How Can I Tell What Animal Is In My Wall. If i've narrowed down the area, and the animal is not in the attic or under the house and definitely inside the wall cavity, i stick my nose right on the wall and sniff every square inch until i hit the exact spot. Animal hole sizes can provide information as to what animal or wildlife is the source.
The methods employed by professionals vary depending on the type of animal that is stuck in your wall. Fluttering sounds with chirping, indicates a bird. This is a good indication you have a cadaver lodged in your walls.
If there are noises in your attic, it’s probably squirrels or raccoons nesting.
The steel wool will cut the mouths of any rodents that try to chew through it. The first suspect is always a mouse or even a rat, but you would be surprised at the type of animals you can have inside your walls. I have found that experience helps a great deal. If they are good, they can take it from there.