Seasonal Report Archive for The Loon - Bitterns, Herons, Egrets, Night-Herons Occurrence
This is the 1930 to present seasonal report archive for
The Loon, journal of the Minnesota Ornithologists' Union.
The last 2 years are available to MOU members.
Seasons
Families
Whistling-Ducks, Geese, Swans, Ducks
New World Quail
Partridge, Pheasants, Grouse, Turkeys
Grebes
Pigeons, Doves
Cuckoos
Nightjars
Swifts
Hummingbirds
Rails, Gallinules, Coots
Limpkin
Cranes
Stilts, Avocets
Plovers
Sandpipers
Jaegers
Alcids
Gulls, Terns
Loons
Shearwaters and Petrels
Storks
Frigatebirds
Boobies and Gannets
Cormorants
Pelicans
Bitterns, Herons, Egrets, Night-Herons
Ibises
New World Vultures
Osprey
Kites, Accipiters, Hawks, Eagles
Barn Owls
Screech-Owls, Owls
Kingfishers
Woodpeckers
Caracaras, Falcons
Flycatchers
Vireos
Shrikes
Jays, Nutcrackers, Magpies, Crows
Chickadees, Titmice
Larks
Martins, Swallows
Kinglets
Waxwings
Silky-flycatchers
Nuthatches
Creepers
Gnatcatchers
Wrens
Thrashers, Mockingbirds
Starlings
Dippers
Thrushes
Old World Flycatchers
Old World Sparrows
Pipits
Finches
Longspurs and Snow Buntings
Towhees, Sparrows
Yellow-breasted Chat
Blackbirds, Orioles
Warblers
Tanagers, Cardinals, Grosbeaks

Seasons
Species: Bitterns, Herons, Egrets, Night-Herons
Least Bittern
American Bittern
Little Blue Heron
Tricolored Heron
Snowy Egret
Yellow-crowned Night Heron
Black-crowned Night Heron
Green Heron
Great Egret
Western Cattle-Egret
Great Blue Heron

Least Bittern(Botaurus exilis)
YearSeasonNS
1930SummerEarliest nest found at Crystal Lake (Marius Morse), May¥17th, containing a single egg (this nest) held five eggs on June 2nd). The latest, found by Alden Risser, at St. Paul on June 18th, with four fresh eggs.
1932SummerThe only nest of this eccentric bird is reported froo Swan Lake, June 16th (Dobie).
1933Summer The only nest of this nimble little acrcbat of the reeds was found by Hiemonz, ncar St. Cloud. It hold 4 fresh eggs on Juno 5.
1934Summer -On May 25th, at Little Rock Lnke, Morrison County, Hiomonz found o. nest of this slender, silent narsh....dwelle!', contni:n:ing 3 fresh eggs. On the 7th of June the sane observer and his shnrp..~~yed and diligent co-worker, Jack Hanson, visited the same le.ke and.fou..l'ld another nest of this species with the same nunbor of fresh eggs. 1
1935Summer This elusive little slough resident hid its nests from all but 2 observers this year. Breckenridge with his water skiis located 2 nests, 2 with 2 eggs, and 2 with 4 og~s, on Juno 21st. For July 7th he reports 3 nore vD.th 4, 4, and 5 eggs in each. Evnns and Upson, the Blub's nee bog-trotters, take the record fol.' number of Least Bittern nests in one day. They spcmt a merry July 4th finding 8 nests of this species, 2 with young,. ·. and 6 with eggs. ' I Five members sent in data on this common species; Dobie of Park Rapids is earliest with 12 eggs for May 6th. Breckenridge saw 7 downy.young on May 28th, 9 young on 1'4ay.31st, 1 and ; young on June 13th, and 9 young on July 1st. Sterling.. -·::· ·· · . Brackett came across a nest with 7 eggs along the shore of a bay of Itasca Lake on May 3oth.-Prosser saw several small young at :New Brighton June 7th, and MariUs Morse saw 2 :· :·: families on a small marsh in the st. CroiX Forest, June 24th.
1936Summer Robert Upson reports seven nests of this diminutive bittern as proof of their breeding L~ nunbers in the Twin City area. Two nests contained two eggs each, one nest hold throe eggs; one nest had four eggs, and tho seventh housed five eggs. The first nest, ~mich contained eleven egGs, was discovered by E. D. Swedenborg on Mny 9th; the following dny n nest containing twelve eggs was found by George Rysg~ard. Mnrius Morse's buntings disclosed a nest of ten eggs in n nest nt Cloquet~ Milton Thompson found a nest of ton eggs on :Hay 26th near Eveleth.
1937SummerA nest found by R. Upson on May 30 contained two eggs; a second nest found by Upson on June 25 held five eggs. Both were found at Min­neapolis.
1938SummerFour downy young of this species were found on June 30 at Minneapolis by Milton Thompson and Bob Upson.
1940SummerDuring the week beginning June 3, Mr. DuBois found 3 nests of this odd looking bird, con­taining 5, 4 and 6 eggs respectively. The nests were found in the vicinity of Lake Minnetonka.
1943SummerMpls., June 3, neS't being built; July 21, young well grown. Francis S. Davidson.
1961Springquite often elusive, were seen on 20 May at Swan Lake, in Nicollet County, by Brother Theodore, R. Janssen and R. Glassel.
