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Bald Eagle (American Eagle)
Secondary flight feather or covert, likely from an immature bird showing transition plumage

Bald Eagle (American Eagle)

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

AI-generated identification · may be incorrect

Family: Accipitridae (Hawks, Eagles, and Kites)

Shape
Symmetrical vane with a rounded to slightly blunt tip, elongated outline, moderate taper toward the base
Size
Approximately 8 to 10 inches long, consistent with a medium-to-large raptor wing feather. Full adult primaries can exceed 15 inches.
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Description

The Bald Eagle is North America's iconic raptor, instantly recognizable in adulthood by its snow-white head and tail contrasting with a dark brown body and bright yellow bill. Immature birds, which often feature mottled brown and white plumage like this feather, take up to five years to attain adult coloration. They are powerful apex predators known for soaring effortlessly on broad wings.

Colour & Pattern

Bicolored pattern featuring a dark brown, nearly black terminal tip that grades sharply into a lighter grayish-brown midsection and a clean white base near the calamus.

Barb Structure

Tightly interlocked pennaceous structure with well-developed barbicels forming a strong, cohesive vane; no visible afterfeather; barbs are intact and structurally sound.

Rachis & Barb Pattern

Strong, stout, whitish-to-ivory rachis with a rounded dorsal cross-section; barbs are densely packed, angled closely to the shaft, showing clear tonal shifts from dark brown distally to pure white proximally.

Texture & Surface

Stiff, smooth, and rigid with a matte finish; designed for aerodynamic efficiency and durability during soaring flight.

Feather Placement

Wing feather, specifically an inner secondary or a major covert, determined by its relatively broad vane and balanced width compared to asymmetrical outer primaries.

Key Features

Distinctive color block transition from dark brown at the tip through grayish-brown to a stark white base, paired with the robust, ivory-colored rachis typical of a large accipitrid.

Habitat

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

Geographic Range

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

Ecological Role

Acts as an apex avian predator and top-tier scavenger, helping to maintain healthy aquatic ecosystems by removing weak or dead fish and small mammals.

Similar Species

Golden Eagle (Aquila chrysaetos), whose feathers tend to be darker brown with golden-brown nape hackles and lack the stark white basal sections typically seen in immature Bald Eagle feathers.

Interesting Facts

Bald Eagles can dive for fish at speeds up to 100 mph. Despite their name, they are not actually bald; the white head feathers simply create a striking contrast against their dark bodies.

Cultural Significance

Deeply sacred to many Indigenous peoples across North America, symbolizing strength, courage, and spiritual connection. Historically used in ceremonial regalia and traditional items.

Field Identification Tips

Look near large bodies of water, beneath tall roosting trees, or along shorelines during spring and summer molt periods.

Condition Notes

Good condition; the vane is fully intact with no visible fraying, fault bars, or parasitic damage, though it shows natural wear consistent with a naturally dropped molted feather.

Bald Eagle (American Eagle) | Feather Identifier