The Long-eared Owl (Asio otus) is found in open forests and agricultural lands around the northern hemisphere; the Okanagan Valley is the core of the British Columbia range. Most Long-eared Owl nests in the Okanagan are found in riparian woodland; the size of coniferous forest populations is unknown but may be significant. Long-eared Owls feed almost exlusively on small mammals, particularly meadow voles. Breeding success and owl population densities vary with the cyclical vole populations. Nesting success is relatively high in the Okanagan, but some local populations may be declining due to habitat loss and perhaps other factors. Since several known breeding sites in the Okanagan have been converted to residential areas and populations in other sites may be suffering noncyclic declines, the Long-eared Owl should be considered Vulnerable in the South Okanagan.
Cannings, R.J.. 1995. Status of the Long-eared Owl in the South Okanagan - British Columbia. Ministry of Environment, Lands and Parks. Species Status Report. B78
Topic: Species status
Keywords: Long-eared Owl, Asio otus, status, Okanagan Valley, population trends, population densities, breeding, nesting, habitat, prey
Scientific Name: Asio otus
English Name: Long-eared Owl
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