Where do squirrels poop?
There are millions of squirrels in my neighborhood. Every time I look out the window I see squirrels eating, fighting, climbing, mating, crossing the street via the power line. But I've never seen one pooping.
And if they just let'er rip wherever they stand, we should find tremendous trails of squirrel turds under trees and power lines, but I haven't seen those either. Presumably squirrel turds would be about the same size as rabbit pellets, which would be amply visible given their immense population.
(See what happens to my brain after listening to a half hour of Qaddafi?)