Is there any way to keep the chickens out of my shade garden? I had lovely ferns, hostas, etc. but they have scratched and picked till it's shot. Is there any kind of natural formula for keeping them out? I don't want to do something to kill them, like spreading moth ball chrystals, they would probablly eat them! No way can we keep them penned up..they are cage free and happy. I put up a 2 foot picket fence around it, but they still fly over it and continue scratching and rolling around in the cool earth there. Rats! Is there a solution?