Last year I was taking nose work classes - or as I call them, nose FUN classes - with Emily Stoddard of Canine Sports. Then my human stopped taking me. I don't know why. But now I'm taking them again!
My human wasn't sure I would remember how to find birch. Do I get cheese if I find it? Then of course I remember!! Here's a video of me doing my nose work with the birch scent.