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Short-eared Owl

Kingdom: Animalia    Phylum: Chordata     Class: Aves (Birds)    Order: Strigiformes      Family: Strigidae

Short-eared Owl
Short-eared Owl (Asio flammeus)


Short-eared Owl (Asio flammeus) is a medium-sized owl that frequently flies during daylight, especially at dusk and dawn, as it forages for rodents. This owl is usually found in grasslands, shrub lands, and other open habitats. It is nomadic, often choosing a new breeding site each year, depending on local rodent densities. During the day, they may be found roosting on the ground or on open, low perches. The population of Short-eared Owl is declining throughout most of its range.

Identification: Short-eared Owls are so named for the erect but barely visible ear tufts atop their heads. As the most aerial of all owls, this tawny-colored owl can be mistaken for the Northern Harrier at a distance. At 38 cm, these owls are medium-sized, with long, narrow wings. Tawny overall, they are spotted above and boldly streaked below, although streaking fades on the paler belly. Dark eye-patches offset the large golden eyes that adorn their broad facial disks. In flight, their outstretched wings expose the buffy patches above and black wrist-marks below. Their easy, wavering flight is characterized by stiff, erratic wingbeats and is very moth-like in appearance.

Calls: Silent except in the nesting season, the male Short-eared Owl gives a muffled "poo, poo, poo" in short series. When alarmed, both sexes bark out high, raspy, nasal notes "cheef, cheef, cheewaay."

Nests: Short-eared Owl nests beginning in April on the ground in a small depression excavated by the female and sometimes in ground burrows. Females select the nest site and only sparsely line it (if at all) with grasses, weeds and occasionally feathers. Often concealed by low vegetation, the nest is safe haven for the 4-14, 39 mm, creamy white, unmarked eggs of the clutch. The number of eggs laid is said to be dependant on the abundance of rodents. While the female alone incubates the clutch for 25-28 days, the male feeds her during this time. Young birds hatch asynchronously producing variously sized siblings in the nest. Both parents rear the young birds and fledging occurs in 31-36 days post-hatching.

Food: Although Short-eared Owls predominantly hunt small mammals, they also consume small birds and insects. These owls hunt at dusk and dawn and may hunt communally when prey is abundant. The primary feathers of their wings are modified to eliminate the noise of airflow, creating virtually silent flight for hunting. Soaring low over open country, these owls swoop down from the air or their perches (hawking) to snatch-up their victims with their sharp talons.



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