Testing the Effectiveness of an Avian Flight Diverter for Reducing Avian Collissions with Distribution Power Lines in the Sacramento Valley, California

Jump to: navigation, search


OpenEI Reference LibraryAdd to library

Report: Testing the Effectiveness of an Avian Flight Diverter for Reducing Avian Collissions with Distribution Power Lines in the Sacramento Valley, California

Abstract

Distribution power lines are placed high overhead, safely out of human reach; however, for birds, these overhead wires are a potentially fatal obstacle. Under low visibility conditions, birds may fly into power lines. This study’s primary goal was to determine how to reduce avian collisions with distribution power lines. A bird flight diverter designed to increase power line visibility was tested to determine its effectiveness for reducing avian collisions with a distribution power line. The 5.6‐kilometer, 12‐kilovolt distribution power line was equipped with diverters on five sections, systematically interspersed with five control sections and nine buffer spans (the distance between two power poles). Each of the treatment and control sections was made up of four continuous spans. The researchers compared the number of carcasses found below treatment, buffer, and control power lines with a block analysis of variance. Researchers also studied whether changes in avian flight behaviors were an adequate measure of diverter effectiveness for reducing avian collisions. The study found a 60 percent reduction in the number of fatalities under the treated power lines. However, avian flight height and reaction distance were not significantly different between treatments, suggesting that bird flight behavior alone may not be a sufficient method for testing diverter effectiveness. Based on these results, researchers made study design and protocol recommendations specific to distribution power lines; identified data necessary to increase precision of future avian mortality estimates; and discussed land management recommendations that could help to reduce avian collisions

with power lines.

Author 
Marcus L. Lee





Organization 
Public Interest Energy Research Program



Published 
California Energy Commission, PIER Energy‐Related Environmental Research Program, 2007



Report Number 
CEC‐500‐2007‐122


DOI 
Not Provided
Check for DOI availability: http://crossref.org


Online 
Internet link for Testing the Effectiveness of an Avian Flight Diverter for Reducing Avian Collissions with Distribution Power Lines in the Sacramento Valley, California

Citation

Marcus L. Lee (Public Interest Energy Research Program). 2007. Testing the Effectiveness of an Avian Flight Diverter for Reducing Avian Collissions with Distribution Power Lines in the Sacramento Valley, California. Sacramento, CA: California Energy Commission, PIER Energy‐Related Environmental Research Program. Report No.: CEC‐500‐2007‐122. Contract No.: 500-01-032.