Easter Egger unable to get back into coop

[HoneyBeeHomestead]

Thanks everyone for all your replies. After reading through them, my new theory is this... In the morning, when we let everyone out, we give them all a few treats, and they all come running out. I'm thinking she gets so excited in the morning that she is able to mindlessly jump over the ledge like everyone else. But then, when she calmly goes back at night and starts thinking about going back in, she can't remember how she jumped over it in the first place. As to why she hasn't learned even with me showing her? I'm not sure. Maybe she's just very dense, as some of you suggested. She does want to go in and roost, as she waits by the door. She walks, roosts, and jumps over it in the morning fine, so no obvious injuries or soreness.
I will try the cinderblock and see if she is smart enough to figure out how to jump up there first. I haven't yet because I'm not sure she'd make any attempt to jump up there. As it is now, she makes no attempt to get in besides standing there, and will spend the night outside if I don't put her in. But maybe a small change in the scenery by the door will help her get around the mental block.

 

[BigBlueHen53]

Keep us posted. I think I am more interested in animal behavior than I am in sickness and injuries.

 

[BigBlueHen53]

Do you say she jumps over it from this direction during the day? She will jump over to go IN during the day but not at dusk/ night? If this is the case please post good pics of both her eyes and tell us, what direction does the door face?

 

[BigBlueHen53]

It's dark inside. I'm thinking the problem may be visual. She can't see what's on the other side of the barrier. Is it a 1,000 foot abyss? Are there monsters waiting to eat her? Lighting the floor on the inside may resolve her fears.