In the mid 1930s, a group wanted a bird that had a louder voice than the German Roller. They decided that the appearance of the Scots Border canary was the best for their purpose. The Border, however, has a very loud, choppy song. The American Singer is about 2/3 Roller and 1/3 Border. Its song is sweet, not too loud, not too soft, pleasing to the ear, with plenty of variety. Only the male American Singer will sing so this makes sexing easy.
To hear a sample of the American Singer's song click here.