To ensure that a bird stays healthy, feed it a proper diet. A balanced diet contains ingredients from all the major food groups. Adjust quantities of different foods so that your bird samples everything and doesn't fill up on just one preferred food. A seed-only diet is deficient in many nutrients and leads to malnutrition, poor feathers, increased susceptibility to illness, and a shortened life. Processed pellet foods, fruits, vegetables, cereals, breads, and proteins like beans, eggs, or meats should be offered to provide a well-balanced diet. Birds are one type of pet where we encourage the feeding of people food.