1961SummerSeen by Avifaunal Club members on 24 June and 8 July at Swan Lake. DUCKS, GEESE AND SWANS:
1961FallLast report was 1 Oct. at Heron Lake, Jackson County, by Avifaunal Club members.
1962SpringMay 27, Swan Lake, Nicollet Co., Avifaunal Club.
1962FallSept. 8, Swan Lake, Nicollet Co., 2 seen, Avifaunal Club.
1963SpringMay 17, Artichoke Lake, Big Stone County, R. Grant; May 20, Winona, Jean Mcintosh; June 8, Swan Lake, Nicollet County, adult male, Avifaunal Club.
1963Falllatest Nov. 5, Ramsey Co., Mpls. Audubon Society, exceptionally late.
1964Summerbreeding in Wright Co, GS, one seen 7-4 Anoka Co, RBJ.
1965SpringThere are rarely many reports of this secretive little heron. 5-8 Hennepin Co, DB, RBJ; 5-31 Dakota-Scott Co "ine, JRR.
1965Fallonly report, 9-11 Carver Co, 1, RBJ.
1966Spring.5-14 Washington Co, WWL; only report.
1966Summer6-7 Rice Co, OAR; 6-8 Washington Co, WWL; 7-23 Nicollet Co, 12, RG; 8-11 Twin Lakes, Kittson Co, 2, PE (northernmost state record); more reports of this species than we've had in some time. THE LOON
1966Fall8-7 (FN / MAS) and 8-9 (VL) Hennepin Co.; 8-13 Nicollet Co., EHH; 8-24 Crow Wing Co., JAH.
1967Spring5-1 Itasca Co., JAM; 5-26 Ramsey Co., FN/ MAS.
1967Summerreported from Nobles, Houston, Wright, Beltrami (JAM), Washington Co's.
1967Fall 8-10 Carver Co., FN/ MAS; 8-12 Nicollet Co., DB; 8-20 Wright Co., DB; 8-29 Nicollet Co., DB.
1968Spring5-22 Nobles Co., 1, HSH; only report.
1968Summer nested in Wright, Hubbard (TCD) Co's; also reported from Houston Co.
1968Fall8-25 Wright 4 ETS; 9/6 Cook (Schroeder) Mrs. Marion Olsen; 10-12 Nicollet (Middle Lake) DB fide A. Bolduc.
1969Spring5-6 Winona Co., BT; Duluth, MMC; 5-30 Brown Co., DMF.
1969Summerreported from Nicollet, Sibley, Wabasha, Wright, and Goodhue Co's. Slight increase in reports this year.
1969Fall8-1 Nicollet 2 DB.
1970Spring5-13 Rice OR; 5-18 Marshall AR; only reports.
1970Summerreported from Carver, Hennepin, Nicollet, Winona, Wright, and MARSHALL Co's.
1970Fall3 reports 8-16 Carver KH; 9-5 Nicollet DB.
1971Spring5-12 Ramsey DM; 5-25 Hennepin DB, KJG; only reports!
1971Summermore reports than usual from Hennepin. Crow Wing, Nicollet (on 7-4 BDC counted 10), Pope, Marshall, Carver, Wright, Sherburne, Rice and vVabasha.
1971Fallmore rP.oorts th"n usual south !1-?t Hennepin; !1·25 Lvon; 10-3 Pope; late north 8-28 Aitkin; 9-16 Marshall.
1972Summerseen in Wright, Kandiyohi, Bil! Ston<'. Nicollet, Carver, Winona, Houston, CROW WING (6-18 Deerwood TS).
1973Summer Seen in Lincoln, Jackson, Nicollet, Wright, Sherburne, St. Louis (6-23 St. Louis River JCG).
1973Fall Only three reports (seven last year), 8-5 Wright (4) (BAH); 8-16 Nicollet (2) (GN); 9-9 Houston (2) (FL).
1974Spring 5-4 Lyon DR-only report.
1974Summer Nested in Stearns and Wright; also reported from Redwood, Pipestone, Nicollet, Dakota, Hennepin, Ramsey.
1974Fall All reports 8-18 Rice OR; 8-25 Wright BII; 8-31 Hennepin PZ; 9-3 Dakota (3) MW; 9-5 Marshall AR. Flamingo 9-25 Marshall AR -an escape from zoo in Winnipeg.
1975Spring 4 reports: 5-17 and 5-31 Hennepin CLH; 5-17 Otter Tail (1) GLO; 5-28 Stearns NMH.
1975Summer Reported from Marshall, Aitkin, Pope, Big Stone, Wright, Rock, Hennepin and Ramsey.
1975Fallonly reports 8-19, 8· 20 Hennepin RJ, KE, PE; and 8-2, 8-8 Marshall SV.
1976Spring 4 reports: 5-17 Dakota JG; 5-21 to 5-23 Freeborn DG; 5-23 Yellow Medicine (unusual southwest) GO; 5-29 Marshall (Agassiz NWR) LH.
1976Summermore reports than usual; reported from Marshall, Ottertail, Duluth (7-14, TD), Stearns, Kandiyohi, Wright, Hennepin, Washington, Rice, Houston and Cottonwood.
