Hall is a research biologist and project manager with Western Ecosystems Technology, Inc. (WEST). Hall earned a B.S. degree in wildlife biology from Colorado State University and M.S. and Ph.D. degrees in Zoology from the University of Wyoming. Hall worked with the Wyoming Cooperative Fish and Wildlife Research Unit as a research scientist from 1997-2001, coordinating research projects that focused on elk, mule deer, white-tailed deer, pronghorn, and bighorn sheep. Hall joined the WEST team in 2002 and his specialty areas include migration ecology, resource selection, animal capture, GPS-telemetry, and impact assessment of ungulates. He currently leads several long-term studies that evaluate the migration ecology and potential impacts of energy development on mule deer, elk, and pronghorn. Hall lives in Laramie, Wyoming and enjoys backpacking, skiing, rock climbing, and hunting.Download CV
Sawyer, H., M. J. Kauffman, R. M. Nielson, and J. S. Horne. 2009. Identifying and prioritizing ungulate migration routes for landscape-level conservation. Ecological Applications 19:2016-2025. View PDF
Sawyer, H., M. J. Kauffman, and R. M. Nielson. 2009b. Influence of well pad activity on the winter habitat selection patterns of mule deer. Journal of Wildlife Management 73:1052-1061. View PDF
Nielson, R. M., B. F. J. Manly, L. L. McDonald, H. Sawyer, and T. L. McDonald. 2009. Estimating habitat selection when GPS fix success is less than 100%. Ecology 90:2956-2962.
Sawyer, H., R. M. Nielson, F. Lindzey, L. Keith, J. Powell, and A. Abraham. 2007. Habitatselection of Rocky Mountain elk in a non-forested environment. Journal of Wildlife Management 71:868-874. View PDF
Good, R. E., R. M. Nielson, H. Sawyer, and L. L. McDonald. 2007. A Golden eagle population estimate for the western United States. Journal of Wildlife Management 71:395-402. View PDF
Sawyer, H., R. M. Nielson, F. Lindzey, and L. L. McDonald. 2006. Winter habitat selection of mule deer before and during development of a natural gas field. Journal of Wildlife Management 70:396-403. View PDF
Sawyer, H., F. Lindzey, and D. McWhirter.2005. Mule deer and pronghorn migration inwestern Wyoming. Wildlife Society Bulletin 33:1266-1273. View PDF
Sawyer, H. and F. Lindzey. 2001. Habitat selection and sexual segregation of elk in northern Wyoming. Intermountain Journal of Science 7:71-77.
Van Campen, H., J. Ridpath, E. Williams, J. Cavender, J. Edwards, S. Smith, and H. Sawyer. 2001. Isolation of bovine viral diarrhea virus from a free-ranging mule deer (Odocoileus hemionus). Journal of Wildlife Diseases 37:306-311. View PDF
October 20, 2010. Big game impact assessment: lessons learned from natural gas development in Wyoming. National Wind Coordinating Collaborative, Denver, Colorado.
Invited Speaker, October 3, 2010, Evaluating mule deer crossing structures in Nugget Canyon, Wyoming. The Wildlife Society National Meeting, Snowbird, Utah.
Invited Speaker, May 13, 2009, Identifying and prioritizing ungulate migration routes for landscape-level conservation, USGS Wyoming Landscape Conservation Initiative, Laramie, Wyoming.
Invited Speaker, Feb.22, 2009, Mule deer and energy development in Wyoming, U.S. Forest Service Region II Meeting, Fort Collins, Colorado.
November 20, 2009. Identifying and prioritizing ungulate migration routes for conservation. Wyoming Chapter of the Wildlife Society Annual Meeting, Sheridan, WY. November 12, 2008. Identifying and prioritizing ungulate migration routes for conservation.
The Wildlife Society National Meeting, Miami, Florida. Invited Speaker, Feb.8, 2007, Impacts of gas development on mule deer in western Wyoming, Montana Chapter of the Wildlife Society, Bozeman, Montana.
Invited Speaker, May 14, 2007, Impacts of gas development on mule deer in western Wyoming, Western States and Canadian Provinces Deer and Elk Workshop, Estes Park, Colorado.
Invited Speaker, Sept. 29, 2007, Big game and energy development in Wyoming, Wyoming Outdoor Council 40th Anniversary, Lander, Wyoming.