I have heard that cedar is no good for chickens. Well, I have been racking my brains as to what caused some strange symptoms in my RIR cockerels (that I ended up culling) and I just had a thought that maybe it was something related to cedar. THe coop is a pole barn type and we made the poles out of cedar trees. I just noticed that the cedar posts have been stripped of all the bark by the chickens! and I was wondering what the symptoms of cedar exposure would be?