Over the past weeks since we got the chickens I have noticed that one bird, I dont know for certain which one, has been pooping loose watery stool with signs of blood. I have been waiting to see if it would clear up and it hasnt. This morning as I was cleaning the coop I picked up a piece of it and looked closely. It looked like along with the poop were numerous little white worms. I guess I know the answer to my question. The chicken has worms. The question is what is a good dewormer to give to all of them and how is it administered. Please do not say an injection. By the way, all of them appear normal and act normal without any other visible signs or symptoms of illness.