That is nice that you fed it. I don't know what to feed it but others here will know. My first thought was that you might call a Wildlife Rehab. Specialist or is there someone you know that know of / cares for exotic birds or pets. If it is not used to being out in the wild I would think its chances for survival are pretty dim.
It is very pretty....I wouldn't mind looking out and seeing that bird in my yard.
* laughs like crow, soars like eagle with vision of hawk, haunts like loon & lulls like nuthatch ....tickle tickle, feather has most powerful medicine of all...makes you laugh *