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Bald Eagle (American Eagle)
Flight feather, primary (remex), likely an outer primary (P7-P9)

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
Asymmetrical vane with a curved, tapered profile and a rounded to slightly pointed tip; significant emargination on the inner vane near the distal portion
Size
Approximately 14-16 inches long, consistent with a large primary flight feather from an adult Bald Eagle; typical primaries for this species range from 12 to 18 inches depending on exact wing position
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Description

The Bald Eagle is North America's iconic raptor, instantly recognizable by its striking white head and tail contrasting with a dark brown body and wings, accompanied by a bright yellow bill and feet. With a massive wingspan often exceeding 7 feet, they are powerful apex predators and master soarers, utilizing thermal currents to survey waterways for fish, waterfowl, and carrion.

Colour & Pattern

Solid, deep dark brown to near-black coloration with melanin-based pigmentation throughout the vane; starkly contrasting with a very robust, pale ivory-white to yellowish rachis

Barb Structure

Tightly interlocked pennaceous structure with strong, rigid barbs and firmly attached barbules featuring microscopic hooklets (barbicels) for aerodynamic efficiency; no afterfeather

Rachis & Barb Pattern

Central shaft (rachis) is exceptionally thick, prominent, pale ivory-white, highly rigid yet slightly flexible, and flattened on the underside; barbs are densely packed, angled tightly toward the tip, transitioning smoothly along the shaft

Texture & Surface

Stiff, smooth, and matte to slightly glossy finish; highly rigid vane designed to withstand significant air pressure during flight, with smooth leading and trailing edges

Feather Placement

Wing, outer primary flight feather, determined by the strong asymmetry, stiff rachis, and pronounced emargination designed to create slots for soaring flight

Key Features

Large size, very thick and prominent pale ivory-white rachis contrasting sharply with dark brown-to-black pennaceous barbs, and strong asymmetry with pronounced outer vane emargination characteristic of large raptor primaries

Habitat

Found near large bodies of open water with old-growth trees or tall cliffs for nesting, including lakes, reservoirs, rivers, coasts, and estuaries

Geographic Range

North America, ranging from Alaska and Canada down through the contiguous United States and into northern Mexico; largely resident with northern populations undertaking seasonal southward migrations

Ecological Role

Apex avian predator playing a crucial role in maintaining aquatic and riparian ecosystem health by removing sick or dead fish and regulating prey populations; serves as a vital ecological indicator species

Similar Species

Golden Eagle (Aquila chrysaetos), which features dark brownish-black feathers that often show subtle lighter tawny or golden-brown barring or bases, particularly on covert or juvenile plumage, and a slightly different rachis coloration

Interesting Facts

Bald Eagles can reach flight speeds of up to 35-43 mph during normal flight and up to 100 mph during a dive; their nests, called eyries, are among the largest of any bird, sometimes weighing over two tons and used for decades

Cultural Significance

Deeply sacred in many Native American cultures, where their feathers symbolize strength, courage, leadership, and a bridge between humans and the Creator; strictly regulated under federal law

Field Identification Tips

Look near large bodies of water, beneath known eagle roost trees, or along shorelines during the late spring and summer molt period; always verify local legal regulations before handling or picking up raptor feathers

Condition Notes

Good condition with intact barbs and a solid rachis, showing minimal wear or fraying, likely a naturally molted feather found outdoors

Bald Eagle (American Eagle) | Feather Identifier