1976Fall Late north 7-14 Duluth, 9-26 Otter Tail GO; late south 9-12 Hennepin, 9-14 Grant.
1977Spring 5-7 Anoka DAS; 5-25 Polk RJ.
1977Summer Reported from 14 counties north to Roseau (5 on 6-13, KE) with a peak of 8 on 7-27 in Hennepin Co. (VL); much more common than usual.
1977Fall Late north 8-4 to 8-17 Duluth (GN), 8-10 Otter Tail. (GO).
1978Spring Early north 5-15 Otter Tail GO and Marshall SV.
1978Summer Breeding reported from Stearns, Watonwan; also seen in Houston, Wabasha, Lac qui Parle, Pope. Grant, Otter Tail, Marshall, Roseau (Roseau River) and St. Louis (Duluth, GN).
1978Fall Summer resident Martin EB, August Marshall (10) ANWR, 8-3 Otter Tail GO, 8-4 to 9-10 Lac qui Parle CMB, 8-30 Hennepin VL.
1979Spring 5-11 Lac qui Parle CMB, Ramsey BDC, 5-13 Martin EB, 5-14 Le Sueur JM, 5-18 Beltrami ANWR, 5-26 Anoka BH and Hennepin RE, 5-31 St. Louis TS.
1979Summer Seen in Anoka, Hennepin, Wright, McLeod, Nicollet, Kandiyohi, Lac qui Parle, Otter Tail, Marshall (Agassiz NWR), St. Louis (Duluth harbor, G. Niemi).
1979Fall 8-2 Lac qui Parle CMB and Otter Tail GMO, 8-5 Anoka KL, 8-11, 12 Washington REA, 8-24 Nicollet JCF, 9-9 Ramsey DGW; only reports.
1980Spring 5-17 Olmsted JSD, JF, 5-22 Marshall ANWR, 5-23 Nicollet JCF, 5-24 Lac qui Parle JS, 5-29 Grant GMO, 5-31 Swift BSG.
1980Summer Reported from the western regions (north to Agassiz NWR), the Central Region, plus Nicollet and Anoka.
1980Fall 8-6 Kandiyohi RH, 9-5 Nicollet JCF, 10-8 Anoka RBA.
1981Spring 5-1 Otter Tail GMO, 5-10 Washington DS, 5-16 Dakota KG.
1981Summer Very few reports-seen in Grant, Kandiyohi, Rock, Nicollet, Anoka.
1981Fall 8-12 Freeborn RG (6), 8-25 Nicollet MF (8), 9-25 Nicollet JCF.
1982Spring 5-10 Olmsted JEB, 5-15 Martin EB/ K, 5-20 Blue Earth MF, 5-27 Goodhue BL.
1982Summer Breeding data from Marshall, Pope. Seen in Washington, Scott, Nicollet, Freeborn.
1982Fall 8/3 Marshall JM, 8/20 Kandiyohi JS, 9/4 Otter Tail DS, 9/9 Nicollet JCF.
1983Spring 5/13 Rice KJ, 5/16 Marshall ANWR, 5/21 Faribault KL, 5/24 Hennepin VL.
1983Summer Nested at Agassiz NWR, Marshall Co. (4 nests). Seen in Pope, Benton, Sherburne, Anoka, Hennepin, Ramsey, Washington, Steele, Nicollet, Jackson (Heron Lake, JS).
1983Fall 8/3 Clearwater AB, 8/16 Hennepin MS, 8/27 Hennepin VL, I011 Nicollet JCF.
1984Spring 5/4 Otter Tail GMO, 5/12 Freeborn RJ, 5/18 Marshall ANWR, 5/24 Blue Earth MF, 5/26 Olmsted RE.
1984Summernested in Marshall and Pope; also seen in 12 other counties including Duluth (6/4-9, 2 birds -KE).
1984Fall 8/25 Hennepin TT, 9/15 Redwood RJ, 9/22 Goodhue, BL, DZ.
1985Spring 5/11 Hennepin DZ, 5/16 Mower RRK, 5/22 Marshall ANWR, 5/30 Clearwater AB.
1985Summer Nested in Polk, Nicollet (PB). Also seen in Marshall, Pennington, Mahnomen, Becker, Pope, Hennepin, Blue Earth.
1985Fall 8/17 Big Stone BL.
1986Spring 5/13 Marshall ANWR, 5/14 Hennepin AB, 5/22 Blue Earth MF, 5/28 Jackson NH, 5/31 Houston KE; only reports.
1986Summer Nested in Agassiz NWR. Also seen in Anoka, Hennepin, Nicollet, Brown, Jackson, Lyon, Yellow Medicine.
1986Fall Reported 8/2 Hennepin SC, TTu, 9/1 Freeborn NHo, 9/19 Nicollet JF
1987Spring 5/23 Sherburne AB, 5/30 Douglas RG, RJ; only reports.
1987Summer Seen in Agassiz NWR, Grant, Pope, Hennepin, Freeborn, Houston. Third consecutive year of declining number of sightings, bringing it near midpoint of the six to seven year population cycle it has followed for at least the last 18 years.
1987Fall Reported 8/8 Brown RJ, 8/16 Hennepin TT, 9/7 Stevens EL.
1988Spring 5/27 Marshall KE.
