The Bald Eagle: National Bird of the United States — Verified Facts and History

What Is the National Bird of the United States

The national bird of the United States is the bald eagle (Haliaeetus leucocephalus). This species was chosen as the national emblem on 20 June 1782, when the Continental Congress adopted the Great Seal of the United States. The selection reflected the bird’s symbolic association with freedom, strength, and long life, as well as its presence exclusively in North America. In the sealing tradition and civic heraldry, the bald eagle represents the United States’ authority and ideals.

Why the Bald Eagle Was Chosen

When Congress adopted the Great Seal, the bald eagle was selected for its symbolic resonance and geographic uniqueness. Benjamin Franklin famously criticized the initial design choice, privately favoring the turkey, but the eagle was retained for its associations with liberty and durability. The founders linked the bird’s characteristics to the aspirations of the new nation, emphasizing its role as a top predator and its striking appearance.

Symbolic Meanings and Emblem Use

As a central element of the Great Seal, the bald eagle conveys several intended meanings:

• Freedom and independence, suggested by its ability to soar and live in the wild.
• Strength and military prowess, reflected in its powerful build and hunting behavior.
• Longevity and endurance, both as a species and as a national ideal.

These attributes appear in official seals, currency, flags, and federal iconography, reinforcing continuity in government representation.

Biology and Lifespan

Bald eagles are large birds of prey with a wingspan ranging from about 1.8 to 2.3 meters (6 to 7.5 feet). Adults display a distinctive white head and tail contrasting with dark brown body plumage, while immature birds show mottled brown and white plumage over several years. They build some of the largest nests of any North American bird, often reusing and expanding platform nests in tall trees or on cliffs. With proper habitat and protection, bald eagles can live 20 to 30 years in the wild and even longer in captivity.

Physical Characteristics at a Glance

Conservation and Legal Status

By the mid-20th century, the bald eagle faced severe declines due to habitat loss, shooting, and the widespread use of DDT, which caused thin eggshells and reproductive failure. Through concerted conservation measures, legal protections, and DDT bans, populations recovered significantly. Today the species remains protected under multiple laws, underscoring its continued national importance.

Key Legal Milestones

• Bald and Golden Eagle Protection Act (1940): Prohibits take, possession, and sale of eagles or their parts.
• Endangered Species Act listing (1967): Provided additional recovery measures; delisted in 2007 while still protected by other statutes.
• Lacey Act amendments: Criminal penalties for trafficking in bald eagles.

Protected Today Under Federal Law

Current protections make it illegal to harass, harm, pursue, hunt, shoot, wound, kill, trap, capture, or collect bald eagles, or to disturb their nests. Permits are required for certain activities, and federal agencies must consult to avoid adverse effects. These measures ensure that the bald eagle’s role as national bird is supported by robust, ongoing conservation.

Notable Behavioral Traits

Bald eagles are skilled hunters and opportunistic scavengers. They frequently steal fish from other birds, and pairs often cooperatively hunt and share meals. Their calls are high-pitched and squealing, commonly associated with visual media representing freedom. Juveniles achieve adult plumage over four to five years, during which they disperse widely before settling in breeding territories.

Where to Observe and Learn More

Reliable sources for continued learning include federal wildlife agencies, conservation nonprofits, and peer-reviewed ornithological literature. Many national wildlife refuges and protected areas provide viewing opportunities during seasonal concentrations. Public engagement with responsibly managed populations helps maintain appreciation for this enduring national symbol.

Summary of Key Attributes