yups,, they will mate too much, fight,and just be abusive to your hens with that many roo's and only 2 hens,, i would put 2 roo's together in another pen, and have the hens with only 1 roo,, but even 2 hens to 1 roo, you may find that ya hens start going bald on their back from him breeding just them 2 all the time, if that happens i would seperate him from them till you get more,, but after you split up the roo's, if you try to bring them back together, there WILL be fighting between them, cause they have to go through the "who's the alpha" again, but it shouldnt ( not 100%) be to rough,, but you will have to watch and see.