Home range and habitat use by the Long-eared Owl in northwestern Switzerland

  • Henrioux F
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The home ranges and hunting activities of 14 Long-eared Owls (Asio otus) were examined using radiotelemetry in an agricultural area of northwestern Switzerland from 1993-96 to determine the species' habitat requirements. Average home-range size was 980 ha and size was significantly correlated with the amount of the range that was inhabited by humans (rs = 0.88, P • 0.001). Long-eared Owls used open fields without trees less than expected according to their availability and preferred wooded areas bordering on fields where they perched during the night. Flight activity patterns varied among seasons with rain, fog, and summer and spring winds decreasing flight activity

Author-supplied keywords

  • Asio otus
  • Long-eared Owl
  • Switzerland
  • activity
  • habitat
  • radiotelemetry
  • range

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  • Fabienne Henrioux

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