I just recently got a light Sussex and a black Minorca, they've been with me 2 days, I believe they are both approx 22-26 weeks old. For the first day I kept them in a small coop with a small run but today I've allowed them to roam about a pen approx 15'x15' and I've noticed that the Minorca is walking funny and sitting down a lot, her eyes are bright and she's eating and drinking ok, she'll walk normally for a few paces and then walks down on her honkers as if the bottom of her feet hurt then lie down! I have examined her and felt her all over and she isn't in any pain, her wings stretch out fully and she isn't wincing if I apply pressure to her back, thighs or legs? Because she was in a small run I didn't see a great range of movement until today, they will both eventually free range when my other hens and Rooster get used to them! She has no obvious injuries, has anyone experienced this before?