What are cockatoos allergic to?

Cockatoos can be allergic to various substances, including certain foods, environmental allergens like pollen and dust mites, and chemicals found in household products. Common food allergens include nuts, seeds, and certain fruits. Additionally, some cockatoos may react negatively to specific wood types used in toys or perches. It's important for owners to observe their birds for signs of Allergies, such as feather plucking or respiratory issues, and consult a veterinarian if needed.