So this year is my first year having backyard chickies. So im learning as i go. I have a barred rock that is around 5 1/2 months old, i always read and hear that she should start laying soon. This morning when i went to pet her and pick her up she squated opening her wings and started flicking her tail up and down. What does that mean? My other chickie doesnt do that, they are the same age.