[TheMentat]

Originally Posted by Hugh R

How Do Wind Turbines Kill Birds | Wind Farms Eagles | LiveScience

USATODAY.com - Wind turbines taking toll on birds of prey

sorry... but neither of those articles confirm that they are the BIGGEST migratory bird killers.

Of course, birds die from other causes, too: Structures like glass-walled office buildings and utility towers, vehicular collisions and carnivorous animals (including domestic cats) kill far more birds each year than wind turbines do.