Historical and Current Range of Sage Grouse Habitat
Comparing estimates of Greater Sage Grouse distribution from before settlement of the area (light green: prior
to about 1800) with the current range (dark green: 2000) shows fragmentation of the sagebrush habitat required by this species.
Over the last century, the sagebrush
to agriculture, causing a decline in Sage Grouse populations. (Figure source: adapted from Aldridge et al.
Wyoming Ecological Services).