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Eurasian Eagle-Owl
Body contour feather or secondary covert

Eurasian Eagle-Owl

Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Strigiformes, Family: Strigidae, Genus: Bubo, Species: Bubo bubo

Family: 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
Rarity
Uncommon, as they are secretive, nocturnal apex predators that maintain large territories
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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

Texture & Surface

Extremely soft, velvety, and matte texture, completely lacking the harsh stiffness of diurnal raptor feathers to ensure acoustic stealth

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.

Condition Notes

Good condition, fresh appearance with intact barbs and minimal fraying at the edges

Notes

Allier, France