I had a hen who was fine then the next morning i went out she was holding her head sideways then she started walking sideways and lost her balance all the time but other then that she was normal scratching around and acting normal she just held her head sideways then she took a turn for the worst and would curl her neck under her and flap around then the next moment shed straighten her head and go back to normal and then i put her down. Could this have been new castle? Then i had a roo just be fine but a little hot and then the next morning he was dead. Sudden death is a sign. I am so worried I'm going to have to kill all my birds.Please help me. I have blood testing tonight will new castle come out in that if anyone has it?