TY  - RPRT
TI  - Bird population density estimated from acoustic signals
AU  - D.K. Dawson
AU  - M.G. Efford
PY  - 2009
DO  - 10.1111/j.1365-2664.2009.01731.x
UR  - https://pubs.usgs.gov/publication/70035444
ID  - 70035444
ER  -