28 Apr '12, 11pm

Communication Towers Kill Nearly 7 Million Birds a Year | Care2 Causes

Communication Towers Kill Nearly 7 Million Birds a Year | Care2 Causes

Nearly 7 million birds die every year as they migrate from Canada and the U.S. to central and south America at communication towers according to a new study published in PLoS ONE . The 84,000 towers provide TV and radio frequencies and can be as high as 2,000 feet. As Science Daily notes, 250,000 birds were killed in the Exxon Valdez oil spill and the Empire State Building is 1,250 feet high. The study, entitled “An Estimate of Avian Mortality at Communication Towers in the United States and Canada,” found that taller towers posed the greatest threats to migrating birds. Only 1.6 of the towers — about 1,000 — are taller than 900 feet but they killed 70 percent of the birds, some 4.5 million a year. Among the birds who are killed are the Common Yellowthroat and the Tennessee Warbler, insect eaters who help to keep forests healthy. It is not the freestanding towers that are ...

Full article: http://www.care2.com/causes/communication-towers-kill-nea...

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