A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL. The file type is application/pdf.
application/pdf
Karla A. Kinstler. "Great Horned OwlBubo virginianusVocalizations and Associated Behaviours." Ardea 97.4 (2009) 413-420