Seasonal Report Archive for The Loon - Tanagers, Cardinals, Grosbeaks 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: Tanagers, Cardinals, Grosbeaks
Summer Tanager
Scarlet Tanager
Western Tanager
Northern Cardinal
Rose-breasted Grosbeak
Black-headed Grosbeak
[Rose-breasted Grosbeak X Black-headed Grosbeak]
[Pheucticus grosbeak]
Blue Grosbeak
Lazuli Bunting
Indigo Bunting
[Lazuli Bunting X Indigo Bunting]
Painted Bunting
Dickcissel

Dickcissel(Spiza americana)
YearSeasonNS
1930SummerAlden Risser found the only nest reported of this species, at, Frontenac, June 21st, with four eggs. Scarlet Tanager; No nest was found but the writer saw a young bird being fed near Excelsior on Juno 4th.
1931SummerHarius Horse reports two nests of this interesting species. The first contained four dickcissel eggs and one of the cowbird on July 13th and the other contained five eggs on July.31st.
1933Summer That this nomad appeared in such nuobers as to mAke 1933 a "Dickcissel Year" is evinced by the numerous reports of its abundance which have cooe fron many parts of the state. Six nests wore reported. Grir.1es found a nest in Pennington County on June 23rd, when it held 1 egg..Another nest vrhich he found on the 24th held 3 eggs. Hieruenz found a nest on July 6th near Piertz which contained 3 hatching eggs and a Brown-headed Cowbird egg. Swedenborg reports young out of tho nest being fed on July 8th (near Minneapolis). Risser found tho bird nesting ip the Ca.na":'dinn Zone at Sturgeon ~~e, where he discovered a nest containing 3 eggs on July 1st. This occurence is nost interesting onc1 unexpected.
1934Summer A1though this was not a "Dickcissel year11, Hianenz managed to locate five nests of this species in one day, near Pierz, on July 5th. "The contents were as follows: 3 large young and 1 n.ddled egg; 3 eggs; 4 eggs; 2 f'resh eggs; and 1 egg. The nests \-tore all placed in bushes or weeds from 10 inches to ~feet from the ground. There also were two pai~s present with young just out of the nest and barely able to fly. 11 ~o other nests were reported.
1936Summer The onJ.y repo-rts were those of' Mrs. C. E. Peterson. At Lac quiParle on July 28th she saw three young out of' nest. Again on August 5th she observed adults feeding young out of nest.
1938SummerBetween' Worthington and the Dakota line Mr. Berthel saw 30 Black-Throated Buntings on June 15; they were seen less frequently as he traveled northward. They were probably nesting in the region.
1940SummerA nest with 2 eggs was found on June I9 by Harrell and Longley near St. Paul. The T. S. Roberts Club observed 2 nests, only one of which was successfuJ. It contained 3 eggs and a cowbird's egg on June 25.
1947SummerFeeding young, July 2, Lac qui Parle Co., Willis.
1961SummerOn 9 to 20 June Dean Honetschlager found a male singing over alfalfa field in Washington County. Another was seen near Donnelly, Stevens County on 17 June by Del Holdgrafer. Several seen on 10 June south of Hastings, Dakota County by Huber brothers.
1962SpringMay 20 Eden Prairie, Hennepin Co., Bob Janssen; May 26 East Union, Carver Co., Bob Janssen; May 27 numerous throughout southwestern Minnesota, Avifaunal Club. Evening Grosbeak; Mrs. Paul G. Kief reports several in Montevideo, Chippewa Oo., from February 17 until April 2. Mrs. Lee E. Payne of Willmar, Kandiyohi Co., reports that a flock spent all of March at her feeder. Mrs. Allan had them at her feeder in Ramsey Co., until May 12. Ray Naddy saw them at Duluth as late as May 31.
1962FallSept. 2, Carlos State Park, Lac qui Parle Co., Richard K. Olson; a very late date was Oct. 4, Graceville, Traverse Co., R. Grant.
