Many of these poisonous plants are found in the average home and yard. These plants have different levels of toxicity – some can be nibbled on in small quantities with little or no harmful effects. When allowed to free-range, chickens are usually smart enough to avoid eating these toxic plants, so you don’t need to go and rip them out from your yard immediately in order to protect your flock. However, you do need to be mindful that you are not trying to feed these plants to your birds particularly (e.g. putting cuttings of these plants in the flock’s run where they are locked up and might feel compelled to eat these dangerous plants.