It's also possible that the cat is searching for food, shelter, or companionship. Stray or feral cats often need help, especially if they are hungry or seeking social interaction. Providing a small shelter with a bowl of dry food and fresh water can go a long way in helping the cat stabilize its condition.

Mating Calls

If the cat is unspayed or unneutered, the loud and strange meowing may be due to mating instincts. It could be sensing other cats nearby and trying to attract a mate. Addressing this through neutering or spaying can help reduce such behavior in the future.

Discomfort or Distress

The strange meowing could also indicate that the cat is feeling threatened or scared. If there are other animals in the vicinity, the cat might be vocalizing due to anxiety. Provide a safe, secure environment if possible, and keep noise levels low to help the cat feel less stressed.

Health Issues

If the cat seems disoriented or is meowing in a strange manner, it might be experiencing health problems such as pain or illness. Keep an eye on any changes in its behavior or health and consult a veterinarian if necessary.

Curiosity and Exploration

Cats are naturally curious and the strange meowing could simply be a sign of the cat investigating its surroundings. Providing a small shelter and some form of entertainment (such as a cat toy) might satisfy the cat's desire to explore and communicate.

In conclusion, a nighttime cat meowing could be due to several reasons including territorial behavior, seeking attention, mating, discomfort, health issues, and curiosity. It's important to observe the cat's behavior, address any immediate needs, and seek professional help if necessary. By understanding and responding appropriately, you can make a significant difference in the life of a stray or feral cat.