1963SpringMay 12, East Union, Carver Co., R. Huber; May 18, Houston Co., many, R. Janssen; May 25, Traverse Co., R. Grant; May 29, Rice Co., 0. Rustad. Evening Grosbealc: March 5, FargoMoorhead area, variousobservers; April 22, Shotley, Beltrami Co., Mabel Goranson; May 23, Duluth, 30 seen, R. Janssen; May 31, Duluth, Mrs. S. N. Erickson.
1963SummerLac qui Parle Co., Salt Lake, July 27, ad feeding 1 y out of nest, Avifaunal Club.
1963Falllatest, Sept. 1, Rock Co., Avifaunal Club. Evening Grosbeak: Fargo-Moorhead area, Nov. 5, fide Elizabeth Anderson. Hubbard Co., Sept. 15, A. W. Peterson. Wadena Co., Oct. 1, R. Oehlenschlager. Washington Co., Nov. 16, Elizabeth Campbell. Washington Co., Nov. 29, D. Honetschlager. Winona Co., Sept. 15, James Walz. Winona Co., Nov. 6, Walter Schmidt. Winona Co., Nov. 16, Isabelle Kukowski. The extent of southward penetra· tion is delineated by a line drawn ap· proximately from the southeast corner of the state to the northwest corner.
1964Spring5-18 Anoka Co, LJ; 5-10 Stearns Co, RPR; 5-13 Goodhue Co, MAS; 5-23 Wright Co, EC; 5-10 Dakota Co, IG; 5-24 Douglas Co, MVS; 5-16 Washington Co, ACR; 5-10 to 5-13 Schroeder, Cook Co, Marie Aftreith.
1964Summerreported as very numerous by observers in southern half of state; Northern-most records were Wadena (RO) and Clay (EGA) Counties.
1964Fall9-20 Fargo-Moorhead, EGA; 10-3 Washington Co, ACR and 6 other observers, good details.
1965Springearliest 5-1 Dakota Co, FN; next 5-6 Princeton, WJH.
1966Springearliest 5-4 Wabasha Co, EMB; 5-15 Faribault, OAR; 5-17 Rochester, JPF.
1966Summertruly a good year; nested in Pope Co; also reported from Norman, Mahnomen, Goodhue, Winona, Anoka, Stevens, Wright, Carver, Rice, Hennepin, Dakota, Hubbard, Nobles, McLeod, Nicollet, Faribault, Waseca, Rock, Pipestone, Lincoln, Lyon, Murray and Yellow Medicine Co's.
1966FallLatest 9-10 Lincoln Co., 5060, DB, BL, RLH; 9-21 Lyon Co., PE.
1967Springearly 5-2 to 5-5, Duluth, JCG; 5-9 Olmsted Co., JPF, CMJ; 5-J 1 Nobles Co., HSH; 5-16 Hennepin and Carver 97 September 1967 Co.'s, FN/ MAS; 5-18 Goodhue Co., EWJ.
1967Summerreported from Anoka, Isanti, Lyon, Washington, McLeod, Wright, Carver, Hennepin, Wabasha, Rock, Nobles, Martin, Pope, Clay, Stevens, Lac qui Parle, Olmsted, Pipestone, Lincoln, Redwood Co's.
1967Fall latest 9-3 Pipestone Co., BL; 9-15 Lyon Co., PE; 9-29 Traverse Co., JAH.
1968Spring early 4-20 (exceptional) Fargo- Moorhead, fide EGA; 5-3 Stearns Co., KE; 5-10 Wright Co., EHD; 5-19 Goodhue Co., EMB and l.ake Co., Two Harbors, 1 at feeder, RK (may be only record for Lake Co.?); 5-21 Nobles Co., HSH; 5-25 Lac qui Parle Co., DB.
1968Summer reported from Stearns, Washington, Morrison, Lyon, Wabasha, Ramsey, Carver, Clay, Todd, Crow Wing, Winona, Stevens, Sherburne, Wright, Hennepin, Rice, Pope, Nobles, Jackson, Anoka, Blue Earth, Cottonwood, Roseau (GES) Co's.
1968Fall8-3 and 8-8 Cottonwood 9 and 4 LAF; 8-29 Wabasha 6 DGM; 8-25 Watonwan DMF.
