One of our 24 week old pullets turned up with her right wing hanging down to the ground. She was sluggish and didn't move around much, nor did she forage with the others when out in the yard. I palpated her wing, but was unable to discover any fractures. I thought it might be a hairline, or possible a damaged tendon or muscle. I figure 8 wrapped the wing to help keep it in correct position for healing. She acted as if she couldn't walk with the wrap, so I adjusted it. The next day I decided to crate her to isolate from the others and keep her quiet for healing. In the morning she was stuck in the corner of the crate, upside down, with her head twisted. so I thought I would see if she would do better propped up in a nest box in the coop since she's very bonded with the other barred rock and might like company. Before I could come back with fresh water, she had gotten out of the box, down the ramp and was upside down under it. I put her back in the crate. propped up and she ate and drank a bit. The next day she couldn't stand up, She can move her legs and toes, but doesn't seem to be able to get them under her. When I stand her up, she just falls over to the side, and her hock joint seems to be stiff. These pullets were vaccinated for Marek's, are on a good quality feed, but have not started laying. They have a clean coop, outside fenced yard, and are free range when I'm home. Any advice as to what could be going on and what to do next would be greatly appreciated!