Cute dog! I rescued a Beagle from one of the local animal shelters about 2 years ago. They sniff everything.....it's in their blood. Google Beagles on a rabbit hunt, or somethig like that, and there is an audio clip you can play and your Beagle will go into hunting mode. They make a differnt sorta sound, not a barking sound, but a weird sound when they are in the "hunt'. Kinda like a yelp/bark. Trippy!

I live next to a golf course and get lots of squirrls in the back yard, and every morning when she goes outside, she sniffs out the path that the squirrls took during the night before, and then she starts making that yelping sound. Every morning for like 5 minutes, then shes done.