I was cleaning up my garden for the winter a few days ago and cut down/dug up the green pepper and eggplant plants(probably 4 very large eggplant and 3 pepper plants) and put them in a wheelbarrow. Then I put the swiss chard and old bean plants and old tomatoes and a couple overripe watermelons and squash on top of them. I dumped the whole thing in the chicken pen for them to clean up forgetting that the pepper and eggplant plants were in there and poisonous. The birds(30) had all the leaves stripped off all the plants in less than 5 minutes and I didn't even think about it until yesterday. It has been 3-4 days ago now and there have been no fatalities so I'm hoping I got lucky (although if any die I hope it's the nasty little Golden Comets and not the EE's or Marans). They have not been free range chickens (just an enclosed outdoor run) but was considering letting them out for a few hours occasionally. Now my concern is how do I keep them from eating poisonous plants around the farm or in my garden? Will they naturally avoid them if they have other things to forage for? Or is that giving them too much credit?