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The Australian Barn Owl, Tyto alba, is a medium-sized owl with a large head and a characteristic heart-shaped face. They are found all across Australia and are the most widespread of the owls, with subspecies on every continent except Antarctica. These nocturnal predators feed on small mammals, mainly rodents, and birds, but also insects, frogs, and lizards.
| Characteristics | Values |
|---|---|
| Diet | Small mammals, rodents (especially the house mouse), birds, insects, frogs, and lizards |
| Habitat | Open, arid country, such as farms, heaths, and lightly wooded forests |
| Distribution | Found all across Australia and on every continent except Antarctica |
| Hunting Style | Hunt in flight, searching for prey on the ground using their exceptional hearing |
| Breeding | Takes place in response to food availability, often twice per year, and usually from autumn to spring |
| Nesting | Prefer old-growth, hollow-bearing trees, with the entrance about 15-25m above the ground |
| Call | Vary from a breathy hiss to an unearthly shriek, with beak snapping and clacking during mating and threat displays |
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What You'll Learn
Chief prey: House mouse
The Australian Barn Owl, Tyto alba, is a medium-sized owl with a large head and a characteristic heart-shaped face. It is a subspecies of the Barn Owl, which is found on every continent except Antarctica. In southern Australia, its chief prey is the house mouse (Mus musculus).
The Barn Owl is a nocturnal hunter, using its exceptional hearing to locate prey on the ground while in flight. It also hunts by listening from a fence post or other low perch, and by flying low to the ground to spot prey. The heart-shaped structure of its facial disc channels even the slightest sound waves towards its ears, allowing it to pinpoint prey in complete darkness.
The house mouse is an introduced species in Australia, and it is one of the Barn Owl's more favoured foods. The Barn Owl's strong legs and powerful talons make it well-suited to hunting these small, quick-moving rodents.
The Barn Owl's diet is not limited to the house mouse, however. It also preys on other rodents, small marsupials, small birds, lizards, frogs, and night insects like beetles and moths. It roosts in hollow logs, caves, or dense trees during the day and prefers to hunt in open, often arid country, such as farms, heath, and lightly wooded forests.
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Other rodents
The Australian Barn Owl, Tyto alba, is found all across Australia and is the most widely distributed owl in the world. It is a medium-sized owl with a large head and a characteristic heart-shaped face. The Barn Owl's diet consists of small mammals, mainly rodents, and birds, but they also eat insects, frogs, and lizards.
The Australian Barn Owl's diet includes a variety of rodents in addition to the house mouse. These owls are opportunistic feeders and will take advantage of any small mammals that they can find. This includes other introduced species such as the black rat (Rattus rattus) and the brown rat (Rattus norvegicus). They will also feed on native rodent species such as the long-haired rat (Rattus villosissimus) and the pale field rat (Rattus tunneyi). These native rats are mainly found in grassland and agricultural habitats, which the owls often hunt in. The owls' exceptional hearing allows them to locate these rodents even in complete darkness.
The Barn Owl plays an important ecological role in Australia by helping to control the populations of these rodent species, some of which are considered pests. They are also known to feed on other small mammals, such as possums, which have seen an increase in population in urban areas. The owls' ability to hunt and feed on these rodents and small mammals helps to maintain a balance in the ecosystem and can benefit agricultural areas.
It is important to note that the use of rat poisons can pose a risk to Barn Owls. If an owl consumes a rat that has ingested poison, it can also be affected and potentially die. Therefore, alternative methods of rodent control are recommended in areas where Barn Owls are present.
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Small marsupials
Australia is home to 11 species of owls, including the Barn Owl, which is found across the world. The Australian Barn Owl, or 'Tyto alba', is a medium-sized owl with a large head and a characteristic heart-shaped face. They have strong legs and powerful talons, and they are expert hunters.
