Damn Skunks!

Just maybe!! I don't know first hand how well these work

[ame="http://www.youtube.com/watch?v=Cbb-_lgDjWE"]Yard Gard Electronic Pest Repeller - YouTube[/ame]

If you have a building they can get under this does work!! for sure

[ame="http://www.youtube.com/watch?v=6Z_JUc2W54s"]Keep Skunks Away Christopher James Unsolicited Advice - YouTube[/ame]

I have (and I am sure you have) built a simple box trap, Made to catch Rabbits, but I remember catching more skunks then Rabbits, it sounds like you have a family of skunks near by so this would be another way to get rid of the pests family one at a time ..