Yellow Faced Blue

1. Yellow Faced Blue • Two Yellow Faced ‘Colour Mutations’ • One we shall call ‘Australian’ • The other we shall call ‘European’

2. ‘Australian’ Single Factor

3. ‘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% • Adult Body Colour • Sea green (on Sky) to dark bluish green (on Cobalt) and grey greenish (on Grey) • Not for exhibition since not pure blue or grey on body • Derived from outcrosses, so useful for breeding

4. ‘Australian’ Double Factor

5. ‘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 on Sky, Cobalt, Mauve or Violet; or Grey • Face and Mask • Buttercup Yellow or Golden • For exhibition and breeding

6. ‘European’ Single Factor

7. ‘European’ Single Factor

8. ‘European’ Single Factor • Produced by breeding: • Double Factor YLF (looks Normal Blue or Grey) 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; or Grey • Face and Mask • Cream • For exhibition and breeding

9. ‘European’ Double Factor

10. ‘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; or Grey • Face and Mask • White (appearance indistinguishable from Normal) • For exhibition as a Normal

11. Basis for exhibiting • Colour mutations • (Colour modifying mutants) • Variety mutations

12. 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

13. Colour modifier mutations are… • Grey • Violet • Dark factor

14. Variety mutations are…… • Blackeyed self – Dilute included • Redeyed self – Albino or Lutino • Clearwing • Greywing • Cinnamon • Opaline • Fallow • Etc etc

15. Where to exhibit? Yellow Faced near the top of the exhibition ‘tree’ with the other two Colour mutations • Green • Blue • Yellow Faced • Blackeyed self • Redeyed self • Clearwing • Greywing • etc etc Currently Yellow Faced are misplaced among the Variety mutations in most Countries

16. What this means……. • Puts Yellow Faced into its rightful place based on a solid genetic reason • Green, Blue and Yellow Faced classes would contain only normals • Every Variety mutation can then be shown in all three colours rather than just the two colours • Green, Blue and Yellow Faced Blue colours • Puts an additional Colour mutation into each class below Yellow Faced, creating much more visual appeal, variety and interest in a declining hobby

17. An example or two……. • An Albino is variety mutation and Yellow Faced 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 Faced is a colour mutation thus I would conclude that we should be exhibiting the variety (Fallow) and if Yellow Faced then so be it.

18. Conclusion……. • ‘Australian’ Yellow Faced Blue should only be shown in the Double Factor form • ‘European’ Yellow Faced Blue only exists as a Yellow Faced in the Single Factor form • ‘European’ Yellow Faced Blue in Double Factor form is visually ‘Normal’ and is shown as a Normal