1969Spring5-4-6 Tofte, Cook Co., OP; 5-6 Watonwan Co., EDK; 5-12 Watonwan Co., DMF; 5-24 Marshall Co., EIS and Two Harbors, Lake Co., RK; 5-30 (many) Nobles Co., HSH; 5-31 Cass Co., BT.
1969Summerreported in 18 counties north to Isanti and POPE (WH) Co's.
1969Fall8-8 Cottonwood LAF; 8-30 Lac qui Parle KP.
1970Springonly 7 reports (abundant in Illinois and Iowa): early south 4-24 Watonwan EK; 5-8 Rice OR; 5-17 Faribault HK; one NE report 5-20 to 5-30 Tofte, Cook Co., 1 at feeder, same location as last year, JP.
1970Summerreported from Carver, Hennepin, Cottonwood, Meeker, Pope, Freeborn, Dakota, Anoka, Washington, Wabasha, Winona, and Wright Co's. Most observers reP.,zrt the bird had left {or become secretive?) by late July.
1970Fall4 reports 8-2 Anoka EC; 8-13 Winona TV.
1971Springearly south 5-15 Jackson ES and Cottonwood 1-IK; 5-16 Jackson DB and Nobles RBJ. 
1971Summerno nests found but reported from 21 counties north to Pope, Crow Wing and Pine.
1971Fall8-3 and 4 Watonwan LF; 8-29 Rice BDC; 9-8 Grant KE; only reports.
1972Summerseen In Clay RBJ water (EW), Morrison (EC), Lac qui Parle, Lyon, Nobles, Cottonwood, Watonwan, Blue Earth, Nicol let, Rice, Carver, Hennepin, Wright, Dakota.
1973Summer Reported from 27 counties including Aitkin.
1973Fall Seen only in Rock, Mower, Freeborn, Faribault.
1974Spring Early south 4-15 Freeborn DG; 5-9 Murray AD; 5-19 Rock KE, TS, JB.
1974Summer Nested in Wabasha and Rock; also reported from 21 other counties north to Clay, Todd, Stearns.
1974Fall 8-3 Clay, Wilkin RBJ.
1975Spring Early south 4-23 Hennepin JC, DY, earliest date on record; 5-2 and 5-4 Lyon NH; 5-15 Murray ADK.
1975Summer Reported from 19 counties north to Clay, Stearns and Mille Lacs.
1975Fallonly report 8-6 Rock KE.
1976Spring Only 6 reports 5-14 to 5-30 reported from Lyon, Murray, Freeborn, Olmsted, Mower and Polk (5-29, 1, ETS).
1976Summernested in Murray; also reported from 30 other counties north to Kittson, 7-2, WKE), Aitkin (6-15 to 7-15, T. Savaloja) and Morrison (7-4, KL); more reports than usual.
1976Fall 3 reports: 8-1 Cottonwood LF, 8-7 Rock KE and Winona RJ.
1977Spring Early 5-5 Cottonwood LAF; 5-12 Fillmore JF; 5-15 Freeborn HK and Winona TS; also reported from Carver, LeSueur, Goodhue, Wabasha, Murray, Mower and Otter Tail Co's.
1977Summer Nested in Olmsted; also reported from 26 other counties north to Otter Tail (6-1, GO) and Kittson (6-11, RJ).
1978Spring Very few reports.
1978Summer Breeding reported from Martin; seen in 20 other counties north to Anoka, Morrison (Buckman), Otter Tail (Fergus Falls) and Clay (KJL).
1978Fall Five reports: 8-1 Carver VL, 8-15 Sherburne EH, 8-19 Rock RJ, 8-21 Lac qui Parle CMB and 8-30 Cottonwood LF.
1979Spring Three reports: 5-13 Houston EMF, 5-18 Stearns NH, 5-27 Rock DGW.
1979Summer Breeding reported from Rock; also seen in 18 other counties north to Hennepin, Grant. Evening Grosbea·k Seen in Cook, Lake, St. Louis, Pine (Oak Lake), Crow Wing, Cass, Itasca, Beltrami, Clearwater.
