6 Week old banty roos fighting

[BirdBrained]

I saw something this morning that answered alot of questions,one of the 6 week old banty roos is crowing,cute and funny at the samer time,this of course upsets his brothers so they are fighting to be KING ROO,I removed the meanest one,funny thing is hes not the one crowing,I've heard of roosters crowing at an early age but it surprised me to see mine do it.He's kept close to his daddy who crows all the time,guess he's telling daddy that he's growing up.