One thing I have learned when hearing leaves rustle is to listen for the sound of a breaking stick. Once you hear that, something heavy is walking, and it usually is a deer. (or another hunter) Squirrels, chipmunks, mice etc never break twigs when they go scampering around.

Of course, deer sometimes don't break any either...

I always like to see squirrels around because it tells me that the animals are active, and there is food in the area the deer are after. (unless the nuts are pignuts)

-c_str()