Shaky head

[mygirlsandi]

Good evening. I am hoping to get some advice. I lost a chicken yesterday and was not 100% sure why. I received great input from the form. My concern is that all of a sudden, all of my flock is shaking their little head. I do not see mites or flies. Can you please let me know what you think this might be? As I mentioned before, here in NC, in the area I live, I have no vets that would see my birds.
Thank you kindly

 

[CrazyChicken360]

They seem to be moving normally to me, I think they just move that way naturally.

 

[mygirlsandi]

They seem to be moving normally to me, I think they just move that way naturally.

Thank you. It's just they never sis that before. I worry top much..