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BEASTS BEGONE! Appendix A: Animal Identification

Flying Squirrel flying squirrel

Small (less than 7 oz.) tree squirrel. Olive-brown above, white below. Distinctive gliding skin flap stretching from front leg to rear leg. Flattened tail. Nocturnal. Invader of attics, wall voids, and crawl spaces. Frequency varies regionally. Also can become trapped in chimneys.

Access Routes

Tall trees within gliding distance of roof.

Entry Sites

Usually high on the building; holes in fascia boards of the eaves, dormer tie-ins, architectural returns, and similar sites along the roof line; vents (roof, soffit, gable, fan); uncovered chimneys; deteriorated roofs, eaves, and walls. Holes are often smaller than those of the gray squirrel.


High pitched twitters. "Landing" noises at night. Scampering; gnawing.

Gnaw Marks and Food Remains

Gnaw marks on wood, plastic, nutshells, etc. Caches some food (such as seeds and nuts) in nests and tree crotches.

Fecal Droppings: flying squirrel droppings

Variable, but tend to be elongated and 1/4 to 1/2 inch long. Similar to red squirrel except smaller. Brownish stains often associated with feces and urine accumulations.


Except tail, 1/4 to 1/2 inch long. Back and sides of animal: black-tipped with light brown. Belly: white or black with white tip; may have reddish cast. Tail: 1/2 to 3/4 inch long. Back of tail: light brown. Bottom of tail: light reddish.

Other Signs

Body rub marks around entry holes. Runways in attic insulation.

Tracks: Landing marks.

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