Game and Fish rounded up 45-antelope in the Prescott Valley area due to their habitat being encroached upon by development. The animals were transported almost 300-miles south to release sites near Bonita, Altar Valley and San Bernardino Valley, where they will bolster a small population numbering about 100. Extensive habitat improvement work has been done in the areas over the past 10-years in partnership with the Arizona Antelope Foundation and the National Resources Conservation Service. As for the remaining pronghorn near Glassford Hill, Game and Fish expects the lower-elevation grassland habitat to be completely developed within the next 5- to-10-years, resulting in a decrease in the population through natural attrition.