I have a hen[?] young and she can't walk today. I did the foot test vets do for dogs/cats with walking issues. I put one hand under her while she was standing on her own. With my other hand I grabbed the chicken's left foot and gently turned it back so it lays upside down. The chicken was able to flip that foot back to the correct position. The I did the same thing to the right foot. She couldn't flip it back. I lowered the chicken so more pressure was on the foot, then up higher, nothing. She cannot correctly move the leg. BTW, I band the right legs with plastic orange tags, hers is loose. I felt her leg and thigh, couldn't feel any issues. She isn't underweight. I let the chickens out this morning and all ran out, she tripped over the door and fell back in, that's when I opened the human door and watched her for several minutes. She would try to walk and fall on her chest, using her flapping wings to get up. She knew she couldn't walk right, I must of missed it yesterday. She would stand still just looking around, she made it out the human door, but sat still near the run's wall. What could be wrong with her? No other chicken is acting off. I brought her in the house. Gave her a chick waterer with vitamins in it. Any ideas???? She eats the crumbles I gave her, scratch and I made eggs for her. She ate those too. So her appetite has not been affected. Also found out that cats do not care if eggs catch fire and they might burn alive, lol, stupid cats. Aired out the house, cats stole the burnt eggs. Made another egg in the microwave, 40 seconds and their perfect! Won't be bothering with the stove no more. Never knew how fast eggs can be made...lol.