1988Summer Seen in Marshall, Red Lake, Anoka, Redwood, Hennepin, Dakota. Relatively few sightings, similar to last year.
1988Fall 9/24 Dakota DZ, 10/8 Aitkin WN; only reports.
1989Spring Early south 5/19 Hennepin AB, 5/27 Wabasha AP, 5/31 Cottonwood ED; only north report: 5/28 St. Louis fide KE.
1989Summer Reports from four east central counties plus Sherburne, Norman, Wilkin, St. Louis, Houston.
1990Spring Only report: 5/11 Rock PG.
1990Summer Seen in Renville, Sherburne, Anoka, Hennepin, Carver, Goodhue, Houston.
1990Fall Reported 8/23 and 8/30 Hennepin SC, 9/15 Anoka KB.
1991Spring Reported 5/11 Hennepin KR, 5/18 Kittson KB, 5/23 Roseau KB, 5/24 Hennepin OJ.
1991Summer Reported in Roseau, Clay, Becker, Clearwater, Big Stone, Lac qui Parle, Sherburne, Hennepin, Houston.
1991Fall Reported 8/4 Traverse AB, DB, 8/25 Jackson TEB, KE, 9/17 Clearwater KB.
1992Spring Early south 5/16 Anoka RH, 5/19 Cottonwood ED, 5/25 Goodhue TEB; north 5/25 Becker MO.
1992Summer Reported in Lake of the Woods, Marshall, Polk, Renville, Meeker, Wright, Sherburne, Hennepin, Ramsey, Houston.
1992Fall Reported 8/26 Rice TB, 9/1 Rice FKS.
1993Spring Only reports 5/16, 20 Winona KB, CS, 5/22 Anoka RH.
1993Summer Observed in Pennington, Anoka, Hennepin, Cottonwood, Watonwan, Faribault, Winona.
1993Fall Reported 10/2 Sibley RG, EJ.
1994Spring Reported 5/14 Chisago RH, 5/22 Winona CS, 5/26 Lac qui Parle FE, 5/29 Marshall MH.
1994Summer Probable breeding in Hennepin; also seen in Roseau, Marshall, Otter Tail, Lac qui Parle, Sherburne, Anoka.
1994Fall Reported from Hennepin 8/4 CF and 9/2 SC.
1995Spring Only reports 5/25 Anoka KB and 5/31 Kandiyohi RF/JC.
1995Summer Seen in Polk, Mahnomen, Clearwater, Cass, Anoka, Hennepin.
1995Fall Only one report: 8/19 Lyon KE et al.
1996Spring All reports: 5/17 Duluth DBe, 5/19 Winona CS, HT, 5/25–26 Houston mob, 5/25 Kittson PS, 5/28 Cottonwood ED.
1996Summer Reported in Becker, Chippewa, Waton-wan, Hennepin, Dakota, Steele and Wabasha.
1996Fall Only reports: 8/18 Hennepin DN, 8/31 Ramsey AH.
1997Spring All reports: 5/10 Lincoln PS and Lyon RgS.
1997Summer Observed in Marshall, Pennington, St. Louis, Cass, Freeborn, Houston.
1997Fall Only report: 8/24 Itasca (Plug Hat Point on Lake Winnibigoshish) AH.
1998Spring Reported from three counties south and four counties north. Early north 5/15 Becker AH, PS.
1998Summer Fewest reports in 18+ years. Probable nesting in Hennepin; also observed in Kittson, Clay.
1998Fall No reports.
1999Spring Reported from three locations in Hennepin, plus Jackson, Kandiyohi, Freeborn, Wabasha. One was earlier than usual 5/9 Hennepin (Wood L.) AH, PH, PS, and two were calling from a marsh north of Spirit L., Jackson Co. during the late afternoon on 5/13 (PS). No north reports.
1999Summer Few reports: seen in Kandiyohi, Meeker, Hennepin, Anoka.
1999Fall No reports north. All south reports were in August: Freeborn, Hennepin, Lac qui Parle, Olmsted, and Stearns. Last reported 8/22 from two counties.
2000Spring All reports were in May and none were in the north. Early south 5/9 Hennepin SC, 5/11 Houston AH, PS; also seen in Kandiyohi, Meeker, Dakota.
2000Summer Reported in Marshall, Cass, Wright, Hennepin, Anoka, Nicollet, Steele, Wabasha.
2000Fall Observed 8/7 Hennepin (Wood L.) PEB, 9/11 Freeborn AEB.
2001Spring Reported from only three south counties beginning 5/19 Meeker DMF; also seen in Freeborn and Nicollet. All north reports: 5/20 Becker (3 at TNWR) mob, (no date) Kittson HHD.
2001Summer Almost double the usual number of reports; seen in Roseau, Marshall, Becker, Wilkin, Benton, Sherburne, Anoka, Wright, Hennepin, Dakota, Nicollet, Murray, Cottonwood, Freeborn. [Corrected]
2001Fall Only report: 8/17 Lac qui Parle (2) BEO.
2002Spring Early south 5/11 Murray SWe, 5/18 Meeker DMF; also reported in Cottonwood, Kandiyohi, and Steele. Only north report: 5/26 Roseau AXH, PHS.
2002Summer Many reports. Seen in 13 counties as far north as Otter Tail, Stearns, Sherburne, Anoka.
