My terrier mix, Sandy, loves to follow her nose, chasing after little critters into the woods, typical behavior. Today was hilarious; she chased a chipmunk or something into a little burrow. Started digging at it, tearing out roots with her teeth to dig deeper, deep enough to fit her entire head in the hole. She then started “snort-huffing and puffing” into the hole, over and over. I was laughing so hard! Was she just trying to “smoke” the critter out? What is the huffing for?