My hatchery chick is almost 10 weeks old. This deformity or whatever it is has just become noticeable in the last week or two. At first, I thought it was dirt stuck to her. Today I tried to wipe it off, but it is hard and I was afraid to hurt her. Is it a scab? Or a growth? Is there something I should do or is it ok to wait and see what happens? My poor baby.