1979Fall Five reports: 8-4 LeSueur RJ, 8-11 Mower RRK and Olmsted JF, 8-12 Olmsted JSD, 9-18 Lac qui Parle CMB.
1980Spring Five reports 5-18 Murray AD, 5-24 Olmsted RJ, 5-25 Olmsted JF, 5-26 Dakota KG, 5-30 JCF.
1980Summer Seen in the southern part of the state north to Anoka, Stearns, Grant, Wilkin, Clay.
1980Fall Five reports: 8-1 Nicollet JCF, Nobles LCF, 8-2 Olmsted RJ, 8-3 Mower RRK and 8-6 Jackson LJF.
1981Spring Four reports: 5-20 Wright DCF, 5-28 Olmsted JEB, 5-29 Nicollet JCF, 5-31 Mower RRK.
1981Summer Seen throughout the South half plus Clay (7-17 Moorhead L&CF). Evening. Grosbeak Breeding data from Hubbard, Itasca, St. Louis. Seen throughout range.
1981Fall Two reports: 8-23 Nobles GS, 9-5 Dodge RJ. 
1982Spring One report: 5-30 Dakota JD.
1982Summer Seen in 22 counties in the southern half of the state as far north as Chisago, Sherburne, Traverse.
1982Fall Two reports: 8/5 Cottonwood LAF, Murray AD.
1983Spring Four reports 5/7 Renville MLF, 5/7 thru 5/9 Cook Mike and May Shere observed a pair at feeder, 5/25 Brown JSp, 5/28 Murray AD.
1983Summer Very widespread. Seen in 31 counties in the South plus Crow Wing, Wadena, Clay, Norman, POLK (7110, fifty males, SS), PENNINGTON.
1983Fall Late south 8/14 Pipestone KE, 8/21 Wright KL, 9/2 Olmsted BE.
1984Spring All reports 4/27 Sherburne SSa, 5/6 Cottonwood WH, 5/19 Rice KJ, 5/24 Scott PL, 5/25 Pipestone AD, 5/26 LeSueur GS.
1984Summerseen in 24 counties.
1984Fall Late south 8/18 Sibley TT, 8/19 Pipestone JPa, 9/29 Watonwan RJ.
1985Spring Early south 5/9 Faribault KWB/HLW, 5/22 Rock ND, 5/24 Rock SSt.
1985Summer Seen in 29 counties throughout the south half plus Clay (LCF), Wadena (AB).
1985Fall All reports 8/2 Lyon HK, 8/2 Nicollet JCF, 8/9 Murray AD, 8/11 OlmstedJEB, 8/18 Cottonwood LAF.
1986Spring Early south 5/4 Blue Earth MF, 5/12 Scott TTu, 5!14 Fillmore AMP.
1986Summer Seen in 25 counties north to Dakota, Sherburne, Stearns and Swift plus Clay (JP/AM). Hundreds seen in Fillmore 7/16 (AP) and 40 in two square miles in Mower on 7/13 (AP).
1986Fall Late north 10/24 Duluth KE; late south 8/8 Fillmore AP, 8/12 Freeborn NHo, 8/132 Cottonwood BF.
1987Spring Early south 5/12 Washington TBB, 5/16 Murray NO and Pipestone JP, 5/17 Cottonwood RG, Mower RRK and Olmsted RSE.
1987Summer Very widespread. Seen in 35 counties south and west of a diagonal from Dakota to Douglas , plus Clay (KR), Red Lake (BBS), Pennington (SKS).
1987Fall All reports 8/8 Freeborn NHO, 8/12 Murray NO, 8/15 Rock AP, RSE, RH, RJ.
1988Spring Early south 5/6 Steele KV, 5/19 Murray ND, 5/21 Brown JS, Mower AP, Nicollet JF, Olmsted BSE and Pipestone JP.
1988Summer Possibly the largest invasion ever recorded in the state (The Loon 60: 143-144). No fewer than 140 reports from 73 counties as far north as Kittson, Roseau, and St. Louis, and including all counties in the northwest, south central, and southeast regions. Nested in Aitkin (WN), well north of usual range; despite abundance, no other nesting records.
