Ok I'm still new raising chickens so my 2 young girls have been acting weird like that the last few days and none of the others have been.Well my hens don't make broody noises or hiss as me typically so when they sound like velociraptors it's usually a good sign that they're thinking about it. She has also been flattening out like a pancake in the nestbox when she lays her daily egg. The only thing I haven't heard from her yet is the tell tale ticking time bomb cluck that broodies always do.