Bald Eagles are America's national bird, so why did it come so close to extinction? Although DDT is probably the biggest reason, disease and deforestation are also reasons. Disease killed many bald eagles over the years. Deforestation took away the bald eagles habitat high in the trees. DDT poisoned bald eagles through the food that they were ingesting. All together, these main factors wiped out the bald eagles species to near extinction. Bald eagles are a protected species because of disease, deforestation,
