Fluff
QuestionIs it OK if my baby chicken is losing its fluff?
AnswerIt’s normal for the downy fluff of a chick to be lost as it’s replaced with hard feathers and new down. But, if you are seeing bare patches, this isn’t normal.
The growing in of secondary feathers should seem gradual and the loss of down not really noticeable.
You don’t say if this chick is with others or any adult chickens. Chances are, if with other chicks or chickens, that it is getting picked on.
Make sure there is plenty of room in the brooder and that all chicks have easy and equal access to food, water and heat, as they want, at all times.
If any chicks feel there is a lack in any of these things they will be more inclined to pick on one to increase their own chances of survival.
You might also check your feed quality. Make sure it’s not spoiled and change any litter and dirtied food and water often.
I would double check that the brooder temp is correct and keeping the chicks as comfy as possible.