I've thought this little one was a little roo from almost the get go. He's confusing me a little now, though. His feathers are coming in really light and he has little comb development. His combs looks about the same as his sisters' and way smaller than his brother's. The second photo is him on the left, one of his sisters on the right and his brother below. The last pic is him on the left and his brother on the right. Any thoughts? Is he really a boy? They will be 6 weeks Friday.