My chickens have been through a lot lately and in general I somehow ended up with a very skittish flock. Recently, two were killed by my dog, which was awful. Well, tonight I went out after dark to close up their coop and there they were, waiting by the run door. I thought omg what now... Well, there was a little woodrat chewing on their flock block! They were scared to death and wouldn't go near it, which they had to do in order to roost. I had to open up the back of their coop so they could go in that way. Ugh. Is this normal?