Hi I have a question about my parrots plumage. my parrot has some black tips on some of his feathers. I recently (maybe 4 months ago) switched him to a diet of chop in the morning and pellets in the evening (he used to get only pellets). I just want to make sure that the black on his feathers look like normal wear and tear and not nutritional, since I switched up his diet. Please let me know what you think, thank you in advance!