Understanding Yellow-Faced Blue Budgerigar Mutations: Australian vs. European Variants
This guide explores two distinct Yellow-Faced Blue budgerigar mutations: the Australian and the European variants. Key breeding methods for each type are outlined, including the inheritance patterns of single and double factor mutations. The body colors and specific traits of each type are discussed, including color depth variations. The text emphasizes the exhibition classifications and proper placement of Yellow-Faced amongst other colors and mutations, highlighting their genetic significance and the importance of correct representation in competitions.
Understanding Yellow-Faced Blue Budgerigar Mutations: Australian vs. European Variants
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Presentation Transcript
Yellow Faced Blue • Two Yellow Faced ‘Colour Mutations’ • One we shall call ‘Australian’ • The other we shall call ‘European’
‘Australian’ Single Factor • Produced by breeding: • Double Factor YLF to Normal – 100% • Single Factor YLF to Single Factor YLF – 50% • Single Factor YLF to Double Factor YLF – 50% • Single Factor YLF to Normal - 50% • Body Colour • Greenish to bluish – if there are such words • Not for exhibition • Useful for breeding only
‘Australian’ Double Factor • Produced by breeding: • Double Factor YLF to Single Factor YLF – 50% • Single Factor YLF to Single Factor YLF – 25% • Body Colour • Blue – depth depends if Sky, Cobalt, Mauve or Violet. • Face and Mask • Buttercup Yellow or Golden • For exhibition
‘European’ Single Factor • Produced by breeding: • Double Factor YLF to Normal – 100% • Single Factor YLF to Single Factor YLF – 50% • Single Factor YLF to Double Factor YLF– 50% • Single Factor YLF to Normal - 50% • Body Colour • Blue – depth depends if Sky, Cobalt, Mauve or Violet • Face and Mask • Cream • For exhibition
‘European’ Double Factor • Produced by breeding: • Double Factor YLF to Single Factor YLF – 50% • Single Factor YLF to Single Factor YLF – 25% • Body Colour • Blue – depth depends on Sky, Cobalt, Mauve or Violet • Face and Mask • White • For exhibition as a Normal
Basis for exhibiting • Colour mutations • (Colour modifying mutants) • Variety mutations
Colour mutations are….. • Blue (normal) • ‘European’ Yellow Faced Blue (normal) • Aust. Yellow Face Blue (normal) • All are allelomorphs mutated from the normal wildtypegreen • Represent the 4 budgie colours
Colour modifier mutations are… • Grey • Violet • Dark factor
Variety mutations are…… • Blackeyedself – Dilute included • Redeyedself – Albino or Lutino • Clearwing • Greywing • Cinnamon • Opaline • Fallow • Etc etc
Where to exhibit? Yellow Faced near the top of the exhibition ‘tree’ with the other two Colour mutations • Green • Blue • Yellowface • Blackeyed self • Redeyed self • Clearwing • Greywing • etc etc Currently Yellow Faced are misplaced among the Variety mutations in most Countries
What this means……. • Puts Yellow Face into its rightful place based on a solid genetic reason • Green, Blue and Yellow Face classes would contain only normals • Every Variety mutation can then be shown in all three colours rather than just the two colours • Green, Blue andYellow Faced Blue • Puts an additional Colour mutation into each class below Yellow Face, creating much more interest in a declining hobby
An example or two……. • An Albino is variety mutation and Yellow Face is a colour mutation thus should we not be exhibiting the variety first • A Fallow (Blue series) is a variety mutation and as explained above, Yellow Face is a colour mutation thus I would conclude that we should be exhibiting the variety (Fallow) and if Yellow Face then so be it.
Conclusion……. • ‘Australian’ Yellow Faced Blue can only be shown in the Double Factor form • ‘European’ Yellow Faced Blue can only be shown as a Yellow Face in the Single Factor form • ‘European’ Yellow Faced Blue in Double Factor form visually is ‘Normal’ and can be shown as a Normal
