my brother has a green budgie and a lot of the down feathers are very pale... So you could be mistaking some of theirs for the white ones?
I have to agree that you could be thinking they are mostly from the white birds when in fact they are not.
Wow --- great point, ladies! I never knew that, nor would it have occurred to me.
CMB-love your avi pic-is that new?
Ditto -- what a lovely pic.