I have my first flock. I have 12 RIRs, and two white leghorns that I bought at TSC on March 6. I am almost 100% sure one leghorn is a roo. But I was wonder about a behavior I observed several times... one chicken will run flapping it's wings and get right up in another's face. They both will stand tall and spike out the feathers from the top of their heads down their neck. Is this strictly male behavior or do hens do it too?