We have 2 chicks that hatched 2 days apart. They’re about 2 weeks old. We have a blue Orpington male & the bigger chick hatched from a Blue Ameraucana and the second small chick was from a Rhode Island Red. Both babies came out black with yellow bellies, whitish edge on their wings & white dots on their faces same spots. The RID is literally half the size of the other although they’re only 2 days apart. How do I tell what they are. I’m trying to figure out the best way to check I tried the whole vent thing… not happening