I have two 20 week old Golden Comets and then a flock of chicks (7 Silkies-3 weeks, and EE’s and a few others 2 weeks old). I have the big girls separated form the chicks, would it be safe to get an 8 week old Bantam (Mille Fleur D’uccle) to the younger flock since they are smaller? Or any suggestions?