Spangle Violet Cobalt (Visual Violet)
Normal Wing Feather
Spangle Wing Feather
Note: A good contrast in markings is essential.
The body colour of a double factor Spangle in the green series should be light, medium, dark or grey yellow throughout dependent upon the number of dark factors or grey factor present in the genetical make-up, free from any odd green feathers or green suffusion.
The body colour of a double factor Spangle in the blue series should be pure white.
A slight collar of colour round the neck is acceptable.
Information from PHT Budgerigars