I let my 9 week silkie chicks out this morning and Vera (although I now think shes a he) looked like she had a broken neck - her head just hangs there. We brought her in and within 10 minutes she was standing and chirping. I thought perhaps she had knocked herself dazed in her scramble to run out so I put her back out with the other 5. I watched her for about 10 minutes and she was doing her normal chicken things. 2 minutes later she laid on the ground, I rushed out and it had happened again. It looks like her neck is broken but surely she wouldn't be alive if it was - what can it be? I've brought her in the house now. Please help me and tell me what to do.