Nocturnal Bird Migration Near Wind Turbine

Thermal movie of songbirds migrating in close vicinity to a wind turbine at night (29Sep08). Warblers, sparrows, and thrushes, etc. heading south for the winter. Their short flight calls can be heard. The wind turbine has a height of 125 meters above ground (including blades). Most birds appear to be flying 30-80 meter above ground level. Some appear disoriented and are circling about. This is a dense low-altitude nocturnal flight caused by low cloud ceiling and montane terrain…conditions where wind turbines may be a significant collision hazard to migrating birds. Under clear skies these birds would typically be flying much higher than the wind turbine and collision risk would only be an issue during takeoff and landing.

You may also be interested in:

• Wind Turbine Collapses Near Weatherford OK
• Eagle, NY No Wind Turbine Noise. A Bigger Lie!
• Scoraig Wind turbine Skylines
• How to make wind turbine copper coils yourself stator do it yourself cheap DIY
• Lenz 2 Wind turbine into Grid tie inverter with Ni Cad battery connected
• A WIND TURBINE UPDATE ON THE HARBOR BREEZE MODEL.wmv
• PART 6 HOW TO CEILING FAN WIND TURBINE
• Hauling giant wind turbine blades through an intersection
• pvc wind turbine out of drill 2
• Small Wind Turbine High Winds