Tawny Owl Diet and Size: Feeding Habits, Predators, and Measurements
If you’ve ever heard the “too-wit too-woo” of a Tawny owl, you might not know it’s a duet between two birds. The female starts with a harsh ‘kee-vik’ and her mate answers with a softer tremulous hoot ‘who-ooooo’. This duet is their way of communicating, especially during the breeding season when they’re establishing their territory.
In this article, we’ll learn the diet, breeding patterns, and body measurements of these amazing owls. Keep reading to find out more.
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The Dietary Habits Of The Tawny Owl
Let’s look at the Tawny owl’s diet, their hunting habits, and what baby owls should be fed.
What Does A Tawny Owl Eat?
The Tawny owl’s diet includes a wide range of prey, from small mammals such as voles and mice to birds, insects, and occasionally amphibians and earthworms. Depending on their habitat, Tawny owls that live outside rural areas tend to hunt more birds and rats, while rural owls stick mainly to small mammals.
Known for their opportunistic hunting style, these predators typically hunt from a perch, using their keen night vision and sensitive hearing to catch their prey. Their diet changes with the seasons too. Winter sees them going after small mammals, whereas, in the summer months, insects and small birds become more common targets.
What To Feed A Baby Tawny Owl?
Adult Tawny Owls feed their young with a mix of small mammals, mainly targeting rodents such as voles and mice, which are vital for the chicks’ growth. The parents hunt and deliver these creatures to the nest, where the young owls eat them either whole or in large parts, depending on their size and stage of development.
Breeding Habits Of Tawny Owls
When autumn arrives, the Tawny Owl prepares for its breeding season by picking nesting sites, usually opting for natural tree hollows or abandoned nests in rocks or buildings. The male engages in courtship, bringing food to the female while displaying behaviours like swaying and preening.
February through to late March marks the beginning of the breeding season, when the female lays a clutch of 2 to 3 white eggs, usually with a gap of up to 48 hours between each one. This staggered laying means the chicks hatch at different times, leading to size differences.
The female handles incubation alone, a process lasting around 28 to 30 days, while the male brings her food. Once the chicks hatch, both parents take on feeding duties, and the young can usually fly by around 35 to 39 days old. However, the parents continue to feed them for another three months before encouraging them to leave the nest and find their own territory.
Do Tawny Owls Mate For Life?
Lifelong bonds are common among Tawny Owls, as they usually mate for life. They stay together to protect their territory and raise their young. The pair remains on their breeding ground year-round, displaying strong territorial tendencies. Their connection grows stronger through their joint efforts in nesting, incubation, and chick-rearing every year.
The Size & Weight Of Tawny Owls
Let’s take a look at the size and weight of Tawny owls, how much they weigh, and their typical length and wingspan.
How Much Does A Tawny Owl Weigh?
The weight of a Tawny owl falls between 330 and 590 grams (around 0.7 to 1.3 pounds), though this can change based on a few factors. Males, being smaller, are generally lighter than their female counterparts. Where they live can also affect their weight, with owls in colder climates sometimes carrying a bit more to keep warm.
How Big Is A Tawny Owl?
With a length of 37 to 39 centimetres, or 14.5 to 15.5 inches, the Tawny Owl fits into the medium-size category. Its wingspan, spanning 94 to 104 centimetres (that’s 37 to 41 inches), gives it the perfect balance of strength and manoeuvrability, which helps it glide smoothly through woodland areas, all while remaining agile and robust.
Are Tawny Owls Under Threat?
While Tawny owls aren’t listed as endangered, they are experiencing some tough challenges. Their main food source, particularly voles, has seen a decline, and this is crucial for their breeding success. Environmental changes, like habitat loss and the effects of climate change, are making things harder for them, sparking concerns over the stability of their population.
In the UK, tawny owls have suffered a notable population drop, with some estimates suggesting over a third fewer owls since the 1970s. Conservation plays a key role in supporting these owls, especially by maintaining habitats that provide ample food sources.
What Eats A Tawny Owl?
Tawny owls, like many birds, face their share of predators. Larger raptors like goshawks and eagle owls, along with buzzards, pose a serious threat. Mammals, too, like red foxes and European pine martens, are known to target their eggs and young. While young owls are more vulnerable, fully grown tawny owls are much safer thanks to their size and nocturnal lifestyle.
Where Can I See Tawny Owls In The UK?
Tawny owls are seen throughout the UK, favouring woodlands and parks where older trees provide ideal places for nesting and resting. They have a particular liking for broadleaved forests, which you can find in large numbers across England, Wales, and Scotland. A visit to a wildlife reserve or national parks like the Lake District or New Forest during dawn or dusk could increase your chances of spotting one.
SEE ALSO: Tawny Owl Life Cycle: Nest Building To Fledging (and everything in between)
Frequently Asked Questions
Tawny Owls eat a variety of prey, including small mammals like voles and mice, birds, insects, and sometimes amphibians and earthworms. Their diet changes with the seasons, shifting towards insects and small birds in the summer and more small mammals in the winter.
Yes, Tawny Owls are monogamous and usually mate for life. They form strong bonds, working together to protect their territory and raise their young year after year.
A Tawny Owl typically weighs between 330 and 590 grams, with males being smaller and lighter than females. Their weight can also vary depending on where they live, with colder climates sometimes leading to a higher weight.
Tawny Owls are not currently classified as endangered, but they are facing challenges, such as a decline in their food sources and habitat loss.
