My macaw's wing feathers are curling. Why is this happening?

Dark feather discoloration could indicate a Vitamin A deficiency. If you bird eats mostly seeds, I recommend gradually weaning him over to a pelleted diet, such as Harrison's bird diet. Some foods that are high in vitamin A include carrots, sweet potato, kale, spinach, red pepper, mangoes, and apricots. Try sprinkling a little chili powder or paprika, both containing vitamin A, over vegetables for a little added boost and change of pace.

It could be that the feathers just got bent as they were growing in, however if you are noticing other changes, or are concerned about Coqui's overall health, it is always best to schedule a veterinary exam. They can perform routine bloodwork to check for any nutritional issues and illnesses such as PBFB if you are concerned, or even check for more common problems such as parasites or skin infections, and at least give you some peace of mind regarding it. If he checks out healthy, it could just be a prolonged molt or result of simply being him. Continuing to provide a balanced diet (it seems like you already are), providing plenty of enriching toys to prevent boredom plucking.

Thanks for reaching out about Billy and including photos. Viral diseases, nutritional deficiencies or metabolic disorders are all possible. Stress can cause feather destructive behavior. Some external parasites are only on the animal during the evening hours therefore are difficult to identify during the day. A veterinary visit is recommended. Good luck.

Thanks for reaching out about Rio and including a photo. Nutritional deficiencies, bacterial infections of the feather follicle, some viral diseases, are all possibilities (among others). With how "pinched" to tip of the feather appears, concerns over Psittacine Beak & Feather Disease, should be ruled out. A veterinary visit is recommended for testing and a nutritional consult. Feather growth requires a substantial protein expenditure so plant based proteins (beans, sprouted seeds, legumes) should be a component of the diet. Good luck.

Thanks for reaching out about your parakeet and including photos. Was he ever tested for Psittacine Beak and Feather Disease (PBFD) and Avipolyoma virus? Nutrition deficiencies, metabolic disorders (liver, renal), hypothyroidism and other endocrine problems, all must be considered. A veterinary visit is recommended to assess and provide a diagnostic/treatment plan. Review and discuss diet with the veterinarian during the visit. Good luck.

Thanks for reaching out about Bangaram and including a photo. Psittacine Feather Destructive Behavior is common in parrots, but the difficulty is acquiring a cause. Stress/behavior is common a nd can consist of breeding, nutritional or environmental stressors. Diseases can also lead to pulling feathers including infectious diseases (viral, bacterial), metabolic disorders (liver, renal), skin diseases and others. A veterinary visit is recommended to assess and try to determine a cause. Diet and husbandry practices need to be reviewed with a veterinarian experienced with birds. Some diagnostic tests will probably be recommended and necessary to come to a conclusion. There is no topical medication that is going to cure or even stabilize this condition. Good luck.

Thanks for reaching out. Diet can have an affect on pigments of the plumage. An only seed diet lack multiple vitamins, minerals and nutrients, and is a poor diet. A wide variety of vegetables and avian pellets should provide an adequate diet. If continued to be concerned, a veterinary visit is recommended to assess and provide a physical examination. Good luck.