I have 2 responses to the comments above: Dont let your chickens eat English Ivy. Its toxic to them. Thankfully, they don't like it much. Also, the one person says it won't cause an allergic reaction. Uhm... Google that for pictures. I've had it on my arms so bad I had to get steroids and it still is healing, weeks later. So, now it's long sleeves and pant in out 100+ F temps we've had her lately.
