My chicken was acting strange yesterday... standing up straight and just sitting there, I figured she'd be fine in the morning. I was wrong. She's on her side with no visible wounds (except her vent) won't open here eyes, I took her as dead. But she's breathing! and jerking her head every fourth breath. I assume this is hopeless... she won't respond if I touch her. Should I put her out of her misery? is recover possible?