Global Warmists back off on prediction

[HungLikeJesus]

As one of the articles TheMercenary linked to said, there are many human-related bird deaths due to other factors, such as tall buildings, windows, cats and cell towers. To put things into perspective, here are some statistics from the US Fish and Wildlife Service.

Some numbers:
Building window strikes: 97 to 976 million/yr
Communication tower strikes: 4 to 40 million/yr
Cars: 60 million/yr
Cats: hundreds of millions/yr

Another source said "According to the Bird Conservancy, the 15 000 existing US wind turbines kill 10 000 to 40 000 birds per year, which compares with 50 million US bird deaths per year due to transmission towers and 200 million worldwide due to avian flu in 2005. Extrapolating to 5 million 5-MW turbines needed to satisfy all electric power and energy needs worldwide gives 3 million to 13 million bird deaths per year, much less than transmission towers in the US alone."

There is obviously a lot of uncertainty in the numbers, but if people are truly concerned about bird deaths they would get rid of their cats, their cars and their cell phones.