1988Fall Late north 8/11 Pennington AB ; late south 8/13 Dodge AP, RJ, 8/14 Wabasha AP, 8/20 Yellow Medicine AB.
1989Spring Early south 5/12 Cottonwood ED 5/14 Murray AB, ND, 5/16 Lyon TG. '
1989Summer Extremely abundant relative to most years, although eclipsed by last year's record invasion . Seen in 53 counties as far north as Marshall, Aitkin, Pine; many observers reported very high numbers. Despite abundance, no nesting reports.
1989Fall Late north 10/10 Duluth KE; late south 9/13 Mower AP, 9/28 Murray ND, 10/4 Pipestone JP.
1990Spring Early south 5/13 Murray ND, 5/18 Cottonwood ED, 5/26 Rice TB, OR.
1990Summer Fewer reports than past two years, although still abundant. Seen in 42 counties as far north as Clay, Becker, Wadena, Mille Lacs.
1990Fall Late north 8/19 Wilkin MO; late south 8/5 Carver GP, 8/8 Pipestone JP, 8/14 Brown JS.
1991Spring Early south 5/10 Rice OR, 5/14 Cottonwood ED, Pipestone JP, 5/15 Murray NO.
1991Summer Gradual decline in reports continues, following peak in 1988. Seen in 39 counties as far north as a line through Marshall, Wadena, Sherburne, Anoka.
1991Fall Late north 10/4 Cook KMH (The Loon 63:285); 8/16 Pipestone JP, 9/7 Rock JPa.
1992Spring Early south 5/10 Lyon HK, 5/12 Murray ND.
1992Summer Gradual decrease in number of reports continues, following irruption peak in 1988. Seen in 35 counties as far north as Marshall in west and Anoka in east.
1992Fall Late north 8/4 Clay LCF; late south 8/6 Rice OR, 8/20 Carver KB.
1993Spring Early south 5/6 Murray ND, 5/11 Brown JS.
1993Summer Continued decrease in number of reports since 1988 high. Probable nesting in Stevens; seen in 27 other southern counties.
1993Fall Late south 8/2 Cottonwood DSm, 8/13 Olmsted JB.
1994Spring Early south 4/21 (earliest date on record) Cottonwood ED, 4/30 Lyon HK.
1994Summer Nested in Winona JPo; observed in 27 other southern counties plus Grant, Crow Wing, Otter Tail, Clay, Marshall.
1994Fall All reports: 8/11 Brown JS, 8/12 Rice TB, 8/15 Olmsted JB, 9/20 Duluth, St. Louis Co. KE.
1995Spring Early south 4/28 Lac qui Parle RH, 5/11 Rice OR, 5/29 Washington DS. Only report north 5/24 Clay MN.
1995Summer Most reports since 1990. Nested in Sherburne KB; seen in 41 other counties as far north as Polk in the west and Aitkin in the east.
1995Fall Late north 8/7 Pennington SKS, 9/2 St. Louis FN. Late south 8/13 Jackson KB, 8/21 Pipestone JP, 8/22 Brown JSp.
1996Spring Early south 5/9 Jackson JCBC, 5/15 Murray and Rock ND.
1996Summer Probable nesting in Blue Earth. Observed in 27 other southern counties plus Clay, Crow Wing; also reported 6/16 St. Louis (Sax-Zim bog) fide KE.
1996Fall No north reports. Late south 8/16 Dakota DBS and Jackson JCBC, 8/20 Lincoln RgS, JA, 8/31 Murray RgS.
1997Spring All reports: 5/13 Le Sueur MF, 5/21 St. Louis (Virginia) NJ, 5/27 Murray ND, 5/28 Lincoln RJ, 5/30 Jackson MJC, (no date) Brown BBo.
1997Summer Reported in 24 southern counties plus Wilkin, Otter Tail, Clay.
1997Fall All reports: 8/3 Brown JSp, Dakota ABo and Washington GS, 8/7 Renville CMa, 8/11 Jackson MJC, 9/19 Lyon RgS.
