To learn what's living near your home, build a simple tracking box?essentially a very shallow sandbox. Place it in an area where animals are likely to show up (beneath a bird feeder, for instance). Then decipher the prints left behind with a field guide such as Mark Elbroch's Mammal Tracks & Sign: A Guide to North American Species. An even simpler method is to spread a light layer of baking soda on the ground, your porch, or the sidewalk. The beasts of the suburban wild may try to go unnoticed, but they always leave their mark.
Building a Tracking Box
Nail together two 2 x 4 and two 2 x 8 boards to form a rectangular box. Place the box in a level area where you suspect animals trek. Line the box with plastic, and fill with sand. Smooth the surface. Move the box after a few days to protect your grass.
Common Animal Tracks
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