[bwteim]

You are correct, one must also see mortality in relation to collisions with other man-made objects. From the Google link I found
http://greengold.org/wind/faqs.php

The following is the estimated annual avian collision mortality in the USA

- Vehicles: 60 million - 80 million
- Buildings & windows: 98 million - 980 million
- Power lines: 10,000 to 174 million
- Communication towers: 4 million - 50 million
- Wind turbines: 10,000 - 40,000

Note that above numbers do not include domestic cats and their damage. It appears that wind turbines are at the bottom of the damage category...

[Eala]

Interesting numbers. Thanks!

[Slicksadick]

- Vehicles: 60 million - 80 million - Buildings & windows: 98 million - 980 million - Power lines: 10,000 to 174 million - Communication towers: 4 million - 50 million - Wind turbines: 10,000 - 40,000

Note that above numbers do not include domestic cats and their damage..

I found a number on cats, 150,000 killed per day by cats in Great Britan alone.