I am a new chicken mommy , well really 10 chickens, that I bought from the feed store a month and a half ago. I have four peafowl that have their own run and the chickens have their's too, but I would like them to roam in the horse pasture on roatating days. Some people have both together, others say no. I have been worming both chicks and peafowl with the fenabenazole in the water. Are chickens born with worms? I know the cecal worm eggs carry blackhead,but how do I know if my chickens have blackhead etc:/?