Gonna lay down a tiny bit of Sick Wisdom

on you, from a couple who have kept chickens for a few years now.
Mind you, this is hard-earned Sick Wisdom

, and is distilled into a few phrases. It may seem silly, but as time goes on you will hopefully come to a similar conclusion with your beautiful girls.
Ready?
Really ready?
- Chickens are silly.
- They are simultaneously incredibly fragile and amazingly resilient.
- They are creatures of habit.
That's our Sick Wisdom

for today.
Now, roosting bars: great!
Ventillation: necessary!
Can they possibly also see light while their heads are out, as opposed to the dark inside the coop? If so, a small (Dollar General) lantern in the coop for 2-3 nights might help them figure things out. Doesn't have to be all night, just for an hour or so until they go to bed.
Hopefully we have given you a little more food for thought for tonight. Good luck!