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Rats vs. Mice: How to Tell Who's Living in Your Walls
Something is in the walls. Is it a tiny mouse or a “how is it that big” rat? The answer changes everything about how you deal with it.
| House mouse | Norway rat | |
|---|---|---|
| Body size | About 3 in. (plus tail) | About 7–10 in. (plus tail) |
| Ears | Large for its head | Small |
| Snout | Pointy | Blunt |
| Tail | Thin | Thick, shorter than body |
| Droppings | Tiny, rice-sized, pointed ends | Capsule-shaped, ½–¾ inch |
| Sounds | Light scratching in walls/ceilings | Heavier scratching, gnawing, thumping |
| Where | Kitchens, walls, attics | Basements, garages, ground floor, burrows outside |
| Gap needed | About ¼ in. (dime) | About ½ in. (quarter) |
| Trap behavior | Curious — goes right to traps | Cautious — avoids new things at first |
Why it matters
Mouse traps won’t hold a rat, and rat traps need different placement and patience. Rats also need heavier sealing — hardware cloth and concrete instead of just mesh.
Mice: mouse fun facts · keep mice out | Rats: rat fun facts · get rid of rats
Watch: Silver Bullet mice & rat work
What to look for
More about rats
- 18 Fun Facts About Rats
- Does Rain Bring Out Rats??
- What Keeps Rats Away??
- All pest questions, answered
Fun facts about other pests
- 21 Fun Facts About Ants
- 20 Fun Facts About Squirrels
- 20 Fun Facts About Bees and Wasps
- 20 Fun Facts About Mice
- 18 Fun Facts About Cockroaches
- Waterbug vs. Cockroach: Fun Facts
Common questions
How can I tell if I have rats or mice?
Look at droppings: mouse droppings are rice-sized; rat droppings are capsule-shaped and ½–¾ inch long. Rats are also much bigger.
Is it a baby rat or a mouse?
Young rats have small ears, thick tails and big feet for their size; mice have large ears and thin tails.
Do rats and mice live together?
Usually not in the same spot — mice tend to avoid rats.
Are rats harder to get rid of than mice?
Often, because rats are cautious of traps and need heavier-duty sealing.
Schedule today
Call 973-510-2585, text us or request a free quote online. Silver Bullet Pest Control is licensed and insured in New Jersey.