Federal protection for the prairie chickens which are found in the Texas Panhandle could hamper Texas’s plan to add 5,500 megawatts of wind power in the region by 2013, a 60 percent increase for the state. The Fish & Wildlife Service recommends a five-mile buffer between turbine towers and prairie chicken mating grounds or leks. The American Wind Energy Association, an industry lobby group in Washington, said the buffer was calculated based on the impact of oil and natural gas projects on the chickens, and that more study on the direct effect of wind turbines is needed. Read more about the Prairie Chicken and Wind Project Siting