2002Fall All north reports: 8/15 Becker (Detroit Lakes) fide JMJ, 9/1 Polk (Maple L.) EEF. Reported south in early August from Big Stone, Kandiyohi, Yellow Medicine.
2003Spring First reported south 5/6 Hennepin OLJ; also observed in Dakota, Freeborn, and Nicollet. All north reports: 5/12 (second earliest date) Clay RHO, late May in Marshall fide JMJ.
2003Summer Many reports, similar to previous two years. Seen in 14 counties in all regions except Northeast, Southwest, and Southeast.
2003Fall All reports: 8/5 Hennepin (2 at Old Cedar Ave.) m.obs., 8/17 Wadena PJB, 8/19 Lac qui Parle JJS, Otter Tail (no date) EJE.
2004Spring All reports: 5/4 Aitkin (2 at Rice Lake N.W.R.) WEN, 5/13–18 Hennepin (Old Cedar Ave. Bridge) JEP, BWF, 5/18 Scott (Belle Plaine W.T.P.) BWF, 5/22 Lac qui Parle (Big Stone N.W.R.) BJU, 5/30 Brown PRH.
2004Summer Reported from Norman, Clay, Otter Tail, Wadena, Todd, Grant, and eight south counties.
2004Fall All reports: 8/9–11 Hennepin (Old Cedar Ave.) m.ob., 8/18 Winona CAS, 8/26 Lyon RJS.
2005Spring All reports: 5/20 Waseca JPS, 5/21 Meeker (Minnesota L.) DMF, 5/23 Polk (Glacial Ridge N.W.R.) RPR, 5/28 Marshall JJS, WCM, 5/29 Houston PHS.
2005Summer Record high number of reports: observed in 18 counties in all regions except North-central, Northeast, Southeast. First nesting record for Yellow Medicine BJU.
2005Fall All reports: 8/7–13 Lac qui Parle (4 birds in three locations) BJU, 8/22 Wilkin JEB, RBJ, 9/1 Hubbard (L. Hattie Twp.) BJU.
2006Spring All south reports: 5/5+ Dakota (max. 2) m.ob., 5/10 Houston (Mound Prairie Marsh) DBz, 5/19 Waseca DAB, JPS, 5/21 Lac qui Parle (Hamline Twp.) BJU, 5/27 Wright (2 at Clearwater L.) KTP, 5/29 Lac qui Parle (Perry Twp.) BJU. All north reports: 5/17 Beltrami RBJ, 5/28 Wadena PJB, 5/29 Becker (near Audubon) RBW, 5/31 Kittson LW.
2006Summer Found in 28 counties throughout state except Northeast.
2006Fall All reports: 8/3–9/2 Scott (Murphy-Hanrehan P.R.) TAN, m.ob., 8/4 Sherburne PLJ, 8/5–9 Lac qui Parle (2 from two locations) BJU, 8/10 Ramsey ph. AXH, 8/12 Wadena PJB, 9/4 Big Stone (W. Toqua L.) BJU.
2007Spring17 All south reports: 5/23 Yellow Medicine (St. Leo W.M.A.) BJU, 5/24 Scott HHD, RBW, 5/27 Carver (Chaska L.) JCy, Faribault HHD, Meeker (Minnesota L.) DMF, and Pipestone JWH, RMD, 5/29 Lac qui Parle (Caerulean W.M.A.) BJU, 5/31 Lac qui Parle (2, Arena Twp.) BJU. Only north report: 5/21 Kanabec (Eagle Rd., between 130th and 150th Ave.) DPG. [Corrected]
2007Summer513 Reported from all regions except the Southeast. First county breeding record for Jackson AXH. Unusual location 6/29 St. Louis (2 birds at Mud Lake, Gary-New Duluth) HHD.
2007Fall24 All reports: 8/1 Lac qui Parle (Caerulean W.M.A.) BJU, 8/5 Meeker (Minnesota L.) DMF, 8/11 Jackson (Spirit L.) CH, JWH, JCC, LS, 8/31 Blue Earth AXH, Marshall (Agassiz N.W.R.) BJU, 9/3 Itasca LS, Jackson (Spirit L.) PHS, JWH.
2008Spring35 All south reports: 5/6 Lac qui Parle (Perry Twp.) BJU, 5/14–15 Sibley (2 at Sand Lake) WCM, 5/15 Lac qui Parle (Big Stone N.W.R.) BJU, 5/16 Big Stone ASc, 5/28 Meeker (4 in Danielson Twp.) DMF, 5/31 Houston DPG. All north reports: 5/26 Clearwater JMJ, 5/30 Todd (Little Lake Osakis) fide RPR, 5/31 Cass (Big Rice Lake) BAW.
2008Summer310 Found in all regions of the state except the Southwest. All north reports: 6/27 Norman RBW, 7/13 Wadena PJB, 7/27 St. Louis (2, Floodwood W.T.P.) SWe.
