Waggy's huffing a mouse at the moment. Her eyesight and hearing aren't good enough for her to notice it when it scurries from one hiding place to another unless it passes right under her nose, so she relies on her sense of smell to find where it's hiding and then sticks her nose into whatever crack or crevice she can find to get it as close to the mouse as possible and deeply inhales the mouse-scent over and over again. She only very rarely attempts to dig or move obstacles out of the way to get at a mouse, and the mice aren't in much danger with her hunting them. I left out some nuts and oat flakes for the mouse to eat once Waggy stops bothering it.