Aerial Survey

Efficient, accurate, reliable.  HWA uses aerial survey methods for a variety of management or research applications including winter bald eagle roosting locations, population estimation and seasonal habitat use by big game, winter concentration areas and spring breeding surveys of raptors or sage-grouse, status determination of raptor nests, and collection of radio-telemetry data as part of resource selection, spatial ecology, or survival estimation.

When in the air, our biologists are equipped with resource-grade handheld computers with integrated GPS  receivers or tablet computers with external GPS receivers for spatial data capture, attribution, editing, and  navigation.  Examples of aerial survey experience include:

  • Resource selection by greater sage-grouse during severe winter conditions, Great Divide Basin, Wyoming
  • Telemetry-based assessment of waterfowl nest depredation by mesocarnivores, Deer Flat National Wildlife Refuge, Idaho
  • Raptor nest inventory and status surveys via helicopter and fixed-wing aircraft, over 100 projects in Wyoming, Montana, and Colorado
  • Greater sage-grouse and sharp-tailed grouse lek surveys
  • GPS telemetry elk study, Raton Basin, Colorado
  • Experimental black-footed ferret surveys via helicopter, Natrona County, Wyoming
  • Mexican spotted owl habitat assessment, Southern Ute Indian Reservation, Colorado
  • Waterfowl census, Duck Valley, Idaho and Nevada
  • Mountain plover and prairie dog habitat inventory and assessment, various projects in Wyoming, Colorado, and Montana