WoW.....didn't know there were all kinds of budgie mutations. This was very helpful, thanks for posting. I have to look up slates info when I get home from work Thanks so much! My slate is named Slater, pretty original huh?! lol
Here's my photoes of violet forms of budgies, in both single factor and double factor.
I had only one 1-month-old female juvenile double factor violet-cobalt normal budgie, while her parents are both single factor violet-cobalt budgies.
I had one unrelated single factor violet-cobalt normal male budgie in juvenile plumage.
The female juvenile had darker greyer violet colour on rump & body, a true purple colour, while the single factor violet-cobalt male juvenile had bluish-purple colour, slightly paler than female juvenile.
Parents, both single factor violet-cobalt, with father is normal while mother is opaline.
Father a single factor violet-cobalt normal, in adult plumage.
1-month-old budgies in juvenile plumages, with a female double factor violet-cobalt normal perching on left of this photo. Right bird is her brother, a violet-mauve normal.
This is a female 1-month-old double factor violet-cobalt normal in juvenile plumage.
Note the true purple rump.
Double factor violet-cobalt.
Single factor violet-cobalt.
Rump of father Single factor violet-cobalt.
Rump of male juvenile Single factor violet-cobalt.
Rump of female juvenile Double factor violet-cobalt.
Left: Single factor violet-cobalt. Right: Double factor violet-cobalt.
Double factor violet-cobalt had more true purple rump.
To breed double factor violet-cobalt budgies, you would have a pair of single factor violet-cobalt budgies to breed.
I'm absolutely delighted because by comparison
to Lindsey's mutation site, the site offered earlier
in this thread AND the wonderful photos provided
by Clinton, my new bird is without doubt a violet!
Proud Cecily and I shall now retire to do the Happy