Hello!! We have 8 Australorps and 2 of them are looking suspiciously like roos. All of the girls have their feathers on the head, but Willow and Lilac still have tufts of fluff on their head. Their tails are quite pointy compared to the girls. Their combs are not that large but a little bigger than the others. Is there a positive way to tell or should we wait till their saddle feathers come in? Thank you!