I will be the lucky beneficiary of a donated flock of chickens next month - 10 hens and a rooster. I have heard mixed reviews on whether or not chickens are a blessing or a curse in the vegetable garden. I had thought they would eat lots of bugs for me, but will their scratching and digging be a problem? Or will they eat the plants? I'm responsible for a school's garden and we have plots all over the place, so fencing isn't really an option. Can you give a newbie some advice?