Iowa Waterfowl Hunter Preference Survey
A survey of waterfowl hunters was conducted in Iowa in 2011 to determine how hunters preferred the duck and goose seasons be structured for the next 5 years and when they preferred to hunt ducks and geese.  The resulting information was used to formulate a season that is the best fit for all of Iowa’s waterfowlers.  Even with 60 days for ducks and 90 days for geese, the resulting season is a compromise amongst all of the varied and competing styles of waterfowling, both traditional and modern. 2011 Waterfowl Hunter Survey Report

On-line Identification Guides (U.S.G.S. -- Northern Prairie Science Center)
Ducks at a Distance: A Waterfowl Identification Guide (U.S.G.S.)
Species, Age and Sex Identification of Ducks using Wing Plumage (U.S.G.S.)
Duck Identification Guide for Hunters (U.S.G.S.)

Duck Management:
Habitat Acquisition Statistics: Prairie Pothole Joint Venture
Nest Structures for Ducks and Geese (Northern Prairie Wildlife Research Center)
 
Wood Duck Nest Boxes
A simple wood duck box design.  Fill with several inches of course wood shavings (not sawdust) and place on pipes over water.  Erecting the boxes over land or in trees invites predators and extra measures must be taken to predator proof your nest box.

Waterfowl Hunting Zones:
For the purpose of duck and goose hunting, the state is divided into north and south zones by a line beginning on the South Dakota-Iowa border at Interstate 29, southeast to Woodbury County Road D38, east to Woodbury County Road K45, southeast to State Highway 175, east to State Highway 37, southeast to State Highway 183, northeast to State Highway 141, east to U.S. Highway 30, and along U.S. Highway 30 to the Iowa-Illinois border.