Barking to Start Scent Discrimination

Gotta love Wyatt. The other day, he was barking to get started on scent discrimination. There are probably not too many dogs that do that. He does not do this all the time but it does appear to be one of his favorites. I have been using string cheese too, which is a high value treat for him. I doubt he would do this in a trial setting but to honest, I would not care if I got points off for being overly enthusiastic...