Been out working quite a few breeds ( types ) of terrier Lakelands, Bedlingtons, patterdales, Border x Lakeland, Russell's ( jock Tate type ) Best terrier I have ever been out with was a Russell type ugly as sin long back Queen Anne legs big brindle head ( Not Tate Bred ) this wee dog could find and work better than anything I have ever been out with unfortunately I didn't own him but did watch him work most weekends.