Two pens

I have two dog pens, one on each side of my hen house, I have small doors cut into the house so the chickens can move from one pen to the other at this time later in the spring I will shut one door so I can isolate the hens and determine which rooster covers which hen.
The rooster stay in one pen and do not move from one to the other. You can here them calling the hens and the ladies go from one pen to the other. These photos were made just minutes apart and you will see some of the same hens in both pens. The ladies are fickle.