Their wild diet is pretty much impossible to mimic... unless you have a rainforest in your back yard and a cherry-picker. My vet is Rob Marshall (author of "A Guide to Eclectus Parrots as Pet and Aviary Birds") and he has provided me with supplements that mimic the nutritional balance of the natural diet. I don't follow his feeding regime exactly, as it seems somewhat counter-intuitive at times (such as cooking EVERYTHING as it's easier to digest, but then the supplements are required to replace the nutrients lost through cooking.) either way, he's done years of research so I'm sure it's good stuff... his personal pet Eclectus' are on it.
I want to give Poe the best possible start to life, so am doing this regime to begin with at least and will decide whether I continue it. (The supplements are quite expensive - $120 which lasts 8 months approx.- but means that expensive berries, passionfruit, mangoes etc. can be replaced by supplements which may end up being cheaper.)
Since starting Poe on the proper diet, his beak has gone from an anaemic pale hue to mango-orange and his feathers have a new luster. (he's 13 weeks old, and I got him at 10weeks. I saw the changes after just over a week.)
I add the suppliments to a cooked mix of organic: rice, quinoa, soaked beans, lentils, broccoli, zucchini, strawberry, plum, apple, carrot, pumpkin, sweet potato, corn, blueberries and a little chili. (it tastes people good!)
Rob's Eclectus info. - just some general info, but good stuff.
Complete Care System For Eclectus
THE REGIME! (if you were interested)
http://birdhealth.com.au/pdf/7EclectusWeekly.pdf
http://birdhealth.com.au/pdf/7EclectusDaily.pdf