@techreport{Erickson-2007-3007,
  author = {Erickson, W and Strickland, D and Shaffer, J and Johnson, D},
  title = {Protocol for Investigating Displacement Effects of Wind Facilities on Grassland Songbirds},
  institution = {US Geological Survey (USGS)},
  year = {2007},
  month = {feb},
  url = {http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1116&context=usgsnpwrc},
  keywords = {Wind Energy, Land-Based Wind, Displacement, Passerines, Birds, Bats},
}