I have new chickens that I picked up on Saturday. They were pooping fine when I picked them up, I had viewed the coop they were in and noticed nothing but semi solid normal looking chicken poo. Now that they are at my home, two are pooping runny. could this be the move and stress related? I am fairly certain that they have not been wormed, and I have read all the posts about runny poo, but it isn't foamy , just runny. Any thoughts?