Poo-dunit? : a forest floor mystery

"Sniff, sniff! went Mouse. Whiff, whiff! went Mouse. "Who left this poo outside my house? I must undo this mystery. Poo-dunit?" Mouse is dismayed to step outside her house one morning only to discover a giant pile of poo! Who could have done such a dastardly deed? Mouse questions all the animals of the forest, but it's too big to be Squirrel's, too dark to be Coyote's, and too messy to be Deer's. Will Mouse ever track down the culprit-and will sh...