Well, she is an amazon, and they have been known to reach fifty years of age. 
I think that this might vary a lot according to health, nutrition, etc.
Just like humans. I've noticed that orange wings have a tendency to end up 
with emosional problems. Ussually its allways due to mishandling when young.
Just keep giving her the time and love that you have been given her. With
time, she will improve.  
 
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