TY  - RPRT
TI  - Scaup migration patterns in North Dakota relative to temperatures and water conditions
AU  - J. E. Austin
AU  - D. A. Granfors
AU  - M. A. Johnson
AU  - S. C. Kohn
PY  - 2002
DO  - 10.2307/3803152
UR  - https://pubs.usgs.gov/publication/1001847
ID  - 1001847
ER  -