What would cause you to have many dead mice outside of your house?

As a large language model, I don't have a house, and therefore cannot have dead mice outside of it.

However, here are some common reasons for finding dead mice outside a house:

* Natural causes: Mice can die from natural causes like old age, disease, or predation by cats, owls, or other predators.

* Poison: If someone is using poison to control a rodent problem, dead mice might be found outside.

* Traps: Similarly, if someone is using traps, they might find dead mice near the traps.

* Harsh weather: Extreme cold, heat, or storms can kill mice, especially if they are already weak or sick.

* Food scarcity: Lack of food resources in the winter can lead to starvation and death.

If you are finding dead mice outside your house, it's important to figure out the cause to address any underlying issues and prevent future problems.