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The boreal owl is 22–27 cm (8.7–10.6 in) in length and has a wingspan of 50–62 cm (20–24 in). [9] A female is heavier than a male bird and weighs 131–179 g (4.6–6.3 oz) compared with an average of 107 g (3.8 oz) for a male bird. [10] The plumage is brown above, with white flecking on the shoulders and whitish underparts with rust ...
The genus name is Latin for a screech owl, the word came from the Ancient Greek aigōlios meaning "a bird of ill omen". In Greek mythology, Aegolius was originally a man whom Zeus transformed into an owl. Species. The genus contains five species: Boreal owl or Tengmalm's owl, Aegolius funereus; Northern saw-whet owl, Aegolius acadicus
These are birds that more than half of the North American populations nest in the boreal forest. Many of these birds need mature forests or isolated, non-populated wetlands that now have been largely cleared outside of the boreal forests. Hooded merganser. Trumpeter swan, Cygnus buccinator. American wigeon, Anas americana.
The long-eared owl ( Asio otus ), also known as the northern long-eared owl [3] or, more informally, as the lesser horned owl or cat owl, [4] is a medium-sized species of owl with an extensive breeding range. The scientific name is from Latin. The genus name Asio is a type of eared owl, and otus also refers to a small, eared owl. [5]
The northern hawk-owl or northern hawk owl ( Surnia ulula) is a medium-sized true owl of the northern latitudes. It is non-migratory and usually stays within its breeding range, though it sometimes irrupts southward. It is one of the few owls that is neither nocturnal nor crepuscular, being active only during the day.
Barred owl, Yellowstone National Park. The barred owl ( Strix varia ), also known as the northern barred owl, striped owl or, more informally, hoot owl or eight-hooter owl, is a North American large species of owl. A member of the true owl family, Strigidae, they belong to the genus Strix, which is also the origin of the family's name under ...
Tyto prigoginei ( Schouteden, 1952) 18. Oriental bay owl. Phodilus badius ( Horsfield, 1821) 19. Sri Lanka bay owl. Phodilus assimilis Hume, 1877. 20. Papuan hawk-owl.
Strix passerina Linnaeus, 1758. The Eurasian pygmy owl ( Glaucidium passerinum) is the smallest owl in Europe. It is a dark reddish to greyish-brown, with spotted sides and half of a white ring around the back of the neck. [3] This species is found in the boreal forests of Northern and Central Europe to Siberia.