Noises in the Attic: How to Tell What Animal It Is
You can usually identify an attic animal by when and how it moves: squirrels are active at dawn and dusk and sound like fast scampering; raccoons are heavy and active at night; mice make light scratching sounds; and bats are nearly silent but leave droppings below their entry point.
If you hear movement overhead, the animal is usually identifiable from two clues: when it is active and what the sound is like.
Identifying the animal by sound and timing
- Squirrels: Fast scampering and rolling sounds (like a nut being moved), most active at dawn and dusk.
- Raccoons: Heavy, slow movement and vocalizations, active at night; often the loudest attic intruder.
- Mice and rats: Light scratching and gnawing, mostly at night; you may also find droppings and chewed material.
- Bats: Almost silent, but they leave droppings (guano) below their entry point and may be seen leaving at dusk.
Why identification matters
Each animal needs a different approach, and some, like bats, are legally protected and can only be excluded humanely at certain times of year. The lasting fix is always the same in principle: remove the animals humanely, then seal every entry point so they cannot return, and repair the damage.
Hearing something in your attic in NY, NJ, CT, or PA? Learn about humane wildlife removal or book a wildlife inspection.