The sternum as is under the head and around the breast?![]()
If she's egg bound, you should feel it in the vent, near the rear end. There are lits of good threads here on egg bound hens.
I'd be surprised if she was egg bount if she hasn't laid anything yet. She's probably just a late layer. She might have a hidey hole, too, if she's out.
If you can feel her keel bone sharply, you may think about worming her. Weight and body type vary from breed to breed, but if she's really underweight compared to others of the same age and breed, I would explore that. Good luck!
no the tip of the sternum underneath near the rear. noone knows what breed she is. its very hard to determine. she was supposed to be an ameracauna but.....shes not. and shes not an EE either. at least none ive seen. none of my hens are laying yet. so i am beginning to get concerned because they are all around 8 months old now. she has a different build than the rest and very thick feathering.