Someone told me that I could let my chickens just "have at" my garden and they would completely debug the garden but wont touch the vegetables...someone else told that they will ravage the garden quickly of EVERYTHING. What is your experience with this? If I taken them (5 Buff Orpingtons) in the garden with me will they get after the bugs first and then after a while Ill just escort the girls out, saving the plants from thier destruction...or is chicken+vegetable garden just a bad idea (as far as the harvest is concerned)?