
Bald Eagle (American Eagle)
Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Accipitriformes, Family: Accipitridae, Genus: Haliaeetus, Species: H. leucocephalus
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.
- Rarity
- Common in suitable aquatic habitats following successful conservation recovery, though strictly protected.
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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.
Texture & Surface
Stiff, smooth, and rigid with a matte finish; designed for aerodynamic efficiency and durability during soaring flight.
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.
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.