He (she?) was predominantly on a seed diet at the pet store, not sure about before that. Since I have had him/her pellets, fresh fruit and vegetables with occasional seeds and nuts as treats only. I also give him/her boiled egg. Feathers have been brightening - has been molting around the head. No black feathers on cheeks only black and dark/grey in the ring. The darker spots in the cheeks are more grey - I think it is the fluffy underfeather showing through. No DNA testing where I live so it’s a guessing game really.