The Beagle and the Tale of the Invisible Dirt

I love my beagle.  She is the cutest thing.  Her body is mostly black with a little brown and white thrown in on her sides and legs.  The very tippy tip of her tail is white and her head is mostly brown with a white stripe between her eyes.  Since it's been said that a picture is worth a thousand words, here:

See, she's adorable.  She was young here, just a puppy so she's a little whiter around the muzzle now but you get the drift.

Ever since the stork dropped her off she has this weird thing she does sometimes.  When she is given a treat she will walk around and look for a spot to hide it.  But, the entire time she is "hiding" it she whines so it's not like she's being stealthy and no one knows where she is.  She emits her own little tracking signal.