Shepherd’s pipe
English translation of German Schäferpfeife; According to McCandless, who fails to reveal his source, a synonym of German Dudelsack and Northumbrian smallpipe [sic]; NB: Not encountered in reliable sources.
McCandless, Brian: Bagpipe names – A very long list. In: Jl. North American Assoc. of Lowland and Border Pipers 6 (Elkton (MD), 1993), p.51.