I'm having issues i have a week old partridge cochin and she keeps getting pasty butt. I think the main issue is directly under her vent she has really stiff feathers...(unsure why). Its almost like the feathers are in the wrong spot. Has any one ever had this issue and if so what do i do. She's a fiesty one i didnt think she was going to make it when i first hot her in the mail because she is so much smaller than the others, i guess she is the runt!