Barred Owl Occupancy Surveys within the Range of the Northern Spotted Owl

@inproceedings{Wiens2011BarredOO,
  title={Barred Owl Occupancy Surveys within the Range of the Northern Spotted Owl},
  author={J. David Wiens and Robert G. Anthony and Eric D. Forsman},
  year={2011}
}
ABSTRACT The range expansion by barred owls (Strix varia) into western North America has raised considerable concern regarding their potential effects on declining northern spotted owl (Strix occidentalis caurina) populations, yet most information on the occurrence of barred owls in the region is limited to incidental detections during surveys for spotted owls. To address this shortcoming we investigated response behavior, detection probabilities, and landscape occupancy patterns of barred owls… 

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