MID-WINTER SURVEY INFO:  (Division of Migratory Bird Management, US Fish and Wildlife Service, unpublished data.)

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TUFFY NOTE:

Quantity values from the Mid-Winter Surveys should be clarified in their limitations.  These numbers should be recognized as only an “Index” and are NOT purported to be the “number of ducks wintering in each state”.  Looking at a state from year to year can be useful, but comparing the absolute values of different states may not be as valid.  Different states devote different degrees of effort and, while each is reasonably consistent from year to year, comparisons among states are to be discouraged beyond recognition of those that are “gaining” and those that are “declining” for a given period.  The reader is also cautioned to note the year-to-year changes in the total MWI.  Planned charts showing the “share” of the MWI in each state may be more useful for some purposes.

DATA TABLES

Total                                       

Black               BW/Cinn_Teal                        Canvasback                 Gadwall          GW_Teal        

Mallard            Pintail                                      Redhead                      Ringneck         Scaup             

Wigeon            Wood Duck   

Other Species                                     

 

Flyway Totals

 

ANNUAL MAPS

1955                            2001                            2002                            2003                           

 

2015 Species MWI:

Atlantic Flyway                      Mississippi Flyway                  Central Flyway                       Pacific Flyway                                                                       

 

State MWI (1955-2015):

Atlantic Flyway

Delaware                     Florida                         Georgia                       Maryland                     Massachusetts            

New_Jersey                 New York                   North Carolina                        Pennsylvania               South Carolina           

Virginia                      

Mississippi Flyway

Central Flyway

Pacific Flyway

 

Species MWI (1955-2015):

Atlantic Flyway                      Mississippi Flyway                  Central Flyway                       Pacific Flyway                                                                       

           

Mallard MWI (1955-2015):

Atlantic Flyway                      Mississippi Flyway                  Central Flyway                       Pacific Flyway