How does this happen?
|Image © Alicia Guzmán Moya|
Do they survive?
No, almost never. The life-threatening circumstances and dangers of the wild can't make a new mutation viable, given that budgies with different appearances caused by mutations stand out and completely lose the protection of "blending in" with the rest of the flock.
They are singled out and killed by predators, as it is easier to keep them in sight.
No hope for blue budgies
Some budgies do stand a chance, though. It is not unusual to find opalines, cinnamon- and greywinged budgies in the wild. You will sometimes even find grey green budgies, as they don't seem to stand out like a blue or a pied budgie would. A flock of thousands of green birds with a blue bird in the middle easily catches the eye of predators, and the hawks head straight for them. On top of that, coloured budgies are often killed by other budgies because of the danger they pose to the rest of the flock.
|Image © text.nu|