Night Migrant Fatalities And Obstruction Lighting At Wind Turbines In North America

Journal Article

Title: Night Migrant Fatalities And Obstruction Lighting At Wind Turbines In North America
Publication Date:
December 01, 2010
Journal: The Wilson Journal of Ornithology
Volume: 122
Issue: 4
Pages: 744-754
Publisher: BioOne
Receptor:
Interactions:
Technology Type:

Document Access

Website: External Link

Citation

Kerlinger, P.; Gehring, J.; Erickson, W.; Curry, R.; Jain, A.; Guarnaccia, J. (2010). Night Migrant Fatalities And Obstruction Lighting At Wind Turbines In North America. The Wilson Journal of Ornithology, 122(4), 744-754.
Abstract: 

Avian collision fatality data from studies conducted at 30 wind farms across North America were examined to estimate how many night migrants collide with turbines and towers, and how aviation obstruction lighting relates to collision fatalities. Fatality rates, adjusted for scavenging and searcher efficiency, of night migrants at turbines 54 to 125 m in height ranged from <0 bird/turbine/year to 7 birds/turbine/year with higher rates recorded in eastern North America and lowest rates in the west. Multi-bird fatality events (defined as >3 birds killed in 1 night at 1 turbine) were rare, recorded at <0.02% (n  =  4) of 25,000 turbine searches. Lighting and weather conditions may have been causative factors in the four documented multi-bird fatality events, but flashing red lights (L-864, recommended by the Federal Aviation Administration [FAA]) were not involved, which is the most common obstruction lighting used at wind farms. A Wilcoxon signed-rank analysis of unadjusted fatality rates revealed no significant differences between fatality rates at turbines with FAA lights as opposed to turbines without lighting at the same wind farm.

Find Tethys on InstagramFind Tethys on FacebookFind Tethys on Twitter
 
CAPTCHA
This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.