Though I'm not here to pass judgement, I will say that many people believe this is not a good practice. Unfortunately, plum-headed parrots are not as abundant in captivity, so if possible, it would be better to find a male plum headed parakeet. This would ensure future generations could enjoy these spectacular parrots and their bloodlines would be pure. On the other hand, at one time Australia had a short supply of them and I believe they did breed them with Indian Ringnecks. The result was larger plum headed parakeets. Also, many Alexandrine breeders do the same to get mutations. Anyway, that is just food for thought.
But I don't know what the babies would be worth. I would place them around $120-$200 a bird. Because they are hybrid, they'd be better as pets than breeders. About the head colors, I believe you'll have to look for mutation charts/ books to find out.
Post on our genetic section, see what the other members have to say there.
Best Wishes
![Wink :wink:](./images/smilies/icon_wink.gif)
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IMRAN-C