Bird Collisions at Communication Towers
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Lighted towers at night in Washington, DC, 2005 by Mike Parr, ABC
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The Challenge
The U.S. Fish and Wildlife Service estimates that as many as 7 million birds are killed each year at communications towers. The aviation warning lights on the towers disrupt the birds’ celestial navigation and draw them into a halo of light. The birds then become trapped and circle endlessly, colliding with each other and the tower, or eventually dropping to the ground from exhaustion.
ABC Conservation Framework
This program fits into two the category Eliminating Threatsof within ABC's conservation Framework. |
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Primary Birds Impacted
At least 231 species have been affected, with neotropical migrants making up a large proportion of all species killed. WatchList species killed in significant number include the Wood Thrush, Golden-winged Warbler, Cerulean Warbler, and Seaside Sparrow.
Solutions
Preventing these needless deaths can be as simple as changing a light bulb! By switching from steady-burning lights to strobe lights, bird kills can be dramatically reduced without sacrificing aviation safety. For more than ten years, however, the Federal Communications Commission (FCC), the government agency that licenses the towers, has been dragging its feet in implementing these and other regulations to prevent bird kills.
For more information see:
Fish and Wildlife Service Voluntary Guidelines on the siting of towers.
The ABC's of Avoiding Collisions at Communication Towers (USFWS document)
Download a Google Earth kmz file showing the location of every tower in the U.S. (as of March 2009). Requires Google Earth program to be installed on your PC (free download here)
ABC Results
What Next?
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The tower lighting study must be completed to enable modification of tower side marker lights |
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ABC continues to pressure the FCC to initiate lighting requirements on existing towers to minimize bird impacts |
Take Action
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