Curled Toes in a Baby Chick?

This can happen for several reasons but sometimes can be corrected.

In a day old chick it is often Genetic, in older chicks it may be a vitamin deficiency and the chick can be treated with a Tonic with extra riboflavin in a water soluble solution.

Remedial treatment can be attempted by using a small splint and taping the foot to the board. Do this only for a few days and change it often.