| Redhead(Aythya americana) |
| - - - Spring - - - |
|---|
| Number | Date | Location | Observer | Comment |
|---|
| 1,478 | 2013-04-29 | St. Louis County | Svingen | Total for 4 and 1/2 hour survey at Park Point, Duluth. Record high count of 7,61 |
| 1,000 | 2015-04-22 | Crow Wing County, Mille Lacs--Pike Point Wayside,46.28396,-93.81692 | Maust | |
| 975 | 2020-03-24 | Wabasha County, Pool #5 | Jantscher | |
| 950 | 2013-04-20 | Freeborn County | Jantscher | |
| 845 | 2012-03-25 | St. Louis County | Svingen | Total for Duluth Harbor (Hearding Island to Park Point Recreation Area). |
| 529 | 2013-04-28 | St. Louis County, Park Point--33rd St,46.7492688,-92.0701764 | Bardon | |
| 355 | 2008-04-22 | St. Louis County | Svingen | Total for Park Point, Duluth. |
| 271 | 2009-03-07 | Jackson County | Jantscher | |
| 159 | 2011-04-24 | Ramsey County | Collins | Goose Lake |
| 150 | 2010-03-23 | Faribault County | DeRubeis | flooded agricultural field |
| - - - Summer - - - |
|---|
| Number | Date | Location | Observer | Comment |
|---|
| 250 | 2021-06-23 | Pennington County, Thief River Falls sewage lagoons,48.1073200,-96.2316100 | Joppru | Estimate based on counting by tens. |
| 215 | 2016-07-03 | Faribault County, Wells WTP | Jantscher | |
| 193 | 2017-07-02 | Faribault County | Jantscher | |
| 150 | 1977-07-09 | Meeker County, Strout | Janssen | |
| 120 | 2017-07-24 | Grant County, North Ottawa Impoundment,45.9856315,-96.2471008 | Deutsch | Multiple large flocks. Estimated by 10s. |
| 115 | 2018-07-05 | Faribault County | Jantscher | |
| 102 | 2015-07-03 | Faribault County | Jantscher | |
| 84 | 2013-06-16 | Freeborn County | Jantscher | |
| 78 | 2014-07-05 | Lac qui Parle County, Salt Lake,44.9645052,-96.4437363 | Larson | |
| 51 | 1967-07-14 | Hennepin County, Grass Lake, Minneapolis | Janssen | |
| 36 | 1968-07-12 | Hennepin County, Grass Lake, Minneapolis | Janssen | |
| 28 | 2009-06-20 | Nicollet County | Janssen | on Nicollet Sewage pond |
| - - - Fall - - - |
|---|
| Number | Date | Location | Observer | Comment |
|---|
| 6,270 | 2011-10-27 | Houston County | Service | Pool 8, Upper Mississippi River N.W.F.R. Includes birds in Wisconsin. |
| 1,250 | 2019-10-08 | Big Stone County, Big Stone Lake/Riverside Park/ Ortonville,45.3036291,-96.44937 | Marengo | |
| 1,000 | 2024-09-26 | Douglas County, Lake Christina (Douglas Co.),46.0967222,-95.7418282 | Bardon | Estimated number among large rafts of coots and ducks |
| 800 | 2023-10-25 | Kandiyohi County, Lake Lillian,44.9643327,-94.8759402 | Abendroth | |
| 709 | 2023-11-11 | Big Stone County, Big Stone Lake/Riverside Park/ Ortonville,45.3036291,-96.44937 | Pierzina | The Redheads, Scaup and Ring-necks were all in one large flock. They again coop |
| 535 | 2017-10-09 | Douglas County, Clifford LK Rd,45.8567085,-95.1663637 | Kraemer | most were seen in Clifford Lake - counted carefully by 25s |
| 502 | 2010-10-23 | Meeker County, Lake Washington | Maercklein | |
| 500 | 2016-10-31 | Big Stone County, Riverside Park - Ortonville,45.3042387,-96.4503156 | MacAulay | |
| 490 | 2011-11-18 | Houston County, Houston | Potthoff | |
| 400 | 2008-11-01 | Grant County | Guynn | Island Lake, adj 240th St 0.5 miles west of MN 54 |
| 300 | 2014-11-14 | Winona County, Prairie Island Spillway,44.0798782,-91.6827965 | Nienhaus | |
| 250 | 2011-11-03 | Scott County, New Prague | Janssen | |
| 240 | 2010-10-24 | Carver County | Kieser | Lake Waconia |
| - - - Winter - - - |
|---|
| Number | Date | Location | Observer | Comment |
|---|
| 100 | 2024-02-27 | Lac qui Parle County, Lac Qui Parle--Twin Bridges PWA (LQP Co.),45.1562891,-96.0 | Schwegman | |
| 78 | 2017-02-21 | Rice County, Wells Lake | Jantscher | |
| 75 | 2024-02-26 | Redwood County, Westline WMA,44.4185495,-95.4757872 | Spencer | |
| 67 | 2024-01-11 | Wabasha County, Pool 5 | Jantscher | |
| 60 | 2024-02-29 | Lincoln County, Lake Stay,44.3904943,-96.170969 | Spencer | |
| 50 | 2017-02-19 | Lyon County, Lady Slipper Lake,44.5732267,-95.6220217 | Wee | |
| 45 | 2018-02-27 | Nobles County | Jantscher | Early Migrants |
| 35 | 2012-12-16 | Wabasha County | Jantscher | |
| 30 | 2015-12-08 | Hennepin County, medicine lake,45.0046222,-93.4157181 | Lochner | m & f |
| 16 | 2009-12-06 | Ramsey County, Vadnais Lake | Wilson | |
| 15 | 2002-02-23 | Kandiyohi County | Floren | lake lillian |
| |
| Breeds mostly west and central. Migrant throughout. |
