i have (4) 4 or 5 week old meat chicks, they are in a smaller separate pen, i also have (5) reg 1year old chickens , now these meat chicks are about the same size as the reg chickens, can i put them in the same larger pen as my reg chickens?? is this safe??they have been quarantined, because, i need the smaller pen for my silkies to go into, thanks!! oh, we are not going to eat the meat chicks!! they were given to me.