FWS Submissions

U.S. Fish & Wildlife Service

Using Small UAS to Estimate Abundances of Sandhill Cranes

Submitted by Anonymous (not verified) on

Historically, abundances of migratory birds have been estimated by skilled pilots and observers in fixed-wing aircraft who identify and count birds using ocular estimation techniques.  However, the number of skilled pilots/observers is limited, and the USFWS needs to explore cost-effective and safe alternatives to assess the status of  migratory birds. The use of  small unmanned aircraft systems (sUAS) was explored as an  alternative.

Wetland Topographic Mapping Using Multispectral Satellite Imagery

Submitted by Anonymous (not verified) on

Malheur Lake at Malheur National Wildlife Refuge in Harney County, Oregon, is the largest freshwater marsh in the western United States and historically one of the most productive migratory waterbird habitats along the Pacific Flyway.  The lake’s size is highly dynamic, a result of being shallow, within a closed basin, and replenished primarily by runoff from spring snowmelt.  To improve our baseline knowledge for habitat management and monitoring, a terrain model of the lake bottom  was needed in order to construct a better area-depth-volume relationship and evaluate lake-si