Eclectus Feathers and Coat

by Blake
(Sunshine Coast, QLD, Australia)

Hi, Just had a quick question. my female Eclectus Parrot has a pretty dull coat, and a few feathers missing (we only recently got her-and she is not plucking at this point in time though can tell she previously had). It also looks like we can actually see bare skin on the bony points on the back of her wings!
Is there a certain food or vitamin that I can give her to help her Coat become full and healthy and shiny again?

Cheers