Testing the effectiveness of an avian flight diverter for reducing avian collisions with distribution power lines in the Sacramento Valley, California: PIER Final Project Report
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Published source details
Yee M.L. (2008) Testing the effectiveness of an avian flight diverter for reducing avian collisions with distribution power lines in the Sacramento Valley, California: PIER Final Project Report. California Energy Commission report.
Published source details Yee M.L. (2008) Testing the effectiveness of an avian flight diverter for reducing avian collisions with distribution power lines in the Sacramento Valley, California: PIER Final Project Report. California Energy Commission report.
Actions
This study is summarised as evidence for the following.
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Mark power lines to reduce incidental bird mortality Action Link |
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Mark power lines to reduce incidental bird mortality
A replicated, controlled before-and-after trial over the winters of 2003-4, 2004-5 and 2005-6, in mixed wetland and crops on Staten Island, California, USA (Yee 2008), found a 60% reduction in collision mortality across all species following the installation of ‘Firefly bird flappers’ on 20 spans of a 5.6 km section of 12 kV wire. There was also a smaller (approximately 10%) reduction in mortality in nine spans adjacent to marked spans. There was no corresponding decrease in collision mortality in 20 unmarked spans. However, markers did not appear to have an effect on bird flight behaviour. Markers were 15 x 9 cm acrylic sheets of two contrasting colours with a luminescent strip and placed at 15 m intervals, staggered to appear 5m apart. A total of 65 fatalities were recorded over the three winters.
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