Peach Front Conure Good Choice What Is Wrong With My Peach Fronted Conure's Feathers?

What is wrong with my Peach Fronted Conure's feathers? - peach front conure good choice

My Parakeet losing feathers on the head and neck. I have not seen, plucking, even if I went into the day. There are missing many feathers, but it is remarkable. What should I do believe, as they were before? Any tips?