Not normal. Infection plus possibly low vitamin A.
Needs avain veterinarian.
Feed bell pepper, hit chili peppers both hsve lots of vitamin A, as well as cooked carrots sbd cooked sweet potatoes. Romaine lettuce has vitamin A as well.
This link has helpful support ideas for sick bird
https://www.littlecrittersvet.com/sick-birds.pml
https://birdsupplies.com/blogs/news/144546247-parrots-and-vitamin-a-deficiency
Except :
" Parrot Vitamin A deficiency, hypovitaminosis A, is one among the most common and preventable diseases that affect your pet birds, but it frequently goes unrecognized. Generally, birds on all-seed diets will most likely suffer from vitamin A deficiency and disease, as most of the seeds, such as sunflower seeds, grains and peanuts do not contain this vitamin. Because of their selective feeding habits, vitamin A deficiency is a self-inflicted disease caused by their inadequate diet. Vitamin A is found in many fruits and vegetables, and feeding your bird with a diet rich in these will help prevent vitamin A deficiency.
This deficiency may weaken a bird and make it more susceptible to bacterial, fungal and viral infections. The cells lining the respiratory tract, reproductive organs and digestive tract undergo structural change, disabling them to secrete mucus. If left untreated, the secondary conditions may further lead to the demise of the bird. Vitamin A is a fat-soluble vitamin, and an antioxidant that helps in the growth and repair of tissues. It is also essential for the proper functioning of the bird’s eyes, skin, bones, mucus membranes and hearing"