There may be the following reasons why a baby may walk with a pigeon-toed head:
1. Physiological reasons: Some babies are born with a more introverted skeletal structure, which makes them prone to pigeon-toed walking.
2. Insufficient muscle strength: If the baby's leg muscle strength is insufficient, it will also lead to pigeon-toed posture when walking.
3. Foot problems: If the baby has problems with his feet, such as flat feet, thumb valgus, etc., it will also affect the walking posture.
4. Habit problem: Some babies develop a pigeon-toed habit when they are toddlers, which is difficult to change in the long run.
5. Malnutrition: Lack of calcium, vitamin D and other nutrients can also affect the baby's bone development, leading to incorrect walking posture.