Harz Roller
Harz Roller (German: Harzer Roller [ˈhaʁtsɐ ˈʁɔlɐ] ) is the name of a breed of domestic canary bred in the Upper Harz mountains of Germany. The birds were bred in the Upper Harz between Lautenthal and Sankt Andreasberg in the middle of the 19th century and achieved European-wide fame.