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  2. DomainEukaryota
    KingdomAnimalia

    Northern hawk-owl - Wikipedia

    • 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. This is the only living species in the genus Surni… See more

    Taxonomy

    The northern hawk-owl was formally described by the Swedish naturalist Carl Linnaeus in 1758 in the tenth edition of his Systema Naturae under the binomial name Strix ulula. The owl is now the only species placed in th… See more

    Description

    Male northern hawk-owls are generally 36–42.5 cm (14.2–16.7 in) long and weigh about 300 g (11 oz). Females are slightly bigger with a length of 37.2–44.7 cm (14.6–17.6 in) and a mass of about 340 g (12 oz). Bot… See more

    Distribution and habitat

    Three subspecies exist across the northern Holarctic. The North American subspecies S. u. caparoch spans from eastern Alaska through Canada to Newfoundland and in some areas extends south into northern United States. … See more

    Behaviour and ecology

    The northern hawk-owl generally starts its mating rituals at the beginning of March. After calling and pairing is complete the northern hawk-owl will build a nest and start to lay eggs. On average the northern hawk-owl will lay … See more

    Food and feeding

    The northern hawk-owl feeds on a variety of prey, which can include small rodents to mammals more robust in size, and a variety of birds — a typical diet for many boreal owls. In Eurasia the northern hawk-owl is known to fe… See more

    Conservation and status

    Due to its low density occurrence, sporadic fluctuations, and remote breeding locations, the northern hawk-owl is one of the least studied and poorly understood birds in North America. As a result, it is almost impossible … See more

    In falconry

    The northern hawk-owl is considered a falconry bird in Ontario, and may be used to hunt small game with a proper license. See more

     
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