The reasons why a four-month-old orange cat keeps meowing:

1. When a cat comes to a new environment, it will feel scared and not adapt to it. Meowing, it will take a few days to get used to it.
2. When a cat feels bored and wants its owner to play with it, it will keep meowing.
3. When a cat is hungry, it will keep barking. The owner should feed it in time and feed it regularly and quantitatively.
4. When a cat is sick and feels pain, it will keep barking. You should observe the cat's status in time. If it is sick, take it to the pet hospital for examination and treatment in time.
5. When the temperature drops, the cat will feel very cold and will bark at its owner. The owner needs to take measures to keep it warm.