30 July 2012 Blinded by the Light Posted by: Heidi Ridgley | Leave a comment | Share: This common yellowthroat risks collision with cell towers during migration. © Michael R. Duncan Migrating birds fly high, fast and far from the United States and Canada to Central and South America. But on a cloudy night, the sight of a red light on a communication tower can draw them in and hold them spellbound. Nearly 7 million migrating birds die a year, victims of the 84,000 towers that dot the North American skyline, according to a University of Southern California study, funded in part by Defenders of Wildlife. During stormy weather, clouds obscure the stars and force birds to fly at lower levels without their navigational tools. Blinking tower lights don’t confuse them. It’s the steady-burning red ones. The birds end up circling the tower and run into the dozens of cables, known as guy wires, that prop up a tower. Researchers found the taller the tower, the greater the threat. Of the 84,000 communication towers in North America, only 1,000 or so rise above 900 feet, but they account for 70 percent of the tower-related bird deaths. “That amounts to a staggering 4.5 million birds each year,” says Chris Haney, Defenders’ chief scientist. The study does offer some solutions: Change the steady-burning lights on tall towers, share towers and build freestanding towers to reduce the need for guy wires. “Methods to reduce this lethal mortality are the best long-term solution,” adds Haney. Read more stories from the summer issue of Defenders. Post Your Comment Click here to cancel reply. Name (required) Mail (required) (will not be published) You May also be interested in Wild Holiday Gift Ideas Looking for the perfect gift for the wildlife-lover in your life? Here’s a collection of gift ideas perfect for you. Wolf Weekly Wrap-Up Recap of Pinetop Hearing; Celebrating Sucesses: 700,000 comments from wolf supports in to USFWS regarding wolf delisting proposal; this week USDA annouces they plan to audit Wildlife Services Predator Program. Also- another call to action for our supporters: Tell your Congressman to sign Grijalva and Fitzpatrick’s letter endorsing continued protection of gray wolves! Audit of Wildlife Services to be Conducted in 2014 United States Department of Agriculture’s Inspector General has confirmed that they will be undertaking an audit of Wildlife Services’ Predator Control program in 2014.