My 2 older dogs, both rescues, are of ... uncertain parentage, you could say. People who know more than I guessed that Miko is probably Kelpie mixed with who knows. He's retired from agility now but keeps busy with nose work, and would love it if I let him take up tracking again.
Moxie, who is some combo of Aussie and BC, still competes in agility (fingers crossed he can stay uninjured for awhile) and does surprisingly well at nose work -- considering that as a tracker he makes a good carburator smile emoticon He would love to herd sheep but has to make do with the cat.
I'm attaching a very poor quality (2007 cell phone) video of Miko tracking in one of Debi Best's classes. Also attaching an "Essence of Mox" photo. All that's missing is the bark!