| Brown-headed Cowbird(Molothrus ater) |
| - - - Spring - - - |
|---|
| Number | Date | Location | Observer | Comment |
|---|
| 500 | 2015-03-21 | Faribault County, Charlotte Hynes WMA,43.7575164,-94.0812114 | Nienhaus | Numbers estimated from percentage of birds in initial field of view, as explaine |
| 500 | 2011-04-23 | Cass County | Yerger | |
| 300 | 2009-04-27 | Benton County, Mayhew Lake | Blomberg | FOY-boat access area |
| 300 | 2014-04-13 | Faribault County, Arndt's Slough,43.7588827,-94.1072559 | Nienhaus | |
| 280 | 2018-05-05 | Watonwan County, Sulem Lake (Watonwan Co.),43.9285918,-94.8348427 | Akers | |
| 275 | 2014-04-14 | Lyon County, Cottonwood,44.6080834,-95.6717777 | Wee | |
| 150 | 2012-03-31 | Dakota County | Fall | Great Western Industrial Park; foraging flock, mostly (> 90%) males. |
| 135 | 2011-04-21 | Dakota County, Douglas Twp west of Cty Park | Smith | |
| 120 | 2009-04-19 | Wright County | Kieser | Pelican Lake WPA, freshly burned |
| 112 | 2000-04-08 | Lyon County | Schroeder | |
| 110 | 2011-05-04 | Goodhue County, PIIC-Urban | Miller | |
| 100 | 2005-05-14 | Big Stone County | Joppru | |
| - - - Summer - - - |
|---|
| Number | Date | Location | Observer | Comment |
|---|
| 700 | 2016-07-27 | Lyon County, 260th Ave Grasslands,44.605959,-95.7650156 | Wee | Many perched om the power lines running alongside the grassland and nearly 350-4 |
| 500 | 2019-07-13 | Dakota County, 180th St. Marsh (Marshall's Marsh),44.68822,-92.9659032 | Hosch | 86°F Wind calm Partly cloudy Habitat: Fairly large marsh with woodland edges |
| 355 | 1998-07-10 | Hennepin County, International Airport | Tustison | Cargo Rd. - 351 males + 4 female/imms. |
| 300 | 2018-07-31 | Stevens County, Stevens Shorebirds,45.717462,-96.114403 | Sundvall | Huge flock |
| 200 | 2017-07-10 | Lyon County, Lyon/Redwood Rd,44.5172555,-95.5967317 | Wee | |
| 100 | 1994-06-11 | Dakota County, Hwy 316 & Co. Rd. 91 | Tustison | all males -1st fall flocking |
| 100 | 1999-06-30 | Hennepin County, International Airport | Tustison | males - est. |
| 80 | 2008-07-31 | Rock County | Hertzel | |
| 70 | 1998-07-03 | Hennepin County, International Airport | Tustison | one flock all were males |
| - - - Fall - - - |
|---|
| Number | Date | Location | Observer | Comment |
|---|
| 600 | 2021-10-12 | Dakota County, 140th St. Marsh,44.7465808,-93.0168629 | Smith | conservative estimate based on the percentage of the birds in the flocks of Redw |
| 500 | 2022-09-22 | Murray County, 2441–2471 31st St, Fulda US-MN 43.89153, -95.56856,43.8915340,-95 | Brown | Huge flock mixed with starlings |
| 380 | 1999-10-11 | Jackson County | Schroeder | |
| 313 | 2018-08-11 | Lyon County, 3230 County Road 11, Vesta US-MN (44.5157,-95.5987),44.515711,-95.5 | Wee | Actual count of first year birds, Adult Males and females, located at the edge o |
| 301 | 2020-10-06 | Watonwan County, 320th St - south of Madelia,44.0215146,-94.4137981 | Karcz | Conservative estimate |
| 300 | 2017-08-20 | Grant County, North Ottawa Impoundment,45.9856315,-96.2471008 | Nienhaus | See notes for YHBL. |
| 220 | 2016-10-29 | Dodge County, US-MN-Ripley-13200 650th St - 44.0084x-92.9856,44.008423,-92.98558 | Smith | |
| 200 | 2015-08-27 | Cottonwood County, Wolf Lake WPA,43.8582349,-95.0879788 | Emerson | |
| 200 | 2018-08-05 | Redwood County, 320th street,44.496187,-94.892819 | Harper | |
| 200 | 2011-08-12 | Martin County | Janssen | |
| 150 | 2017-10-11 | Rock County, Moo cow,43.747333,-96.296499 | MacAulay | |
| 150 | 2002-10-18 | Traverse County, Co. Road 2 | Janssen | |
| 100 | 2008-09-19 | Dakota County | Smith | |
| 100 | 2013-10-02 | Dakota County, Great Western Industrial Park,44.5374794,-93.0069494 | Holden | |
| 100 | 2014-08-16 | Stevens County, Pasture Jct CoRd 20 & 71,45.7166172,-96.1149502 | Hoekstra | |
| 88 | 1998-09-29 | Lyon County | Schroeder | |
| - - - Winter - - - |
|---|
| Number | Date | Location | Observer | Comment |
|---|
| 163 | 2015-12-19 | Olmsted County | Vrieze | For Rochester CBC. Large flock observed in tree. Count done by counting birds in |
| 120 | 2012-02-29 | Winona County, Prairie Island Road | Nyhus | huge flock spread out over a few trees |
| 100 | 2017-02-25 | Lyon County, Amiret WMA,44.359082,-95.6509037 | Wee | A few can be seen here, hard to photograph with the flock actively foraging. |
| 86 | 2018-12-22 | Goodhue County, 28071 370th St, Goodhue US-MN (44.4120,-92.4697),44.412026,-92.4 | Hoekstra | |
| 74 | 2010-12-31 | Dakota County | Smith | Seen at a cattle feedlot along Ravenna Trail, in Ravenna Twp. Hastings CBC. |
| 56 | 2000-02-05 | Dakota County, Hwy. 55 | Tustison | horse farm |
| 50 | 2000-02-26 | Dakota County, Hwy. 55 | Tustison | horse farm - est. |
| 38 | 2008-01-19 | Le Sueur County | Dunlap | |
| 30 | 1960-01-09 | Dakota County, Etter | Janssen | |
| 23 | 2001-12-17 | Dakota County, Buffalo Farm Hwy 55 | Tustison | |
| 21 | 2008-12-20 | Hennepin County | Claus | CBC-Bloomington 2008; 19 @ feeder-5917 S 26th Ave,Richfield, 2 @ another feeder |
| |
| Breeds throughout. |
