A new mutation...???
The green colour in parrots is due to the combination of
two factors: the light distorsion giving the blue colour and
the yellow family pigments (psittcacin)
In some colour mutation the yellow psittacin can be totally
or partially missing.
What about our Bourke's parrot?
The normal wildtype doesn't have real green feather
but it has psittacin pigment.
This year a young Lutino Bourke catched my
eye as it looked really near white besides the other
Lutino chicks in the nest. It fledged near white with a very pale
pink wash on chest and a pale yellow tinge on the wings. You
can see the difference with an usual Lutino sister on the photo.
That colour surely already appeared in
other aviaries beeing unidentified as it can look just as a "pale"
Please contact me if you have such Bourkes in your aviaries,
so we could try to better understand that mutation.
Two young Lutino Bourkes
A CreamIno Scarlet chested Parrot cock
and an Albino Scarlet chested Parrot hen.