I have a bantam chicken. It is about 4 months old. I found her(I think) the other night when I went to shut my chickens up in the corner on the floor covered in mud. All of the other ckns. were up roosting and mud free. I brought her inside and washed all the mud off. I noticed that she was not acting right. I kept her inside that night and the next day took her back outside and put her in a different cage by herself. She is very weak, but she is eating and drinking and pooping too. She is limping. It seems that it is more noticeable on her right side. She stumples around and kinda walks like she has a peg leg. I checked on her this morning and she was on her back. She wasn't able to flip herself back over. I put her right side again and she stumbled away and fell a couple of times. I just now checked on her and gave her a really good look over. I noticed that her legs (both) looked dry and scaley. They have huge cracks in them. I also noticed that she had so type of little tiny brown bugs in her feathers and on her skin. And I noticed clear looking bugs too. Which I think are lice but I am not sure. I checked some of my other ckns (who are not sick but have been in contact with the sick one) and I noticed one brown bug and a few shiney clear things. Is this lice? How do I treat ALL of my ckns.? And what is wrong with my bantam? Can someone please help. I don't want to loose any of my ckns.