J. M. Ruth W.C. Barrow D.K. Dawson R.H. Diehl A. Manville M.T. Green D.J. Krueper S. Johnston R. Sojda 2005 <p>Migratory birds face many changes to the landscapes they traverse and the habitats they use. Wind turbines and communications towers, which pose hazards to birds and bats in flight, are being erected across the United States and offshore. Human activities can also destroy or threaten habitats critical to birds during migratory passage, and climate change appears to be altering migratory patterns. The U.S. Fish and Wildlife Service (USFWS) and other agencies are under increasing pressure to identify and evaluate movement patterns and habitats used during migration and other times.</p> application/pdf 10.3133/fs20053048 en U.S. Geological Survey Using radar to advance migratory bird management: An interagency collaboration reports