Alabama’s rodent guidance describes the house mouse as a small rodent, usually weighing less than an ounce, with small feet and a small head. It is not simply a smaller version of the same inspection problem as a rat; the size of the openings and the way signs appear inside deserve their own assessment.
House mice can use quarter-inch openings, climb, and build nests from shredded household materials. That combination makes small exterior gaps and sheltered indoor spaces relevant even when the home has no obvious large opening or damaged section of roof.
The same guidance says house mice are primarily nocturnal, but a daytime sighting does not necessarily indicate a large population. Neither the time of a sighting nor one set of droppings gives a reliable head count on its own.
For your inspection, focus on the evidence you can describe: where it appeared, what material was affected, and whether it has changed. Ask the technician to explain how those observations relate to the exterior entry points and the areas that need cleanup.