TY  - RPRT
TI  - Comparison of detection rates of breeding marsh birds in passive and playback surveys at Lacreek National Wildlife Refuge, South Dakota
AU  - T. Allen
AU  - S. L. Finkbeiner
AU  - Douglas H. Johnson
PY  - 2004
DO  - 10.1675/1524-4695(2004)027[0277:codrob]2.0.co;2
UR  - https://pubs.usgs.gov/publication/70026718
ID  - 70026718
ER  -