These are two different breeds. I personally hatched them from my chickens. I thought they were full siblings. I thought they were both my blue andalusian cross and my black copper meran, but the older the non blurry one I'm starting think its an australorp meran cross. Both chick are 9 weeks old and there is a major size difference (can't tell in the picture but in person they are) But not sure if its a rooster or a hen. I'm thinking a rooster but not 100% sure. Anyone have any thoughts???