Boreal Owl (Aegolius funereus)

The Boreal Owl is a small owl species that is native to the Northern Hemisphere, particularly in coniferous forests of North America, Europe, and Asia. It is also known as the Tengmalm’s Owl, after the Swedish naturalist Peter Gustaf Tengmalm, who first described the species.

The Boreal Owl is a relatively small owl, measuring only 8-10 inches in length and weighing between 3.5-7.5 ounces. It has a distinctive round head with yellow eyes and no ear tufts. Its plumage is brownish-gray with white speckles, making it a cryptic and well-camouflaged bird that is difficult to spot in its natural habitat.

The Boreal Owl is primarily nocturnal and feeds on small mammals such as voles, mice, and shrews. It uses its remarkable hearing to locate prey in the dark and swoops down to catch it with its sharp talons. The owl is also known to supplement its diet with insects and small birds.

The Boreal Owl is a solitary bird that prefers to nest in tree cavities or old woodpecker holes. The female lays between 3-7 eggs and takes care of the young while the male brings food and defends the nest. The eggs hatch after about a month, and the young fledge about six weeks later.

The Boreal Owl is currently listed as a species of Least Concern by the International Union for Conservation of Nature (IUCN). However, it is threatened by habitat loss due to logging and wildfires, as well as competition from larger owl species such as the Great Horned Owl. Climate change is also affecting the Boreal Owl’s breeding and migratory patterns, making it a species of concern for conservationists.

In conclusion, the Boreal Owl is a fascinating and elusive bird that is well-adapted to life in the coniferous forests of the Northern Hemisphere. While it is not currently endangered, it faces several threats to its survival, and efforts must be made to protect its habitat and support its conservation.

Other names

Aegolius funereus



Boreal Owl

mussol pirinenc



planinski ćuk

sýc rousný




Nyctale de Tengmalm


Civetta capogrosso


paprastoji lututė


włochatka (zwyczajna)


Мохноногий сыч

Gaćasta kukumavka

pôtik kapcavý

Mochuelo boreal


Paçalı Baykuş

сич волохатий

karvasjalg-kakk e. laanekakk



bikšainais apogs


koconogi čuk