These data represent the long term average (27 year) amount of crane energy days (CED) available in wetlands. CEDs were calculated in the same way as wetland duck energy days describe above except that different habit energy density values were used. Based on the PLJV waterbird plan (2008) Appendix A, we estimated wetland CED density values for wetland habitats by dividing energetic carrying capacities for waterfowl by 3.37 to reflect the difference in mean body mass between mallards and sandhill cranes.