1998Spring Early south 5/18 Chisago RH and Murray ND, 5/19 Olmsted DA/BE. Reports from eight south counties with birds spreading eastward earlier than usual.
1998Summer Relatively few reports; three consecutive years of decline since the most recent peak in 1995. Reported in 24 southern counties plus Becker in the northwest.
1998Fall All reports: 8/2 Lincoln, Pipestone and Rock KSu, PS, 8/2 Lyon RgS, 8/3 Redwood and Rock RJ, 8/22 Olmsted DA/BE.
1999Spring Early south 5/8 Brown BBo, 5/16 Meeker DF, then scattered reports in late May. Only north report: 5/31 Carlton LW.
1999Summer Reported in 26 southern counties, plus Traverse. Lack of northern reports implies that the population is at an ebb in its erratic cycle, for the third consecutive year; however, several observers reported increased numbers.
1999Fall Late north 8/1 Traverse PS. Late south 8/6 Brown JSp, Goodhue SL and Lyon RgS, 8/10 Meeker and Renville DF.
2000Spring Early south (median 5/10) 5/6 Meeker DF, 5/13 Cottonwood ED. Also reported from Rock, Murray, Freeborn, Dakota, Fillmore. No north reports.
2000Summer An irruptive year; twice the number of reports compared to the previous three years (the largest peak in recent years occurred in 1988, with a lesser peak in 1995). Observed in 54 counties as far north as a line through Polk, Red Lake, Crow Wing, Kanabec.
2000Fall After numerous summer reports of this irruptive species, only fall report: 8/12 Hennepin SLC.
2001Spring All reports: 5/12 Stearns RPR, 5/28 Murray NED, Blue Earth ChH and Olmsted PWP, 5/29 Lyon RJS.
2001Summer Relatively few reports, similar to 1997–1999. Seen in 27 counties as far north as a line through Polk, Red Lake, Cass, Crow Wing, Dakota.
2001Fall All reports: Brown, Cottonwood, Dakota, Freeborn, Hennepin, Meeker, Murray, Pipestone, Rock, and Steele. Last observed 8/22 Hennepin SLC, 9/12 Steele RBJ (compare with recent median south departure 8/19).
2002Spring Only reports: 5/27 Anoka KJB, 5/29 Murray NED.
2002Summer Reported from 48 counties, rivalling the recent peaks of 1995 and 2000 but falling well short of the huge irruption in 1988 (73 counties); seen as far north as a line through Polk, Red Lake, Wadena, Morrison, and Pine counties .
2002Fall Only north reports: 8/11 Traverse HHD, KRE, mid-August in Wilkin LBF. Reported south from Lac qui Parle, Yellow Medicine, Martin, Freeborn, Olmsted, and (late south) 8/19 Brown RBJ, 8/24 Dakota TAT.
2003Spring All reports: 5/25 Renville PME, 5/28 Yellow Medicine BJU, 5/31 Brown, Dakota, Rock.
2003Summer Found in 30 counties as far north as a line through Polk, Cass, and Pine.
2003Fall All reports: 8/1 Washington REH, 8/4 Mower RRK, 8/9 Brown JSS, 9/1 Lac qui Parle BJU.
2004Spring Early south 5/4, 5/28+ Lac qui Parle BJU, 5/15 Freeborn AEB; also reported from Carver, Murray, Rock.
2004Summer Observed in 33 counties south and west of a line from Mahnomen to Houston.
2004Fall Two reports: 8/20 Freeborn AEB, 9/16 Clay EEF.
2005Spring Five reports from four south counties: 5/3 Steele NFT, 5/23 Rock PHS, 5/29 Houston PHS and Murray NED, 5/30 Steele (3) NFT.
2005Summer Reported from 41 counties south and west of a line from Polk to Houston.
2005Fall Only north report: 8/28 Clay BJU. Reported from six south counties including (late south) 8/23 Lincoln BJU.
