NPWRC Online Biological Resources
Waterfowl
- Identification Tools
- Checklists
- Distributions
- Species Accounts/Descriptions
- Are Mallards Declining in North America?
- Assessment of a Mallard Model in Minnesota's Prairie Coteau
- Behaviour Patterns of Mallard (Anas Platyrhynchos) Pairs and Broods in Minnesota and North Dakota
- Birds of the St. Croix River Valley: Minnesota and Wisconsin
- Bufflehead Brood in Northeastern South Dakota
- Determinants of Breeding Distributions of Ducks
- Determinants of Mallard and Gadwall Nesting on Constructed Islands in North Dakota
- Diet of Canvasbacks During Breeding
- Differential Effects of Coyotes and Red Foxes on Duck Nest Success
- Duck Nest Success in the Prairie Pothole Region
- Duck Nesting in the Northern Great Plains
- Early Nesting Record of Hooded Merganser in North Dakota
- Effects of Harness Transmitters on Behavior and Reproduction of Wild Mallards
- Effects of Predator Exclosure Design on Duck Brood Movements
- Effects of Water Conditions on Clutch Size, Egg Volume, and Hatchling Mass of Mallards and Gadwalls in the Prairie Pothole Region
- Effects of Weather on Breeding Ducks in North Dakota
- Endangered and Threatened Species Recovery Program
- Environmental Characteristics Associated with the Occurrence of Avian Botulism in Wetlands of a Northern California Refuge
- Factors Associated with Autumn Rearing of Duck Broods in Temperate North America
- Factors Associated with Duck Nest Success in the Prairie Pothole Region of Canada
- Factors Influencing Summer Breeding in Prairie Ducks
- Factors Limiting Mallard Brood Survival in Prairie Pothole Landscapes
- Fall and Winter Foods of Northern Pintails in the Sacramento Valley, California
- Feeding Ecology of Northern Pintails and Green-winged Teal Wintering in California
- Food Habits of Diving Ducks in the Great Lakes After the Zebra Mussel Invasion
- Giant Canada Goose Flocks in the United States
- Habitat Use and Movements of Canvasback Broods in Southwestern Manitoba
- Homing and Reproductive Habits of Mallards, Gadwalls, and Blue-winged Teal
- Impact of Red Fox Predation on the Sex Ratio of Prairie Mallards
- Importance of Individual Species of Predators on Nesting Success of Ducks in the Canadian Prairie Pothole Region
- Influence of Age and Selected Environmental Factors on Reproductive Performance of Canvasbacks
- Long-term Declines in Nest Success of Prairie Ducks
- Mallard Recruitment in the Agricultural Environment of North Dakota
- Mate Loss in Winter Affects Reproduction of Mallards
- Nesting Waterfowl and Water Birds on Natural Islands in the Dakotas and Montana
- Patterns of Variation in Clutch Sizes in a Guild of Temperate-Nesting Dabbling Ducks
- Population Energetics of Northern Pintails Wintering in the Sacramento Valley, California
- Potential Effects of Anthropogenic Greenhouse Gases on Avian Habitats and Populations in the Northern Great Plains
- Prairie Duck Populations and Predation Management
- Predictable Interregional Movements by Female Northern Pintails During Winter
- The Rare Ones: The Uncommon Floral and Faunal Components of North Dakota
- Recovery Program: Endangered and Threatened Species, 1994
- Red Fox Predation on Breeding Ducks in Midcontinent North America
- Relationships of Habitat Patch Size to Predator Community and Survival of Duck Nests
- A Review of the Problem of Lead Poisoning in Waterfowl
- Snow Goose Population Problem: Part I, II, III
- Spring-staging Ecology of Midcontient Greater White-fronted Geese
- Survival of Adult Female Northern Pintails in Sacramento Valley, California
- Survival of Postfledging Mallards in Northcentral Minnesota
- Survival of Radiomarked Canvasback Ducklings in Northwestern Minnesota
- Temporal Flexibility of Reproduction in Temperate-breeding Dabbling Ducks
- Tundra Swan Habitat Preferences During Migration in North Dakota
- Variation in Body Mass of Wild Canvasback and Redhead Ducklings
- Waterfowl Communities in the Northern Plains
- Weights of Wild Mallard Anas platyrynchos, Gadwall A. strepera, and Blue-winged Teal A. discors During the Breeding Season
- Wetland Preferences of Prairie-nesting Mallards: Implications to Settling Patterns and Population Trends
- Wetland Use, Settling Patterns, and Recruitment in Mallards
- Wood Duck (Aix sponsa)
- Literature Review & Bibliographies
- Regional Overviews
- Resource Management Techniques
- Are Mallards Declining in North America?
