TY  - RPRT
TI  - Feeding ecology of canvasbacks staging on Pool 7 of the Upper Mississippi River
AU  - C. E. Korschgen
AU  - L. S. George
AU  - W. L. Green
PY  - 1988
UR  - https://pubs.usgs.gov/publication/85384
ID  - 85384
ER  -