How Big Do Owls Get?


Owls come in many shapes and sizes, with some being quite small and others being surprisingly large.

Here are some examples of the size of different owl species:

  • Great Horned Owl: On average, great horned owls can grow to over 2 feet tall and weigh up to 3.6 pounds (in females).

    In some sub-species, they can even weigh up to 5.5 pounds.

    They have wingspans that reach up to 4.6 feet.
  • Blakiston’s Fish Owl: This is the largest owl in the world, with a wingspan of 178-190 cm and a weight of 2.9-4.6 kg.
  • Eurasian Eagle Owl: This species can grow to have a longer body than Blakiston’s Fish Owl, at up to 75 cm long.

    However, they have smaller wingspans of only up to 188 cm, making them only the second-largest owls in the world.
  • Barred Owl: This species has a wingspan of 37 to 49 inches, which is more than four feet.

    They are slightly smaller than the great horned owl but are much less aggressive.

It’s worth noting that the size of owls can vary depending on the subspecies and other factors.

What Are Some Of The Largest Owl Species In Terms Of Size And Wingspan?

There are several owl species that are among the largest in the world in terms of size and wingspan.

Here are some of them:

  • Blakiston’s Fish Owl: This is the largest owl in the world, with a wingspan that measures between 5 feet 10 inches and 6 feet 3 inches.

    They can weigh up to 8.8 pounds and are found in northeast Asia, primarily China, Japan, and eastern Russia.
  • Eurasian Eagle Owl: This is one of the largest owls in the world, with wingspans that reach more than six feet across.

    They are found throughout Europe and Asia, but are not native to America.
  • Great Grey Owl: This is the longest owl in the world, with a length of up to 33 inches and a wingspan of up to 5 feet.
  • Snowy Owl: This owl is closely related to the Great Horned Owl, but is slightly larger and has different markings.

    It has an impressive wingspan of up to 5 feet.
  • Great Horned Owl: This is one of the largest owls in North America, with a wingspan of up to 5 feet.
  • Verreaux’s Eagle Owl: Also known as the Milky Eagle Owl or the Giant Eagle Owl, this is the largest owl in Africa and the largest owl in the tropics.

    It grows up to 66 cm long, with a wingspan of up to 164 cm.

How Does The Size Of Owls Vary Across Different Regions Or Habitats?

The size of owls can vary across different regions and habitats.

Here are some key points:

  • The smallest owl is the elf owl, which weighs as little as 31 g and measures some 13.5 cm.
  • The largest owls are the Eurasian eagle-owl and Blakiston’s fish owl.
  • In most species, female owls are larger than males.
  • Burrowing owls are one of the smallest owl species in North America.
  • Snowy owls are among the largest North American owl species.
  • The range and habitat of owls varies widely, from the Arctic tundra to old-growth forests to arid deserts and flat scrubland.
  • Owls lay eggs one to six times per year, depending on the species and the climate.
  • Owls select prey based on predator body size, prey class, environmental variables, and taxonomic specialization.

Are There Any Physical Or Behavioral Characteristics Associated With Larger Owl Species Compared To Smaller Ones?

There are some general physical characteristics of owls that can vary between species, which may be relevant to size differences:

  • Size: Female owls are usually larger than males in most species.
  • Facial Disc: An owl’s face is distinctly shaped with a disk-like structure that surrounds the bill and eyes.

    True owl species have ear tufts that enable them to camouflage themselves while roosting.
  • Wingspan: Owls have large wings with a wide range of wingspans.

    For example, barn owls have a wingspan of 39.4-49.2 inches.
  • Legs and Feet: Barn owls have long legs, which is an adaptation for diving into long grasses and catching small mammals which they feed on.

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