I am a newbie with six adorable Golden Penciled Hamburg chicks... approximately 7 weeks old. We were hoping for egg layers, but 4 of the chicks have bright pink combs top and bottom, while the other two have small yellow ones. If it turns out that we have 4 roos, can I expect the two pullets to brood their eggs so we can end up with more hens? Do I need to remove 3 of the roosters so there isn't any competition? I'd appreciate any advice you can give!