Beasts Begone! Appendix A: Animal Identification
Stocky (approximately 1 lb.), grayish brown, with a long, rather hairless tail. Largely (but not exclusively) nocturnal. Frequent invader of basements, wall voids, attics, crawl spaces, and human living spaces of buildings.
Physical cover near the foundation can facilitate access; check firewood stacks, debris piles, and crawl spaces under decks or additions.
Holes larger than 1/2 inch, usually in vicinity of foundation. Also accesses crawl spaces and wall voids via attached garages.
Squeaking. Scampering; gnawing.
Gnaw Marks and Food Remains
Gnaw marks on wood, plastic, etc.
Not as musky as house mouse.
Back and sides of animal: each hair partitioned into black, gray, black segments; 1/2 to 3/4 inch long.
Belly: white to gray, approximately 1/8 inch long.
Dark, elongated; 1/2 to 3/4 inch long.
Body rub marks around entry sites and along runways. Runways in attic insulation. Burrows in ground near foundation and dirt floors of basements.
Nests (may be lined with shredded fibrous material). Urine stains (under UV light)