I hatched 2 black orpingtons (American bloodlines if it matters) that are now 6 weeks 2 days old. I thought I had one of each gender, but I'm now unsure. Any predictions? Here are the same chicks at 3.5 weeks. Number 2 has always had the larger comb but it's not as pink & large as my Lav orp boy. Thanks in advance for your help & opinions.