When I got this guy at about 2 weeks old, I thought he was a barred rock pullet (like the other 2 chicks I got with him). Then he grew up! This picture is at 3.5 months. What type of rooster do you think he is? I thought maybe a black sex link...or maybe just a mutt? He has some muted barring, brownish/red saddle feathers and green & white barred tail feathers.