Not sure about a terrier x but apart from a bit of bushing my beagles not really good for much else ?. Won’t mark a hole, even when I’ve watched him bolt and follow the bunny back, he’ll sniff down the hole for about 5 seconds before buggering off onto something else. Oh and loud as fcuk too, when he sounds off everything within a 2 mile radius knows we are coming. I won’t be rushing out to get another when he croaks it. The wife and kids love the little bugger tho??