It's nice to have a clever lurcher like that about AT, they seem to be as tuned in to the situation as the terrier working away beneath it. I remember a bull/whippet my mate used to have and it's party trick was to catch a fox from a hole before it bolted, literally crawling down 5 or 6 feet and drawing it from a hole as it was about to bolt, how it knew what hole the fox was going to bolt from I'll never know.