Has anyone ever made a crystal Mammon, btw I mean the actual Mammons from Taiwan like this one
For those who don't know a crystal parrot is red Texas x Blood parrot, they look like this one which is not mine.
That one is not mine, but as far I as know it is a probably a 50/50 chance as to whether the males are not fertile because one of their parents has the gene for fertility and one doesn't.