TY  - RPRT
TI  - Evaluation of aerial survey methods for Dall's sheep
AU  - Mark S. Udevitz
AU  - Brad S. Shults
AU  - Layne G. Adams
AU  - Christopher Kleckner
PY  - 2006
DO  - 10.2193/0091-7648(2006)34[732:eoasmf]2.0.co;2
UR  - https://pubs.usgs.gov/publication/70028917
ID  - 70028917
ER  -