Is it just Roosters that chest butt each other while puffing their feathers out , or do hens sometim

[Laurie's Silkies]

I'm still trying to sex my Easter Eggers!! One of them started Crowing a couple days ago.so that helps some. but do the Roosters chest butt each other while puffing out their feathers and standing taller? If they do that would be so helpful. Someone please comment as these birds have been extremely hard to sex!!

 

[Percheron chick]

Pullets do it too. I have some 11 weeks old girls that I catch a few times a day doing that.