Ok, now I know this question might not fit the category, but in this case the chickens may be the Predators or Pests in question, We have a chihuahua who loves our chickens as much as we do. Whenever it's time to check them, he freaks out and gets excited, and speeds out the door. Is there any diseases that can harm him? Like eating chicken poop or anything? I googled it and found nothing.