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Afton, Alan D., and Michael G. Anderson.  Why Have Scaup Populations 
     Declined? -- A Critical Review of Available Data and Some 
     Explanatory Hypotheses.

Allen, George T., David F. Caithamer, Mark Otto, and Robert J. Blohm..  A 
     Review of the Status of Greater and Lesser Scaup in North America.

Austin, Jane E., Diane A. Granfors, Michael Johnson, and Stan Kohn.  Timing 
     of Scaup Migration Through North Dakota Relative to Spring Temperatures 
     and the May Breeding Waterfowl Survey.

Barclay, John S., and Deborah A. Rocque.  When Greater Scaup Are "Lesser" 
     Scaup.

Clark, Robert G., Stephen W. Leach, and Russell D. Dawson.  Breeding Ecology 
     of Lesser Scaup on St. Denis National Wildlife Area, Saskatchewan.

Clark, Robert G., Alan D. Afton, and Jay J. Rotella.  Sources of Variation 
     in Annual Survival of Lesser Scaup.

Custer, Christine M., and Thomas W. Custer.  Contaminants in Scaup Wintering 
     on the Great Lakes.

Grand, Barry, Paul Flint, Dan Esler, and Tom Fondell.  Lesser and Greater 
     Scaup Studies Conducted by the Alaska Biological Science Center.

Hines, James E., and Michael A. Fournier.  Numbers and Productivity of 
     Lesser Scaup Nesting near Yellowknife, Northwest Territories, 1962-98.

Richard Jeffery, Glen A. Fox and Sean W. Kennedy, Michael Fournier, and John 
     S. Barclay.   Polycyclic Aromatic Hydrocarbons (PAHs) and Other 
     Contaminants in Mussels: a Potential Cause of Decline of Scaup Populations.

Krapu, Gary L., and David A. Brandt.   Some Reproductive Traits of Lesser 
     Scaup Breeding in North Dakota. 

Lindeman, Dorothy H., and Robert G. Clark.  Wetland Characteristics, 
     Amphipods, Land Use and Lesser Scaup Distribution in Small Saskatchewan 
     Wetlands.

MacCluskie, Margaret C., Michael G. Anderson, and Alan D. Afton.  Breeding 
     Population Survey Data and the Decline of Scaup:  A Closer Look.

Michot, Thomas C., William H. Benson, and James M. O'Neil.  Trace Element 
     Concentrations from Greater Scaup and Other Diving Ducks Wintering in 
     Apalachee Bay, Florida, Seagrass Beds.

Michot, Thomas C., and Larry A. Reynolds.  Food Habits of Greater and Lesser 
     Scaup Wintering in Apalachee Bay, Florida, Seagrass Beds.

Petrie, Scott A.  Staging Ecology of Scaup at Long Point, Lake Erie and the 
     Potential Influence of Zebra Mussel Consumption.

Reynolds, Larry A., and Vernon L. Wright.  Recovery and Survival Rates of 
     Lesser Scaup Banded in North America 1930-78.