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Bald Eagle (American Eagle)
Primary flight feather (remige)

Bald Eagle (American Eagle)

Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Accipitriformes, Family: Accipitridae, Genus: Haliaeetus, Species: Haliaeetus leucocephalus

Family: Accipitridae (Hawks, Eagles, and Kites)

Shape
Asymmetrical vane with a gently tapering and pointed tip, characteristic of an outer wing flight feather adapted for soaring and high-speed maneuvers.
Size
Approximately 14-16 inches long, consistent with a primary flight feather from an adult Bald Eagle. Primaries for this species typically range from 12 to 18 inches.
Rarity
Common in suitable habitats across its range, having recovered significantly from historical population lows.
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Description

The Bald Eagle is a magnificent bird of prey with a dark brown body, distinctive white head and tail, and a bright yellow bill. As apex predators, they are powerful fliers with a broad wingspan reaching up to seven feet.

Colour & Pattern

Striking bi-color pattern with deep, dark charcoal-black or brownish-black on the distal portion and clean, stark white on the proximal and inner web base, typical of adult Bald Eagle wing feathers.

Barb Structure

Tightly interlocked pennaceous structure with well-developed barbicels and hooklets providing a strong, airtight surface for flight. No afterfeather is present.

Texture & Surface

Smooth, stiff, and semi-glossy on the upper surface with a waterproof, durable texture designed to withstand strong aerodynamic forces.

Key Features

Distinctive solid dark tip transitioning sharply to a stark white base, robust white rachis, and large size characteristic of adult eagle flight feathers.

Habitat

Found near large bodies of open water with an abundant food supply and old-growth trees for nesting, including seacoasts, rivers, large lakes, and marshes.

Geographic Range

North America, ranging from Alaska and Canada down through the United States to northern Mexico.

Ecological Role

Apex avian predator that helps regulate fish, waterfowl, and small mammal populations, serving as a key bioindicator of aquatic ecosystem health.

Similar Species

Golden Eagle (Aquila chrysaetos), whose feathers are generally entirely dark brown or feature mottled white patches rather than a clean, sharp black-and-white demarcation.

Interesting Facts

Despite their name, Bald Eagles are not actually bald; their white-feathered head simply stands out sharply against their dark body. Their nests are the largest of any North American bird.

Condition Notes

Excellent condition with intact barbs, clean edges, and no visible signs of fading, wear, or parasitic damage.