[Mallard X American Black Duck](Anas platyrhynchos X A. rubripes) |
Year | Season | N | S | |
2014 | Winter | 1 | | Present (max. 4) near Canal Park and the Duluth Harbor through most of the winter season. Occurrences of this hybrid have not been regularly included in these seasonal reports in the past, but we plan to do so in the future. |
2015 | Spring | | 1 | Drake found associating with hen American Black Duck 3/23 Scott (Veterans Park, Shakopee) ph. SBn. |
2015 | Winter | 2 | 6 | By far the most reports of this hybrid were from St. Louis (Duluth), with as many as five from Canal Park m.ob. South reports, all of 1–2 individuals, were from Anoka, Dakota, Hennepin, Ramsey, Scott, Wright. |
2016 | Spring | 1 | 1 | Two reports: 3/27 Carver JCy, 4/9 Mille Lacs (5) PEJ. |
2016 | Fall | | 3 | All south 11/20 Hennepin (Long-Meadow Lake) PEJ, 11/25 Ramsey (Vadnais Park) KnM, 11/26 Wabasha (Pool #5) PEJ. |
2016 | Winter | 2 | 4 | Most reports of this hybrid were from St. Louis (Duluth), with up to three found throughout the season. Another north report in late December from Otter Tail. South reports were from Anoka, Dakota, Hennepin, Scott. |
2017 | Fall | | 1 | One south report 11/12 Carver BAb. |
2017 | Winter | 2 | 3 | Most reports of this hybrid were from St. Louis (Duluth) from throughout the season of 1–4 birds m.ob. Other reports (singles) from Hennepin, Otter Tail, Ramsey, Scott. |
2018 | Spring | 1 | 1 | Two reports: 3/15 Hennepin CMB, 5/28 Pennington BAb. |
2018 | Summer | | 1 | Reported 6/8 Stearns (Albany W.T.P.) PCC. |
2018 | Fall | | 2 | All south 10/14–21 Ramsey BAb, IVa, 10/24–11/23 Wabasha (Pool #5) PEJ. |
2018 | Winter | 1 | 3 | Reported from Dakota, Hennepin, Scott, and St. Louis, with a high count 12/11 St. Louis (10, Duluth) KRE. South reports were singles. |
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  | Hybrid Species. |