- Assessing Breeding Populations of Ducks by Ground Counts
- An Assessment of Predator Barriers and Predator Control to Enhance Duck Nest Success on Peninsulas
- Assessment of a Mallard Model in Minnesota's Prairie Coteau
- Bird Use and Nesting in Conventional, Minimum-tillage, and Organic Cropland
- Building Nest Structures, Feeders, and Photo Blinds for North Dakota Wildlife
- Canvasback Mortality from Illegal Hunting on the Upper Mississippi River
- Collecting and Analyzing Data from Duck Nesting Studies
- Conservation Reserve Program: Benefit for Grassland Birds in the Northern Plains
- Contributions of the Conservation Reserve Program to Populations of Breeding Birds in North Dakota
- Declines of Greater and Lesser Scaup Populations: Issues, Hypotheses, and Research Directions
- Determinants of Mallard and Gadwall Nesting on Constructed Islands in North Dakota
- Do Mini-refuges Supply Wintering Northern Pintails with Important Diurnal Roost Sites? Response to Rave
- Does Presence of Permanent Fresh Water Affect Recruitment in Prairie-Nesting Dabbling Ducks?
- Duck Nest Success on Conservation Reserve Program Land in the Prairie Pothole Region
- Duck Populations as Indicators of Landscape Condition in the Prairie Pothole Region
- Ecology and Management of Islands, Peninsulas and Structures for Nesting Waterfowl
- Effects of Food Supplementation on Depredation of Duck Nests in Upland Habitat
- Effects of Grazing and Burning on Densities and Habitats of Breeding Ducks in North Dakota
- Effects of Harness Transmitters on Behavior and Reproduction of Wild Mallards
- Effects of Roadside Transect Width on Waterfowl and Wetland Estimates
- Effects of a Legal Drain Clean-out on Wetlands and Waterbirds: a Recent Case History
- Environmental Characteristics Associated with the Occurrence of Avian Botulism in Wetlands of a Northern California Refuge
- Estimating Nest Success: When Mayfield Wins
- Evaluation of a Mallard Productivity Model
- Evaluations of Duck Habitat and Estimation of Duck Population Sizes with a Remote-Sensing-Based System
- Factors Limiting Mallard Brood Survival in Prairie Pothole Landscapes
- Forecasting Production of Arctic Nesting Geese by Monitoring Snow Cover with Advanced Very High Resolution Radiometer (AVHRR) Data
- Forum on Wildlife Telemetry Innovations, Evaluations, and Research Needs
- Giant Canada Goose Flocks in the United States
- Habitat Management for Migrating and Wintering Canada Geese: A Moist-Soil Alternative
- Home Made Nest Sites for Mallards
- Homemade Nest Boxes for Cavity-nesting Ducks
- Homemade Nest Sites for Giant Canada Geese
- How Much Habitat Management is Needed to Meet Mallard Production Objectives?
- Impact of the Conservation Reserve Program on Duck Recruitment in the U.S. Prairie Pothole Region
- Influences of Waterfowl Management on Nongame Birds: The North Dakota Experience
- Interpreting Evidence of Depredation of Duck Nests in the Prairie Pothole Region
- Inventory of Wintering Geese with a Multispectral Scanner
- Locating and Managing Peninsulas for Nesting Ducks
- Locating, Constructing, and Managing Islands for Nesting Waterfowl
- Logistic-Exposure Analyses of Nest Survival
- Mallard Brood Survival in Prairie Pothole Landscapes
- Mallard Duckling Growth and Survival in Relation to Aquatic Invertebrates
- Mallard Use of Nesting Islands Depends on Surrounding Upland Cover
- Management of Agricultural Landscapes for the Conservation of Neotropical Migratory Birds
- A Model of the Productivity of the Northern Pintail
- Modified Transmitter Attachment Method for Adult Ducks
- Nest Structures for Ducks and Geese
- Patterns of Variation in Clutch Sizes in a Guild of Temperate-Nesting Dabbling Ducks
- Prairie Ecosystems: Wetland Ecology, Management and Restoration
- Predation on Waterfowl in Arctic Tundra and Prairie Breeding Areas: A Review
- Response of Nesting Ducks to Predator Exclosures and Water Conditions During Drought
- A Retrospective Perspective: Evaluating Population Changes by Repeating Historic Bird Surveys
- Seasonal Predator Removal Relative to Hatch Rate of Duck Nests in Waterfowl Production Areas
- Selected Chapters From Ecology and Management of Breeding Waterfowl
- A Simple Field Candler for Waterfowl Eggs
- Spring-staging Ecology of Waterfowl in Nebraska Then Versus Now
- Survival of Postfledging Mallards in Northcentral Minnesota
- Symposium: Managing Predation to Increase Production of Wetland Birds
- Techniques for Studying Nest Success of Ducks in Upland Habitats in the Prairie Pothole Region
- U.S. Prairie Pothole Joint Venture Implementation Plan Update
- Using Landscape Information Approaches to Increase Duck Recruitment in the Prairie Pothole Region
- Variability in Nest Survival Rates and Implications to Nesting Studies
- Waterfowl Production on the Woodworth Station in South-central North Dakota, 1965-1981
- Waterfowl Responses to the Conservation Reserve Program in the Northern Great Plains
- Wetlands of the United States - Their Extent and Their Value to Waterfowl and Other Wildlife
- Wildlife Habitat Management on the Northern Prairie Landscape
- Wood Duck (Aix sponsa)
- Software Products
- Non-technical Resources
- Status and Trends
- Other/Unclassified