We got these chicks from friends who have a very mixed flock (several different rooster and hen breeds). They are about three weeks old in the first pics. At that point I had no clue what they might be. I include these pics because I know what they look like very young can help identify. Here they are (below) at 8 weeks. After some research, I am pretty sure I have a Black Sex Link pullet. Not sure what the blonde ones are, but they look like pullets. And the two that look like Red Sex Links should be pullets, but their large red combs and wattles confuse me. And the last one (red with the back tail feathers) looks like a Rhode Island Red, but not sure. If it is a RIR (or Production Red), then would it be a roo with that large red comb and wattle? I appreciate your help. They are now 10 weeks old. I think I'll try to get some new pictures today. We're really hopping we have mostly girls.