The most common nocturnal creatures are mice rats bats and raccoons.
Critter in my wall.
It is unlikely a mouse would be in an interior wall on the second floor unless it was near the chimney bingo.
Squirrels are a prime example of a diurnal creature.
Rats and mice are notorious for annoying scratchy noises in the ceiling and walls as they scurry about looking for food.
I realized the chimney ran right through that area.
The most common complaints associated with rats and mice are the scratching noises heard in walls or ceilings.
This food search mostly takes place at night when the house is quiet.
Keep in mind that the timing of the sounds could help you figure out what sort of critters you re dealing with or if it s just a tree limb rubbing against the house on a windy day or night.
If you can t find the offending animal or don t want to cut into your walls you ll have to do what you can to keep the odor contained and cover it up as much as possible.
Regarding my case matusiak explained it would be very rare for a mouse to be inside an interior wall but as he questioned me further we hit on a possibility.
A rodent in the walls can be just as dangerous as it is annoying.
The best way to eliminate the smell of a dead animal inside your wall is to find the animal and remove it.
Mice rats and squirrels have the uncanny ability to find tiny openings and enter your home and then chew their way through walls electrical cords or anything else that might be in their path.
But you won t typically hear a raccoon crawling around in your wall voids.
They may also be harvesting the seeds nuts and acorns that they had stored previously in the walls.
Mice and rats may be relatively easy to remove on your own by using heavy gloves and a long grasping device such as a snare pole to pull them out from the top of the wall.
Hearing scratching or noises in the walls is one of the many signs of having a pest problem.
Mice squirrels and other rodents can sneak into your home through surprisingly small holes then make themselves comfortable in dark hidden spaces like inside of the wall cavity.