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| | AllRefer - Wildlife, Animals, & Birds: Eastern Screech-Owl | Otus asio > Species: |
 | | It was recently split from western screech-owl (O. kennicottii) which was formerly treated as a subspecies [ 3, 21 ]. |
 | | At the western edges of its range, it appears to be confined by the eastern front ranges of the Rocky Mountains in Wyoming, Montana, and Colorado [ 1, 13, 22 ]. |
 | | At the northern and western edges of its range, the eastern screech-owl occupies riparian woods dominated by hardwoods including boxelder (Acer negundo), green ash (Fraxinus pennsylvanica), and bur oak (Quercus macrocarpa) [ 23 ]. |
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