Oh, BTW, my hens KNOW their rooster. The roos I have with my hens are getting some age on them, so sometimes I swap them out for one of my younger guys in order to get for-sure fertilized eggs. Even if the younger one is the son of and a dead-ringer for the older guy, the hens know the difference. They give him heck for several days before they adjust to him, if they ever do. They WELCOME their guy back when I put the old guys back in with them.
By the same token, my roos have their favorite hens. I have two pens side-by-side. The hens come and go under the common fence. The roos respect each other's territory and don't go under the fence. When it comes to breeding, some hens always go with the one roo and some hens always go with the other. They go to bed at night divided up the same way. It makes me feel like I'm forcing the hens to be unfaithful to their husband when I put the younger guys in with them.
I, too, have seen hens "mourn" the loss of their roo.
I have pics of one of my roos with his wing spread out over a couple of his hens while on the roost, if anyone wants to see them. I think we humans underestimate sometimes relationships among animals..... even chickens.