Internet Center for Wildlife Damage Management
Research-based Wildlife Control Technology and Management Information from Experts Who Care
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Collapse Damage IdentificationDamage Identification
Collapse IndoorsIndoors
Chimney
Black/Brown Scat
White Scat
Hole Size
Collapse OutdoorsOutdoors
Gardens/Grass
Ground Holes
Collapse Trees/Shrubs/BushesTrees/Shrubs/Bushes
Bark Stripping
Deck/Shed/Porch
Crop Damage
Livestock
Vehicles
Unsure/Bad Smell
Using Hole Sizes to ID the Animal Entering a Structure
Hole sizes only tell us only what animals could NOT enter the building. For instance a raccoon sized hole can be used by a smaller animal such as a squirrel.

Size of a pencil (3/8") think: Size of a quarter (1”) think: Size of a baseball (1½”-3”) think: Size of a grapefruit (4"+) think:
pencil quarter baseball grapefruit
Mouse, Bats Rat, Chipmunk, Flying Squirrel Tree Squirrel Raccoon