They are both SUPPOSE to be barter cross and the yellow one (ivy) is the one i think is a rooster just because she is much bigger then the tri colour one (tilly). If any one could help me know that would be wonderful thankyou
They are still too young to tell... but the blue pied one I think is pullet (girl) and the wite one that can't really tell.. but for me I think a cockerel (boy)
you really need clear, closeup pictures of each chick alone, you want it from the front showing the comb. When they are older a profile shot of the body is also important.