This is a pretty dim argument against wind farms. Coal is a lot worse. Also make sure you read the punch line at the bottom.
A U.S. News and World Report chart shows estimates of how many birds are killed each year by different fuel sources.
CREDIT: U.S. NEWS & WORLD REPORT
As for coal, those bird death numbers came from a peer-reviewed study in the journal
Renewable Energy. That estimate had a more sweeping methodology, though, with the study’s author including everything from coal mining to production — and bird deaths from climate change that coal emissions produce. Together, that amounted to about five birds per gigawatt-hour of energy produced by coal, almost 8 million per year.
Either way, U.S. News notes that none of these numbers hold a candle to cats, which are estimated to kill 1.4 to 3.7 billion birds every year.
http://thinkprogress.org/climate/2014/08/25/3475348/bird-death-comparison-chart/
