Forgive me if this is the wrong category to post this and but I wasn't sure where else to put it. Burrs sure are a pest to me and my children though! We moved to a six acre property in the fall. The previous owner let it get very overgrown for probably 4 of the acres. We are working on cleaning it up but one major problem we have are burr plants. We spent one whole day cleaning up probably a good half acre. There is a lot of wooded area on the property with burr plants mixed in that we have not gotten to and might not get to by the time our chickens are grown enough to go into the coop and free range a little bit. Do I need to be worried about the chickens eating the burs and if they do is it going to harm them? they are the big brown clumpy burs not the little tiny ones.