Spangle is dominant.
When a budgie has one Spangle gene (single factor) it appears like the birds below.
Green series / Blue series
Spangle is dominant.
When a budgie has one Spangle gene (single factor) it appears like the birds below.
Green series / Blue series
Mask:
(Depends on color)
Legs:
pink/grey
Eyes:
Dark with iris rings
Cere:
Blue in Mature males
Tail:
(Depends on color)
Cheek patches:
(Depends on Color)
The spangle gene influences the patterning on the budgies wings (when in single factor).
When a bird has two Spangle genes (double factor) the bird no longer produces melanin and appears as either completely white (blue series) or completely yellow (green series). The bird below is a double factor spangle in the blue series.
The wing feathers are normal in color (white in blue series, yellow in green series) and appear to have been outlined with a fine tip black marker.
Male Double Factor Spangle (blue series)
The follow is true for all DOUBLE FACTOR Spangles.
Mask:
Legs:
grey
Eyes:
Drak with iris rings
Cere:
Blue in mature males
Tail:
Cheek patches:
White
Note the dark feet. Feet and eye characteristics become important in distinguishing between:
All of these mutations can appear very similar.
-Double Factor Spangles
-Dark-eyed Clears
-Dilutes (aka "whites" and "yellows")
-Albino/lutino
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