2008Fall311 All reports: 8/3 Big Stone (Thielke Lake) DWK, JCC, JLO, 8/3 Sherburne PLJ, 8/3–10 Blue Earth ChH, DBM, 8/3–9/2 Morrison (Rice Lake W.M.A.) FGo, 8/4 Steele ARW, 8/9 Wadena PJB, 8/10 Redwood (2 at Willow W.M.A.) RMD, et al., 8/12 Swift (found dead in Appleton) BJU, 8/15 Nicollet RMD, 8/17 Otter Tail SPM, 8/25 Wright (2 at Pelican Lake) fide RPR, 8/26 Lac qui Parle (Big Stone N.W.R.) BJU, 9/12 Sibley (Sand Lake) RBW, 9/27 Scott (found dead) PEJ.
2009Spring110 All south reports: 5/3–16 Winona ANy, 5/4–6 Anoka AXH, DWK, PEB, 5/4–8 Nicollet RMD, WCM, 5/15 Meeker (Tower's Lake) DMF, 5/17 Stearns RMD, JWH, 5/19 Murray JEB, 5/22 Carver (2, Assumption Lake) JCy, Lyon RJS, 5/23 Chisago MJB, 5/30 Hennepin (Minnesota Valley N.W.R.) ALD, CRM. Only north report: 5/23 Marshall (3) CRM.
2009Summer58 Reported from all regions except Northeast, East-central, Southwest. All counts ? 3 birds.
2009Fall3 All reports: 8/1 Lyon (2, Black Rush Lake W.M.A.) JCC, Sherburne PLJ, 8/23 Big Stone (Thielke Lake) KRE.
2010Spring25 All south reports: 5/23 Nicollet ChH, RMD, Yellow Medicine (Upper Sioux Agency S.P.) BJU, 5/25 Big Stone CRM, 5/31 Brown (Stately Twp.) BTS, Lac qui Parle (Big Stone N.W.R.) BJU. All north reports: 5/14 Marshall (Agassiz N.W.R.) GT, 5/26 Cass KMo.
2010Summer614 Reported from all regions except Northeast.
2010Fall14 Only north report: 8/21 Grant (Herman) RTe. All south reports: 8/1–18 Sherburne (2, Sherburne N.W.R.) PLJ, m.ob., 8/4 Lac qui Parle (Plover Prairie) BJU, 8/12 Big Stone (Artichoke Lake) BJU, Swift (Lubenow W.P.A.) BJU, 8/22 Big Stone (Thielke Lake) KRE, (Ortonville) RTe.
2011Spring511 All south reports: 5/8 Isanti DBM, 5/9–20 Lac qui Parle (Madrena W.M.A.) BJU, 5/12 Hennepin CMB, 5/13–14 Dakota JLO, 5/14 Sherburne RZi, 5/23 Watonwan AnK, 5/26 Houston (2, Caledonia) RTe, CRM, 5/28 Lyon (2) RJS, Murray (Big Slough W.M.A.) DPG, 5/29 Anoka (Carlos Avery W.M.A.) MHe, Lac qui Parle RMD, BJU, Winona (Whitewater W.M.A.) RBW. All north 5/7 Morrison FGo, 5/8 Kittson LW, 5/9 Marshall MA, 5/22 Cass ABi, 5/29 Pennington JWH, BWF.
2011Summer821Reported from scattered sites in all regions except Northeast.
2011Fall17 Only north report 9/9 Douglas JPE. All south reports 8/1 Lac qui Parle (Agassiz Twp.) BJU, 8/7 Hennepin (Gleason Lake) RaR, Lac qui Parle (Pegg Lake) RBJ, 8/10 Nicollet (10, Swan Lake) RMD, 8/12 Hennepin (Minnesota Valley N.W.R.) RaR, 8/19 Big Stone/Stevens (640th Avenue) PHS, 8/20 Swift (Lubenow W.P.A.) BJU, 8/21 Big Stone (Toqua Twp.) BJU, Cottonwood RMD, 9/10 Swift DBM.
2012Spring513 All south reports: 5/8 Wabasha RPR, 5/10+ Lac qui Parle ASc, BJU, 5/13 Swift (Lubenow W.P.A.) SBM, Winona (Dorer Pools) DBz, 5/17 Meeker JEB, 5/17–19 Wabasha (Whitewater W.M.A.) JWH, ANy, SHo, 5/19 Houston (Mound Prairie) WCM, 5/21+ Sherburne PLJ, m.ob., 5/26 Rock (2) CRM, m.ob., 5/27–31 Pipestone (Woodstock W.M.A.) KRE, m.ob., 5/30 Anoka (Carlos Avery W.M.A.) SBM, Cottonwood SC, Murray SWe, 5/31 Isanti (Crooked Road W.M.A.) DPG. All north reports: 5/19–26 Douglas JPE, 5/24 Kittson LW, 5/25 Otter Tail DST, 5/29 Mille Lacs ASc, 5/31+ St. Louis (near Crane Lake) †DMK.
2012Summer1118 Found in all regions except North-central. New county record 6/15 Cook (Frost Lake, BWCA) ChJ. First county breeding record from Sherburne (August record) PLJ.
2012Fall11 No north reports. Late south 8/25 Nicollet (2) MiO, 9/1 Sherburne PLJ, 9/16 Hennepin SBM, ACr (median 9/2).
2013Spring15 All south reports: 5/6 Wabasha (Lake Zumbro) JBn, 5/20 Washington DaR, 5/21 Ramsey (Crosby Farm R.P.) JoD, 5/23 Carver (Carver P.R.) JCy, 5/25 Hennepin (Wood Lake N.C.) CAs, 5/26 Wabasha (2, Whitewater W.M.A.) SHo, 5/31 Hennepin LMS. Only north report 5/25 Kanabec DPG.
