1. Earth Research Institute, University of California, Santa Barbara, CA, USA
2. Appalachian Laboratory, University of Maryland Center for Environmental Science, Frostburg, MD, USA
3. National Socio-environmental Synthesis Center, Annapolis, MD, USA
4. Department of Forestry and Natural Resources, University of Kentucky, Lexington, KY, USA
5. Southern Research Station, USDA Forest Service, New Ellenton, SC, USA
6. Department of Biology, Indiana University of Pennsylvania, Indiana, PA, USA
7. American Bird Conservancy, The Plains, Virginia, USA