Gertrude is a Welsummer, whose tail has never come up. She is one of the bottom of the pecking order. At 25 wks., she acts normally, eats and poops just fine. Many of her tail feathers were still not fully opened, and in their sheaths. I scratched off most of them. Has anyone seen anything like this? Her comb also seems under developed for her age, comparing her to the other girls. Should I be concerned yet?