I believe it's the opposite - a lot of roos get classified as hens.I see a few possible roos but none I feel confident in calling. I personally think a lot of hens get mistaken for roos at this age. The fact that a lot of these are crosses complicates things. Your favorite appears to have a straight comb but not a worrysome one IMO. If your birds indeed have wyandotte heritage they may also grow wattles and comb faster than "normal" or slow feather. I think with all the dynamics you have going on here, I wouldn't even try to guess at genders until 12 weeks. Even then may be a bit premature for the crossed birds. What ever heritage they are, they are going to be lovely! Would love to see them all grown up.![]()
In my own, I could spot 4/10 roos and one was iffy. Turns out that it is indeed a boy, so I have exactly 50/50.