1. Fledging times of grassland birds (2nd Edition)
- Author(s):
- Ribic, Christine A.; Pietz, Pamela J.; Koper, Nicola; Ng, Christoph S.
2. Fledging times of grassland birds
- Author(s):
- Ribic, Christine A.; Pietz, Pamela J.; Koper, Nicola; Ng, Christoph S.
3. The changing Midwest assessment: data and shapefiles
- Author(s):
- Potts, Robert S.; Gustafson, Eric J.; Stewart, Susan I.; Thompson, Frank R.; Bergen, Kathleen; Brown, Daniel G.; Hammer, Roger; Radeloff, Volker; Bengston, David; Sauer, John; Sturtevant, Brian
U.S. Department of Agriculture