2013Summer613 Found in widely scattered locations in all regions except Southwest. First county record 7/10 Lake (county road 15, east of Beaver River Road) DBM.
2013Fall14 All north 8/16 Becker DLP. Late south 8/16 Faribault (195th Street Marsh) ClN, CoN, 8/24 Hennepin (Wood Lake N.C.) BAF, 9/3 Nicollet (Middle Lake) MiO, 9/15 Hennepin (Westwood Hills N.C.) AWh, JSl.
2014Spring26All south reports 5/8–10 Dakota (180th St. Marsh) GLa, CRM, ToL, 5/14 Jackson (near Holthe S.N.A.) BRB, 5/21 Goodhue (Hok-Si-La Park) DCZ, PSm, 5/24 Hennepin (2, Old Cedar Ave Bridge ) PEB, CMB, 5/25–27 Wabasha (Dorer Pools) DAB, RPR, DBz, 5/28 Scott (Murphy-Hanrehan P.R.) DEv. All north reports 5/24 Norman RAE, 5/25 Kittson (3, Twin Lakes W.M.A.) CRM, m.ob.
2014Summer712Found in scattered locations south and west of a line from Marshall to Pine. New county record 6/19 Pine (Chengwatana S.F.) HHD, RAE, m.ob. High count 7/27+ Hennepin (8, Wood Lake N.C.) CMB.
2014Fall16 High counts 8/5–12 Hennepin (8) CMB. Only north report 8/4 Roseau DPG. Late south 9/5 Hennepin (Wood Lake N.C.) PRi, 9/18 Hennepin CMB, 9/25 Washington SCr (median 9/2).
2015Spring214 South reports beginning 5/12 Washington RRu, JEc. Also reported in Anoka, Benton, Carver, Chisago, Hennepin, Kandiyohi, Meeker, Nicollet, Pope, Ramsey, Scott, Sherburne and Winona. All north reports Marshall 5/3–27 (Agassiz N.W.R.) CCr, KRi, 5/25 Norman (2) PEB, m.ob.
2015Summer1014 Reported from scattered locations in all regions except Northeast. High count 6/18 Sherburne (5, Sherburne N.W.R.) ToL. First county breeding record for Ramsey AXH.
2015Fall7 No north reports. Late south 9/6 Yellow Medicine (Spellman Lake W.P.A.) GWe, 9/7 Anoka (Rice Creek Chain of Lakes P.R.) BSp, 9/23 Cottonwood (Wolf Lake W.P.A.) KEm (median 9/2).
2016Spring43 All south 5/6–30+ Sherburne (Sherburne N.W.R.) JlB, m.ob., 5/7 Lyon (Black Rush Lake W.P.A.) RJS, 5/27–29 Anoka (3, Carlos Avery W.M.A.) RMD, ELC. All north 5/17 Becker (Tamarac N.W.R., South Tamarac Access Drive) PEB, 5/20 Morrison (Scandia Valley) RPR, 5/21 Becker (Tamarac N.W.R. Visitor's Center) DPi, LSm, NaH, 5/24 Marshall (Agassiz N.W.R.) CAs, 5/27 Red Lake RBJ.
2016Summer717 Seen in scattered locations in all regions except Northeast.
2016Fall14 Only north report: 8/3 Morrison (Shamineau Lake) CRM, KMS, SSc. Late south 8/21 Sherburne (Sherburne N.W.R., Wildlife Drive) ShB, SaJ, AJF, 9/2 Winona (Whitewater S.P.) DRy.
2017Spring68 Early south (median 5/11) 5/11 Hennepin MB-S, TFi, Sherburne ToL, 5/12 Dakota LiH, Watonwan KRE, m.ob. All north 5/13 Becker (Itasca S.P.) HeH, ShG, Morrison FGo, 5/19 Pennington DWK, HCT, SBM, 5/26 Douglas JPE, Otter Tail (Dane Prairie) WPl, 5/28–31 Crow Wing (Ray Cook W.M.A.) RBW, m.ob. Highest tally only 2.
2017Summer523 Observed in all southern and central regions plus Clay. First county breeding record 7/6 Washington AXH.
2017Fall110 Only north report 8/13 Grant (North Ottawa Impoundment) GUn. Late south 9/8 Cottonwood (Wolf Lake W.P.A.) KEm, 9/9 Hennepin (Old Cedar Ave. Bridge) BAF, SHF, 9/10 Lyon (2, Sham Lake) GWe (median 9/2).
2018Spring915 Early south (median 5/11) 5/5 Olmsted (Kalmar Reservoir) ASu, LiH, Wabasha (4, season high count, Whitewater W.M.A.) ASu, LiH, 5/6 Jackson DAk, m.ob. All north 5/11–13 Otter Tail JsS, 5/12–13 Clearwater (Itasca S.P.) ebd, 5/16 Polk ebd, 5/22–28 Grant (max. 2, North Ottawa Impoundment) LiH, 5/26 Beltrami RAE, HHD, 5/28 Cook (Grand Portage W.T.P.) ANy, BWF, Marshall NWi, JCJ, 5/30 Traverse ASu, 5/31 Cass HHD.
