I made a moveable tractor that I will be putting a bunch of my chickens in to move into an area that I cleared of puckerbrush last summer. I figure I will have a healthy lawn in that area by September. The problem is that there is poison ivy scattered around in that area. Will it affect my chickens adversely, or at all? I know they'll root out everything in their path, but I don't want to hurt them. Opinions? Suggestions?