The percentage and number of individuals of the continental population estimated to be killed by collisions with turbines each year for the top 20 species of small passerines, in comparison to their estimated population sizes, derived from 116 studies of bird collisions at wind energy facilities in

aincludes carcasses found during scheduled carcass searches and incidentally.
bAverage estimated number of fatalities each year adjusted by the bias value that was the lowest and for operating capacity (see text and Appendix S9).
cAverage estimated number of fatalities each year adjusted by the bias value that was the highest and for operating capacity (see text and Appendix S9).
dPopulation estimates obtained from the Partners in Flight Landbird Population Estimates Database [29].
ePercent of population affected annually, adjusted by the bias value that was the lowest.
fPercent of population affected annually, adjusted by the bias value that was the highest.
Two values are presented for both percentage and number, representing the extreme values of the range of adjustments applied for each species. Also included are the number of dead birds found and the percent composition by species for the 116 studies. Results for all species are presented in Appendix S10a.
The percentage and number of individuals of the continental population estimated to be killed by collisions with turbines each year for the top 20 species of small passerines, in comparison to their estimated population sizes, derived from 116 studies of bird collisions at wind energy facilities in the United States and Canada.