2018Summer930 Observed in all regions. First county breeding record 7/14 St. Louis SGW.
2018Fall322 All north 8/2–9 Becker (Stinking Lake) ebd, HHD, 8/4–11, 9/3 Grant (North Ottawa Impoundment) ebd, m.ob., 8/4, 8/9 St. Louis (max. 3, Mud Lake) JLK, m.ob., 8/9 Becker HHD. High counts 8/14 Olmsted (5, Eastside W.M.A.) RAE, m.ob., 8/17 Steele (5, Rice Lake S.P.) MwT. Late south 9/19 Nobles (2) KEm, 9/24 Cottonwood KEm, 9/27 Lyon RJS (median 9/3).
2019Spring311 Early south (median 5/11) 5/1 Houston SHo, 5/13 Watonwan ClN, m.ob., 5/15 Ramsey LiH. All north 5/20 Clearwater (Upper Rice Lake) BDo, DnS, 5/25 Becker (Burlington Twp.) LoK, 5/26 Aitkin (Rice Lake N.W.R.) ebd. High counts 5/31 Nicollet (4, Swan Lake W.M.A.) SLP.
2019Summer1029 Observed in every region. Unusual locations 6/2 – 7/4 St. Louis (2, Mud Lake) JLK, m.ob., 7/7 Itasca (near Cohasset) BDo, LiH.
2019Fall110 All north 8/3, 8–9 Grant (max. 2, North Ottawa Impoundment) LiH, m.ob. High count 8/1 Swift (4, 20th St. NW, Appleton) EzH, ASu. Late south 8/22 Hennepin TAT, 9/1 Lyon GWe, 9/16 Meeker GLr (median 9/3).
2020Spring311 Early south (median 5/10) 5/5 Washington IsH, 5/9 Scott ebd, 5/12 Houston BWF, ANy. All north 5/23 Wilkin (C.R. 15, Rothsay) AaL, m.ob., 5/23–25 (Manston W.M.A.) AaL, m.ob., 5/24–27 St. Louis (Mud Lake) HTr, m.ob., 5/30 Marshall (Agassiz N.W.R.) ebd. Highest tally only 2.
2020Summer722 Found in every region except Northwest, North-central. High count 6/29 Hennepin (6, Mother Lake) KWR.
2020Fall213 All north 8/15 Clay (Bluestem Prairie S.N.A.) JMy, Otter Tail (Pelican Lake) JMy. Highest counts only two. Late south 9/14 Nobles KEm, 9/19 Hennepin ebd, 9/23–25 Anoka ebd, m.ob. (median 9/3).
2021Spring510 Early south (median 5/9) 5/11 Steele (Rice Lake S.P.) DAB, (Armstrong Wetland Restoration) LiH, 5/13 Ramsey LiH, Washington SLP. All north 5/16–31 St. Louis (Mud Lake) HTo, StK, m.ob., 5/21 Marshall (Agassiz N.W.R.) ebd, 5/23 Cook (Upper Rd., Grand Portage) BWF, m.ob., 5/24 Douglas JPE, 5/31 Otter Tail (Orwell Twp.) TWe, BWe, (Glendalough S.P.) MO. Highest tallies 2.
2021Summer722 Observed in every region including St. Louis in Northeast, where rare but seemingly now annual in St. Louis River Estuary.
2021Fall45 All north 8/6 Crow Wing (Middle Whitefish Lake) ebd, Otter Tail (south of Fergus Falls) KRE, 8/31 Morrison (Lake Shamineau) HHD, 9/2 Norman (Agassiz-Olson W.M.A.) CRM, m.ob. High count 8/29 Hennepin (3, Wood Lake N.C.) MwT. Late south 9/2 Sherburne (Sherburne N.W.R. Wildlife Drive) EHi, 9/3–4 Hennepin (Wood Lake N.C.) DvN, m.ob., 9/12 Hennepin (Old Cedar Ave. Bridge) BLz (median 9/7).
2022Spring212 Early south (median 5/9) 5/6 Ramsey LiH, 5/8 Stearns AaL, ebd, 5/10 Houston TWe, m.ob. All north 5/11 Crow Wing (Rotary Riverside Park) ebd, 5/25 Norman (2, Agassiz-Olson W.M.A.) JWH, LHl, ebd. Highest tallies only two.
2022Summer822 Found in every region, but only St. Louis (Duluth, Mud Lake area) in Northeast.
2022Fall511 All north 8/1 St. Louis (Mud Lake) JLK, 8/17 Becker (Middle Cormorant Lake) ebd, 8/19 Crow Wing (Upper Cullen Lake) ebd, 8/24 Otter Tail (2, Fish Lake) JMy, 9/4 Becker (Fox Lake) ebd, 9/5 Polk (Brandt-Angus Impoundment) HHu. Several high counts of three individuals. Late south 9/10 Freeborn (3) JWH, m.ob., Ramsey ebd, 9/13 Sherburne HHD (median 9/7).
 
 Breeds throughout, except northeast.

Notes:

Click on the bird name to see a photographic image of the bird.
Column N  Number of counties where the bird was seen in the North.
Column S  Number of counties where the bird was seen in the South.