
Bald Eagle (American Eagle)
Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Accipitriformes, Family: Accipitridae, Genus: Haliaeetus, Species: H. leucocephalus
AI-generated identification · may be incorrectFamily: 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