Saturday a hawk came down from the sky right after my silkie, She managed to escape by running into the our shed. I went and got her the first thing she did was let out this horrible scream. I held her for about 30 minutes, she seemed to be just fine. When I put her down no signs of injury nothing, head held up and walked right into the coop. That the next evening, she's laying on the bottom of the cage life less barely breathing. I picked her up and her head just fell, she acts as though she has absolutely no control to the neck. She moves her mouth and tongue but nothing to the neck, almost like her neck is broken.. At first I thought she was egg bound because I could see her trying to get and egg out. I put her in warm water and managed to get it out but had to hold her head up the entire time because again it would just fall.. Today 48 hours later still no signs of improvement. I thought for sure she would pass today but she is still breathing. Every 30 minutes or so, I did notice she her entire body would jerk. Head life less but rest of her body would jerk forward. Almost like she's having some sort of convulsions or something. I have no clue what do to, I tried to fed her but it only made the jerking movement worst and more frequent. I don't have the heart to cull her but not sure what else can be done at this point.