Tawny Owl

Identification

The Tawny Owl is a solid, round-headed, medium-sized owl with no ear tufts and a rounded, rather than heart-shaped, facial disc framed by a dark rim. Two colour morphs occur — a warm rufous-brown and a cooler grey-brown — and both are heavily streaked and mottled, which makes them nearly invisible against bark. Its eyes are dark, its head looks almost too large for the body, and the wings are broad and rounded. Separating it from the Long-eared Owl comes down to the ears and eyes: the Long-eared has tall tufts and orange-yellow eyes; the Tawny has neither.

This is a bird of mature woodland and old parkland, strictly nocturnal and rarely seen in daylight even by people who hear it nightly. From a perch it drops silently onto mice, voles, shrews, small birds, beetles and earthworms, and will take bats where the chance arises. The famous 'tu-whit tu-whoo' is a duet, not one bird: the female gives the sharp 'tu-whit', the male answers with the wavering 'hoo-hoo-ooo'. It is aggressively territorial and will strike at intruders, including people, near a nest.

Autumn and winter evenings are the time to listen — birds call from October onwards, and a single hoot carries several hundred metres through still air. Small birds give them away by day: if a mob of tits and chaffinches is scolding one spot in a wood, there is usually a Tawny Owl sitting in the middle of it. Look for pellets and whitewash under a favoured roost branch deep inside a canopy, close to the trunk.

The duet, and what it actually is

The famous tu-whit tu-whoo is not one bird. The sharp, ringing tu-whit is given by the female, and the wavering hoo-hoo-ooo that follows is the male's answer. The two phrases often overlap and can sound like a single call, which is why the duet is so widely misattributed to one bird, and it is often described as a Shakespearean invention for that reason.

Other sounds matter too. A sharp kew-wick is the alarm call, and it is worth learning because it is what most people hear when they walk too close to a nest. In autumn, young birds give a drawn-out, wavering call that is easy to mistake for something else, and the species also produces a range of soft hoots and squeaks around the nest.

Hunting and territory

The Tawny Owl is strictly nocturnal and hunts from a perch, dropping silently onto mice, voles, shrews, small birds, beetles and earthworms. It will take bats where the opportunity arises, and it is one of the few predators that regularly takes earthworms, which it finds by listening for them on the surface after rain.

Territories are held year-round and are defended vigorously, particularly in autumn when young birds are dispersing and looking for a vacant patch. Both adults will strike at intruders near a nest - including people - and a Tawny Owl has been known to draw blood with its talons. That aggression, combined with near-silent flight, is why a wood at night can feel much more eventful than a daytime visit suggests.

Confusion risks

The rounded head with no ear tufts and the dark eyes are the key marks. A Long-eared Owl has tall tufts and orange-yellow eyes, and its facial disc is more strongly marked; a Barn Owl is paler, has a heart-shaped white face and a different voice entirely.

Colour is not a reliable guide on its own, because the species occurs in a warm rufous-brown morph and a cooler grey-brown morph, and both are heavily mottled. What separates them from other brown owls is the combination of a rounded, dark-eyed face and a bulky, round-headed shape, with no tufts at any age.

Where and when to look

Mature deciduous woodland, old parkland and large gardens with older trees are the habitat. Autumn and winter evenings are the time to listen: birds call from October onwards, and a single hoot carries several hundred metres through still air. Walking a woodland ride at dusk and stopping to listen every few hundred metres is more effective than covering ground quickly.

By day, let the small birds find it for you. If a mob of tits, chaffinches and blackbirds is scolding one spot in a wood, there is usually a Tawny Owl sitting in the middle of it, pressed against a trunk and trying to look like bark. Pellets and whitewash under a favoured roost branch, deep inside a canopy and close to the trunk, confirm that the site is used regularly.

Fieldcraft and conservation notes

Roads are a major cause of death for the species, particularly for young birds dispersing in autumn and for adults hunting along verges. Slow down on wooded lanes after dark, and remember that a bird caught in headlights often freezes rather than moving.

If you find a chick on the ground in early summer, it is usually not abandoned. Tawny Owl chicks leave the nest well before they can fly and spend a week or two climbing around branches, a stage known as branching, while both parents continue to feed them. Leave it alone unless it is in immediate danger, in which case contact a licensed rehabilitator rather than handling it yourself.