The following is a very general guidebook to avian care.
Seeds are very high in fat and protein, but low in nutrition.
Although birds love the taste of seeds, these should only comprise a small portion of a bird's diet. These are akin to feeding your dog food kibbles. Each bite is uniform nutrition based on current thinkings in parrot care. These table foods should include many dark green or yellow fruits and veggies, and a little bit of pastas, grains, cooked rice, bean, and the like. Smaller birds, especially those in an aviary, can have more seeds in their diet, as their lifestyle and high metabolism will burn much more fat.