So I went out to light the eggs in the nests to see where they are at developmentally. While I was in the coop, our barnvelder hen, who was roosting on the ground, started flopping around like someone had cut her head off. I don't know if this was a seizure, or if she's just "special" or what, but it was kinda wierd. Any ideas? I looked up seizures, but they all talk about chickens going stiff with their head thrown way back, not floppy. Any thoughts? This is the first time I've seen her do this.