What is the Wingspan of a Eurasian Eagle-owl

by Victor
Eurasian Eagle-owl with wings spread

The Eurasian Eagle-Owl (Bubo bubo) is a magnificent bird of prey that can be found throughout much of Europe and Asia. This impressive raptor is known for its large size, striking appearance, and powerful hunting skills. One of the most fascinating aspects of the Eurasian eagle owl is its wingspan, which is among the largest of any bird in its range. In this article, we’ll take a closer look at the wingspan of the Eurasian eagle owl and explore some of the factors that contribute to its impressive size.

What is the Wingspan of a Eurasian Eagle Owl?

The wingspan of a Eurasian eagle owl can range from around 160cm to 200cm, or about 5.2 to 6.5 feet. This makes it one of the largest owls in the world, with only a few other species, such as the great horned owl and the snowy owl, having a larger wingspan. The Eurasian eagle owl’s wingspan is so large that it enables the bird to fly silently through the air while hunting, allowing it to surprise and capture its prey with ease.

What Factors Contribute to the Eurasian Eagle Owl’s Large Wingspan?

There are several factors that contribute to the Eurasian eagle owl’s large wingspan. One of the most important is its size. The Eurasian eagle owl is a relatively large bird, with an average weight of around 3-4.5 kilograms, or about 6.6-9.9 pounds. Its body size requires correspondingly large wings in order for it to fly and maneuver effectively.

Another factor that contributes to the Eurasian eagle owl’s large wingspan is its hunting style. Unlike many other owls, which hunt by flying low over the ground and grabbing prey with their talons, the Eurasian eagle owl hunts by swooping down from above and snatching its prey out of the air. This requires a lot of energy, and the bird needs large wings in order to generate the necessary lift and speed to carry out these attacks.

In addition, the Eurasian eagle owl’s wings are specially adapted for silent flight. Unlike most birds, which have feathers that make noise when they flap their wings, the Eurasian eagle owl’s feathers are specially designed to minimize sound. This allows the bird to fly more quietly and effectively track and capture its prey without being detected.

Finally, the Eurasian eagle owl’s wingspan is also influenced by environmental factors. In areas where the bird lives and hunts, there may be strong winds or other weather conditions that require it to have larger wings in order to fly efficiently. Similarly, if the bird needs to cover long distances in search of food or mates, it may need larger wings in order to conserve energy and travel more efficiently.

Significance of Wingspan:

  • Flight Efficiency:

The significant wingspan of the Eurasian Eagle Owl contributes to its flight efficiency. With broad wings and ample surface area, the owl can generate lift and maneuver with relative ease, even in different weather conditions. This adaptability allows it to hunt over various terrains, including open fields, forests, and mountainous regions.

  • Silent Flight:

Silent flight is a remarkable characteristic of many owl species, including the Eurasian Eagle Owl. The large wingspan plays a crucial role in this silent flight. The extensive wingspan allows for slower wingbeats and creates larger spaces between the feathers, reducing turbulence and minimizing the sound produced during flight. This enables the owl to approach prey silently, increasing its chances of a successful hunt.

  • Hunting Strategies:

The Eurasian Eagle Owl’s wingspan is vital for its hunting strategies. With a wingspan that allows for agile flight and precise movements, the owl can swiftly pursue and capture a variety of prey. From small mammals like rodents to birds and even larger prey, the Eurasian Eagle Owl’s wingspan contributes to its ability to cover long distances and execute quick and accurate aerial attacks.

Adaptations for Flight and Hunting:

The Eurasian Eagle Owl possesses several adaptations that contribute to its exceptional flight capabilities:

  • Feather Structure:

The owl’s feathers have specialized structures that aid in silent flight. The leading edges of the primary flight feathers have serrations, reducing noise caused by air passing over the wings. Additionally, the soft fringe on the trailing edges of the feathers helps to further dampen sound during flight.

  • Powerful Musculature:

The Eurasian Eagle Owl has robust flight muscles, allowing it to generate the power needed for its large wingspan. These powerful muscles enable the owl to sustain flight for extended periods and engage in swift aerial pursuits when hunting.

  • Acute Vision:

The Eurasian Eagle Owl has excellent vision, thanks to its large eyes and forward-facing placement. Its sharp eyesight aids in spotting prey from a distance and accurately targeting it during flight.


The Eurasian Eagle Owl’s wingspan is a remarkable characteristic that contributes to its impressive flight capabilities and hunting prowess. With an average wingspan ranging from 160 to 200 centimeters (63 to 74 inches), this owl species commands the skies with its broad wings and silent flight. The wingspan enables the Eurasian Eagle Owl to soar effortlessly, cover vast distances, and execute agile maneuvers during pursuit. Understanding the significance of the wingspan provides us with a deeper appreciation for the remarkable adaptations of this awe-inspiring bird of prey, emphasizing its crucial role in maintaining the delicate balance of ecosystems it inhabits.


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