Wind Turbines and Bird Fatalities

"Last month, biologists found 484 bird carcasses at the AES-owned Laurel Mountain wind installation in West Virginia. The mass mortality event did not involve turbines."

"...(apparently the) cause was that migrating birds were drawn to lights left on at the facility’s electrical substation in cold foggy weather. The birds, it is theorized, were galvanized and disoriented by the bright lights and circled until they died and fell out of the sky."

This article also provides an interesting chart on bird mortalities and the various causes.

Source and More here on greentechmedia