I hatched my first chicks 12 days ago. They have been fine and growing until yesterday. I noticed that one was not running around as much as the the others. She was eating and drinking normally though. Today she is just laying there with her head down. If I try to pick her up, she will hold herself up on her wings and try to struggle away. The two larger chicks are standing over her and stepping on her now. I don't know what is wrong. Possibly Marek's?! They have not had medicated chick food and only have plain water. I don't want her to die. She was my first to hatch!!! Please help. Thanks.
Matt
Matt