> There is no scientific proof that a certain grey cockatiel
> mate with any other type of cockatiel in the wild. All
> cockatiel hybrids were created by people.
I believe this statement isn't entirely accurate. Cockatiels are
the only species there are no sub-species of cockatiels.
Colorations within a species naturally exist - however, they are
not found in the wild due to being easily preyed upon. The
white tiger isn't created by man, it is a naturally occuring
coloration which is collected and bred by man for the white
Just as in humans, coloration of eyes, hair or skin is
genetically determined, not created by breeding with a