well yea, but this is a roo, roos are not meant to be smaller than hen lol, I dunno maybe several months I dunno if he could grow larger, but he's tiny :)
I have a small roo, he's now learning how to crow and already got mature feathers, I called him oddy, I dunno what breed is this.. He's too small to be a bantam, I got him by mating a bantam and domestic chicken, but I dunno who's his parents, because my chicken do something like a swinger...