My 6 month old laced Wyandotte hen (1 of 4 from same flock- other 3 are fine) cannot stand on her feet and doesn't appear to have wing or leg injuries. I have watched her decline for 5 days, but she's still hanging in there taking water from a syringe and eating when food is placed in front of her beak and something is passing through because she's still pooping.. 3 days ago, I felt every part of her looking for signs of injury/pain, and when I came to her neck, I noticed it felt "out of place"- twisted over to her left side and very "full and hard feeling". She flops forward onto her head and left side when I put her down. The man from whom I bought her suggested I get Corid into her water and see if that helps thinking bacterial infection. (I'm treating the entire flock with it prophylactically). Here it is the 5th day, and I just can't help but think she's in pain at this point from hunger and dehydration. Does anyone know what this could possibly be? They free range, and this just came out of the blue (but after another hen was attacked by something and left dead in the pen/wondering if the Wyandotte pecked around the carcass and got sick?) Wondering if I should put her down at this point.