The wattles and comb do look red, but I think by 7 weeks all of ours were getting red & we have 8 BA pullets. The tail looks like the tail of the pullets, but you could still have a roo. I honestly have no idea.
If it's aggressive and you do not like putting it in with the others, maybe you should get rid of it whether it's male or female.
If it's aggressive and you do not like putting it in with the others, maybe you should get rid of it whether it's male or female.