Identifying Holes

Where are the holes located?

Structural Holes	Ground Holes

 

Structural Hole Identification

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:
Mouse, Bat	Rat, Chipmunk, Flying Squirrel	Tree Squirrel, skunk	Raccoon