Like because his voice sonority

Border Canary

These fans keep canaries because of sonority and various types of sound. They just look for the types of canaries that have a sound advantage. They usually choose a canary with criteria : have a continuous sound, loud, and have a lot of sound variety. Canary can even imitate the sound of other birds sing. This example canary who has a good singing voice
: Waterslager, Yorkshire, Border, Gloster, and Frill.

This group is usually the most demanding in Asian countries, this is because in Asia there is rarely a canary contest judged by body shape.

Canary fans, apparently not satisfied with the existing types of canaries. They kept trying to get a chirping canary which has a superior. Therefore, many fans who tried to cross mating types of canaries that have a good lineage or a beautiful voice. And this intercross method, much work for those who already experienced.