WattaBird! Featured Breeder: Jun Aviary Cabuyao, Laguna, Philippines The featured African LoveBirds Breeder for this week is Jun Aviary from Cabuyao, Laguna, Philippines. Jun Aviary specializes in breeding Opaline LoveBirds "Opaline is a mutation which was discovered in 1997. The opaline mutation first appeared in peach-face lovebirds bred by Becky Anderson of the Royal Rose Aviary in Upper Michigan in January, 1997. The opaline mutation changes where the colors are located on the birds in a predictable but new pattern. The opaline mutation is sex linked. As a result, hens with opaline genes will always show the pattern (they are termed "visuals"). Males require two copies of the gene to be visuals, so there are far fewer of them. We have noticed subtle differences in males with only one copy of the gene ("splits") that sometimes allow a breeder to tell the difference between a split male and one that has no opaline gene at all." - theropod aviary Here