does separating hens and roos make the roos agressive?

[Flock Runner]

i have 2 roosters rite now but i dont have enough hens. my hens began getting bald so i separated them from the roosters. i haven't had any problems with my roos. the only thing is that one of my roosters likes to peck at feet which is only a problem if your in sandels. just lately though, he made a leap at my hand when i tried to shew him away from my feet. he is about a year old and has only been separated from the hens(with my other rooster) for maybe 3 months. does this have anything to do with his behavior, or is it just his age?

 

[sourland]

I think that his behavior is most likely coincidental to the separation rather than being cause and effect. He was destined to become a 'bad boy'.