Number of Birds Killed by Wind Turbines

Nonetheless, we estimate that between 140,000 and 328,000 (mean = 234,000) birds are killed annually by collisions with monopole turbines in the contiguous U.S. We found support for an increase in mortality with increasing turbine hub height and support for differing mortality rates among regions, with per turbine mortality lowest in the Great Plains.

Estimates of bird collision mortality at wind facilities in the contiguous United States

Note - I am trying to get the most recent bat kill figures but am waiting for a scientist to answer my email.