
Eurasian Eagle-Owl
Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Strigiformes, Family: Strigidae, Genus: Bubo, Species: Bubo bubo
AI-generated identification · may be incorrectFamily: Strigidae (Typical Owls)
- Shape
- Symmetrical vane with a broad, rounded tip and soft margins
- Size
- Approximately 15-20 cm long, typical for a large contour or covert feather of this massive owl species
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Description
The Eurasian Eagle-Owl is one of the largest living species of owls, characterized by prominent orange eyes, distinct ear tufts, and a powerful, heavily barred plumage. The feather exhibits the hallmark velvety texture of Strigidae feathers, designed for silent predatory ambushes.
Colour & Pattern
Intricate vermiculations and bold dark brown bars on a pale buff and grayish background, providing excellent camouflage
Barb Structure
Plumulaceous at the base with a well-developed downy portion, transitioning to pennaceous with velvety, modified barbules that eliminate flight noise
Rachis & Barb Pattern
Sturdy yet flexible whitish-buff rachis with densely packed barbs extending at a wide angle, featuring soft, velvety fringes
Texture & Surface
Extremely soft, velvety, and matte texture, completely lacking the harsh stiffness of diurnal raptor feathers to ensure acoustic stealth
Feather Placement
Body flank or upperwing covert, adapted for silent flight and thermal insulation
Key Features
Large size, soft velvety pile on the upper surface, and distinct dark brown transverse barring and vermiculation over a warm buff background
Habitat
Found in a wide variety of habitats ranging from northern coniferous forests and taiga to rocky mountainous terrain, steppes, and semi-deserts with rocky outcrops
Geographic Range
Widespread across much of Eurasia, spanning from Western Europe (including France) east across Russia and Siberia to the Pacific coast and Sakhalin
Ecological Role
Acts as an apex nocturnal predator controlling populations of small to medium mammals and birds, serving as an indicator of ecosystem health
Similar Species
Long-eared Owl (Asio otus) and Tawny Owl (Strix aluco), though both are significantly smaller with different proportions and barring scales
Interesting Facts
Eurasian Eagle-Owls are apex avian predators capable of taking prey as large as hares, foxes, and even other medium-sized raptors. Their deep, resonant hoots can be heard for miles across their territory.
Cultural Significance
Historically used in falconry as a lure to trap other raptors, and featured widely in European folklore as a symbol of wisdom or an omen of doom
Field Identification Tips
Look for the exceptionally soft, silent-flight adaptations, distinctive heavy barring pattern, and large size when searching near rocky roosts or mature wooded cliffs
Condition Notes
Good condition, fresh appearance with intact barbs and minimal fraying at the edges
Notes
Allier, France