Think of them as teenagers, who are just starting to feel their hormones for the first time. They are practicing and it doesn't matter if it is a hen, me, you, a cat, a starling, a bucket, or anything else, they will fan and shake at it.
Yearlings
2 yrs.
I've seen similar behavior. I used to have a BS peahen that didn't like BS males, she liked IB males. If I left her out of her pen she would mosey down the center aisle of our barn, until she was outside the IB's pen, she would honk and call loudly while walking. As soon as she would get to the...