol/dcjincks/myhomepage/business.html

The guy that makes these is He'll send
prices and model info if you ask.
I had deer and coons just stripping my place and coyote killing my
yard birds and pet cats. A little $60 gadget fixed all that - for my
entire 3 acres!