Asio flammeus
The Short-eared Owl (*Asio flammeus*) is a medium-sized owl recognized by its streaky brown upperparts and pale, often buffy or whitish, underparts with distinct streaking on the breast. Measuring 34-43 cm (13-17 in) in length with a wingspan of 90-110 cm (35-43 in) and weighing 200-475 g (7.1-16.8 oz), it is smaller than many of its nocturnal relatives. Key field marks include striking yellow eyes, often surrounded by dark patches, and very short, barely visible 'ear' tufts, which give the s...
This owl primarily inhabits open country such as grasslands, prairies, tundra, marshes, bogs, and agricultural fields, often at low elevations.
The Short-eared Owl's diet consists mainly of small mammals, primarily voles, mice, and lemmings, supplemented by small birds and large insects. It hunts by flying low over open fields and pouncing on prey detected by keen eyesight and hearing.
Short-eared Owls are notably crepuscular and often diurnal, especially during winter or in high latitudes, preferring to hunt in late afternoon or early morning. They roost on the ground, frequently forming communal roosts of dozens to hundreds of individuals during winter, offering safety in num...
The Short-eared Owl boasts a nearly circumpolar breeding distribution across the Northern Hemisphere, spanning North America, Europe, and Asia, extending into South America and oceanic islands. In North America, it breeds across most of Canada and Alaska, extending south into the northern contigu...
Least Concern
- The Short-eared Owl is one of the most widespread owl species in the world, found on all continents except Antarctica and Australia. - Its distinctive flight, often described as 'moth-like' or 'butterfly-like,' helps distinguish it from other raptors. - Unlike most owls, Short-eared Owls are fr...