Making Elvis healthy again

"This is me and my newly rescued Greater Sulphur Crested Cockatoo Elvis. I rescued him from a hoarding situation and he had medical issues when I got him. In this picture I am trying to get him to try a healthy treat made from fresh veggies and cornbread. After 3 months, most of his medical issues are cleared up and we are working on his personality issues now." ... Heather R.