At this point I would say wait and see. That comb is very narrow, only one row, whereas ee roo's usually have a wide, three row comb. There's also not much color in the comb yet either. And the coloring looks girly to me too. My ee hens have always made me suspicious because they are usually the biggest in the group with the biggest legs etc. I haven't had one turn out to be a roo yet. But they sure can be deceiving. I would just give that one a bit more time. The attitude could just be boss hen material!