Hi y'all. This is my first post here. I'm new. I have four babies right now just over a week old. 2 RIR 1 Barred Rock and 1 Black Star. All in good health, happy, fun, sweet things. However my black star seems to be a super slow grower compared to the other three! The three have good feathering of the wings and fluffy tails and starting to all over but the star just isn't there. She barely has wing feathers now! I know she will be the smallest bird out of the four but her lack of feathering almost concerns me. So far Ive not had any worrisome things with the girls so I guess this is my only one. Is it normal for a black star to be a slow grower? She seems perfectly healthy otherwise. Thank you in advance!