Contents -- Preface -- Acknowledgments -- Contributors -- Reviewers -- I. Winter in Perspective -- 1. Waterfowl in Winter: Past, Present, and Future -- 2. Some Considerations in Modeling the Mallard Life Cycle -- II. Reproductive and Social Behavior -- 3. Pair Bond Duration and Timing of Its Formation in Barnacle Geese (Branta leucopsis) -- 4. Variations in Pair Bond and Agonistic Behaviors in Barnacle Geese on the Wintering Grounds -- 5. Social Behavior and Pairing Chronology of Mottled Ducks during Autumn and Winter in Louisiana -- 6. Weak Family Associations in Cackling Geese during Winter: Effects of Body Size and Food Resources on Goose Social Organization -- 7. Formation of Feeding Flocks during Winter by Dusky and Taverner's Canada Geese in Oregon -- 8. Sex Specificity of Behavioral Dominance and Fasting Endurance in Wintering Canvasbacks: Experimental Results -- 9. Workshop Summary: Courtship and Pairing in Winter -- III. Activity Budgets -- 10. Time-Activity Budgets of Nonbreeding Anatidae: A Review -- 11. Diurnal Behavior Patterns of Waterfowl Wintering on the Columbia -- 12. The Need for Nocturnal Activity and Energy Budgets of Waterfowl -- 13. Workshop Summary: Techniques for Timing Activity of Wintering Waterfowl -- IV. Community and Feeding Ecology -- 14. Structure of the Winter Duck Community on the Lower Colorado River: Patterns and Processes -- 15. Feeding Ecology of Canvasbacks Staging on Pool 7 of the Upper Mississippi River -- 16. Workshop Summary: Feeding Ecology -- V. Weights, Molts, and Condition -- 17. Annual Body Weight Change in Ring-Necked Ducks (Aythya collaris) -- 18. Spatial and Temporal Variation in Winter Weights of Mississippi Valley Canada Geese -- 19. Examining Waterfowl Condition: Skewed Ideas on the Normal Procedure.

20. Nutrient Reserve Dynamics of Female Mallards during Spring Migration through Central Iowa -- 21. Workshop Summary: Nutrition, Condition, and Ecophysiology -- VI. Habitat Resources and Habitat Selection -- 22. Waterfowl Use of Forested Wetlands of the Southern United States: An Overview -- 23. Potential Effects of Changing Water Conditions on Mallards Wintering in the Mississippi Alluvial Valley -- 24. Duck Food Production in Openings in Forested Wetlands -- 25. Winter Body Condition of Northern Shovelers on Freshwater and Saline Habitats -- 26. Distribution and Numbers of American Black Ducks along the Maine Coast during the Severe Winter of 1980-1981 -- 27. Cover Type Relationships and Black Duck Winter Habitat -- 28. Workshop Summary: Habitat Selection -- VII. New Habitats and Habitat Management -- 29. The Role of Parks in the Range Expansion of the Mallard in the Northeast -- 30. Use of Catfish Ponds by Waterfowl Wintering in Mississippi -- 31. Waterfowl Habitat Created by Floodwater-Retarding Structures in the Southern United States -- 32. Experimental Plantings for Management of Crayfish and Waterfowl -- 33. Production, Management, and Waterfowl Use of Sea Purslane, Gulf Coast Muskgrass, and Widgeongrass in Brackish Impoundments -- 34. Workshop Summary: Habitat Management in Winter -- VIII. Harvest, Distribution, and Population Status -- 35. Recoveries of North American Waterfowl in the Neotropics -- 36. Mobility and Site Fidelity of Green-Winged Teal Wintering on the Southern High Plains of Texas -- 37. History and Status of Midcontinent Snow Geese on Their Gulf Coast Winter Range -- 38. Recent Changes in Wintering Populations of Canada Geese in Western Oregon and Southwestern Washington -- 39. Use of the Missouri River in South Dakota by Canada Geese in Fall and Winter, 1953-1984.

40. Estimating Populations of Ducks Wintering in Southeast Alaska -- 41. Dabbling Duck Harvest Dynamics in the Central Valley of California - Implications for Recruitment -- 42. Workshop Summary: Species and Population Status and Distribution -- 43. Workshop Summary: Hunting Vulnerability and Mortality -- IX. Decimating Influences: Habitat Loss, Toxins, and Disease -- 44. Wintering Waterfowl Habitat in Texas: Shrinking and Contaminated -- 45. Ingestion of Shotshell Pellets by Waterfowl Wintering in Texas -- 46. Workshop Summary: Toxins, Disease, and Lead Poisoning -- 47. Workshop Summary: Habitat Loss and Its Effect on Waterfowl -- Index -- A -- B -- C -- D -- E -- F -- G -- H -- I -- J -- K -- L -- M -- N -- O -- P -- Q -- R -- S -- T -- U -- V -- W.