Through to expert in breeding canaries and goldfinches - The Roller Canary, also called the German Roller Canary or the Hartz Mountain Roller Canary, has been highly prized for hundreds of years
Harz Roller - Wikipedia
German Roller Canaries for Sale Sydney @ Strathfield Pet Shop
Single Premium – Yellow Canary Male or Female - Fly Babies Aviary
Harz Roller Canary - Singing Price For Sale - BirdBaron
What are the Best Singing Canaries? | Canary | Finches and Canaries | Guide
The Sound of the Roller Canary - song and lyrics by Sound and Birds Song | Spotify