Strange disaster math

Alex Tabarrok at Marginal Revolution:

Number of birds killed by the BP oil spill: at least 2,188 and counting.

Number of birds killed by wind farms: 10,000-40,000 annually.

Number of birds killed by cars: 80 million annually.

Number of birds killed by cats: Hundreds of millions to 1 billion annually.

Don't worry there is some good news.

Number of birds killed by fisheries: tens to hundreds of thousands annually (fortunately for the birds, some of these fisheries are now shut down).