Symptoms of an underactive thyroid manifest themselves in dry skin and feathers, sensitivity to cold, fatigue, constipation, repeated infections and so forth. By supplying a bird's diet with kelp, this may increase its basal metabolic rate, improve the release of energy from foods, and reduce excess body weight. Kelp also assists in the elimination of toxins and may help remove toxic metals from the body. It is rich in the following nutrients - iodine, potassium, sodium, calcium, magnesium, sulfur, silicon iron, and B complex vitamins. Another seaweed that is beneficial to health is dulse and can be added to the diet in place of kelp.
Kelp comes in either a powder or granulated form.
I use kelp as a supplement in my birds' diets. The pumpkin seed is highly nutritional and is an excellent source of beta carotene, B vitamins, zinc, iron, calcium, magnesium, and phosphorus. It is used as anti-parasitic agent and may also increase fertility. Pumpkin seeds are an ingredient in my birds' diets. Rose Hips - Rose hips are rich in vitamin C and contain 60 times more vitamin C than lemons.