Barn Owls feed on a variety of small mammals, but they are particularly fond of rodents, especially the introduced House Mouse, 'Mus musculus'. They are also known to eat small marsupials, which can include possums, as well as small birds, lizards, frogs, and insects.
The Barn Owl's hunting strategy is well-suited to catching small marsupials. They hunt at night, using their exceptional hearing and strong eyesight to locate their prey. They typically hunt from a low perch, such as a fence post, listening for the slightest sound to pinpoint the location of their prey. They may also fly low to the ground, using their keen eyesight to spot movement.
The impact of Barn Owls on small marsupial populations in Australia is not well understood. However, as natural predators, they likely play a role in controlling the numbers of these small mammals. This can have both positive and negative effects on the ecosystem, as it can help maintain a balance in the population of small marsupials, but it can also be a threat to vulnerable species.
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Birds
The Australian Barn Owl, Tyto alba, is found across the country and is the most widely distributed owl in the world. They are medium-sized owls with large heads and heart-shaped faces. They have strong legs and powerful talons. They are generally quiet, but their common call is a 12-second rough, hissing screech. They also give whistling and wheezing notes, and some snapping and bill clacking during mating and threat displays.
Barn Owls are nocturnal and hunt in flight, searching for prey on the ground using their exceptional hearing. They feed mostly on small mammals, particularly rodents, but also birds, insects, frogs, and lizards. One of their favoured foods is the introduced House Mouse, Mus musculus. In southern Australia, the house mouse is their primary prey. They also eat other small rodents, small marsupials, birds, lizards, frogs, and night insects like beetles and moths.
Barn Owls roost quietly by day in well-camouflaged spots and unseen places like tree hollows, thickly foliaged trees, caves, rock crevices, buildings, and wells. They are usually seen alone or in pairs and prefer wooded areas. They will also roost in hollow logs, so it is recommended that these are not cleared away. Their preferred habitat is open, often arid country, such as farms, heaths, and lightly wooded forests.
Barn Owls do not have a definite breeding season, but this is mostly in response to food availability, and they often breed twice per year. When nesting in tree hollows, the entrance to their home is usually 15 to 25 meters above the ground, while the actual nest may be 10 meters inside the tree. They will move to a new area if there is not enough food.
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Insects, frogs, and lizards
Barn owls are found on every continent except Antarctica and are the most widespread owl species in the world. They are medium-sized owls with large heads and heart-shaped faces. They are nocturnal and hunt at night, using their exceptional hearing to locate prey. They also have excellent vision, which they use to search for prey from a low perch or while flying low to the ground.
In Australia, barn owls eat a variety of insects, frogs, and lizards. They are known to favour the introduced house mouse (*Mus musculus*) as a food source, but they will also eat other rodents, small marsupials, and birds. The Southern Boobook Owl, the smallest and most common owl in Australia, also preys on insects, frogs, and lizards.
Insects are an important part of the barn owl's diet in Australia. They hunt for beetles and moths, which are plentiful in the country's varied habitats. Frogs are also a common food source for barn owls in Australia. The country is home to a diverse range of frog species, including the Australian green tree frog and the giant burrowing frog, which provide a nutritious meal for these owls.
Lizards are another food source for barn owls in Australia. The country has a high diversity of lizard species, including skinks, geckoes, and goannas, which vary in size and habitat. Barn owls will take advantage of the abundance of lizards in the country, especially in open, arid environments, which they prefer.
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Frequently asked questions
Barn owls in Australia eat small mammals, mainly rodents, and birds, but some insects, frogs, and lizards are also part of their diet. One of their more favored foods is the introduced house mouse.
Barn owls hunt in flight, searching for prey on the ground using their exceptional hearing. They also hunt by listening from a fence post or other low perch and will fly low to the ground to see what they can spot.
Barn owls are medium-sized owls with large heads and characteristic heart-shaped faces. They have long, strong legs with powerful talons. They are nocturnal and roost quietly by day in unseen places like tree hollows, thickly foliaged trees, caves, and rock crevices.
