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Mallard X American Black Duck - Map (detail) 

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 Nesting Species  Permanent Resident  Migrant/Summer Visitor  Former Range
 Winter Visitor  Casual Species  Accidental Species
Mallard X American Black Duck Mallard X American Black Duck Mallard X American Black Duck Mallard X American Black Duck Mallard X American Black Duck Mallard X American Black Duck Mallard X American Black Duck
Mallard X American Black Duck
Normal Distribution
 North (2 observations)
Counties(2): Grant, St. Louis

Data: 10/27 Grant PCC (1), 10/30 St. Louis AiS (1)

 South (5 observations)

Counties(3): Ramsey, Scott, Wright.

Data: 8/2 Wright ToL, 10/30 Ramsey DnS (1), 11/1 Ramsey DnS (1), 11/1 Ramsey DFe (1), 11/15 Scott TPu (1)