2006Spring Reported from 15 south and 4 north counties. Excluding several undocumented reports up to three weeks earlier than recent median arrival (5/10), early south 5/23 Lac qui Parle BJU, 5/24 Brown RPR. Bulk of reports started 5/25. All north reports: 5/29 Clay RBW, 5/29 Pine JJS, 5/31 Clay CMN, PBB and Otter Tail SPM. Also, an amazing location of a flyover heard by four knowledgeable observers near Isabella (5/29 Lake JWL)!
2006Summer Reported from 78 counties in all regions of state. High counts north 6/17 Clay (12) PBB, 6/29 Wadena (13) PJB. High count south 6/24 Lac qui Parle (46) WCM.
2006Fall All north reports: 8/1 Wadena PJB, 8/4 Mille Lacs RBW, 8/4 Morrison RBW. Reported from 17 south counties. Second highest fall count 8/1 Lac qui Parle (40) BJU. Late south 8/21 Lac qui Parle BJU, 8/25 Yellow Medicine WCM, 8/27 Olmsted LAV.
2007Spring118 Early south 5/19 Steele KRV, NFT, 5/21 Olmsted JWH, 5/23 Scott RBW. Only north report: 5/31 Mille Lacs NSc. Bulk of reports started 5/23.
2007Summer1744 Observed in central and southern regions as well as Polk, Norman, Clay, Clearwater, Hubbard, Wadena, Cass, Aitkin, Carlton.
2007Fall212 Only north reports: 8/1 Mille Lacs ASc, NSc, 8/20 Cass ALB. Late south 8/22 Rock DAT, 8/24 Swift BJU, 9/3 Lac qui Parle BJU, 9/15 Lac qui Parle (Salt L.) DWK (median 8/21).
2008Spring26 All south 5/19 Pipestone BJU, 5/25 Meeker DMF, 5/26 Dakota FKB, Sibley WCM, Wabasha KRE, 5/31 Lac qui Parle BJU. All north 5/25 St. Louis CCB, 5/26 Clearwater JMJ.
2008Summer727 Found in all regions of state including Carlton (7/9, DCr) in Northeast.
2008Fall25 All north 8/7 Wilkin EEO, 8/9 Traverse KRE. All south 8/1 Big Stone PHS, 8/2 Brown BTS, Lac qui Parle BJU, Meeker DMF, 8/9 Lac qui Parle MHe, Stevens HHD, LS (median 8/21).
2009Spring15 South reports start with a very early migrant 4/24 Nicollet ph. †RMD, followed by 5/21 Dakota JLO, Nicollet RMD, ChH, 5/22 Olmsted JWH, 5/23 Meeker DMF, 5/28 Waseca DAB. Only north report 5/31 Carlton DCr.
2009Summer428 Reported from all central and southern regions. All north reports: Wilkin, Otter Tail, Carlton, St. Louis. First county breeding records from Washington TEB, Scott SLP. High count 6/20 Dakota (15) SWe.
2009Fall3 All reports 8/1 Meeker DMF, 8/9 Blue Earth ChH, 9/19 Pipestone DBM.
2010Spring24 Early south (median 5/10) 5/14 Rice BHe, 5/19 McLeod CaR, 5/22 Blue Earth PRH, ChH, 5/23 Rock CLW, DCh, Wright DWK. North reports of this species do not occur until well into June (see summer report).
2010Summer836 Observed in all central and southern regions, plus Aitkin, Clay. First county breeding records from Dakota LMS, Todd JLK.
2010Fall7 Late south 8/8 Blue Earth ChH, 8/11 Lac qui Parle BJU, 8/14 Brown BTS, 8/15 Lyon DBM, 8/20 Dakota RZi, 9/4 Lac qui Parle BJU.
2011Spring7 Early south (median 5/10) 5/9 Blue Earth ChH, 5/11 Dakota RLW, and then 5 more counties beginning 5/28.
2011Summer951Reported from all regions except Northeast. Unusual location 6/19 Itasca (Rush Lake) JEB. First county breeding records for Lac qui Parle JF, Stearns MJB. High counts 6/11 Rock (30, Blue Mounds S.P. campground area) ChA, 6/5 Yellow Medicine (25) CMB, 6/17 Dakota (25) TAT.
2011Fall426 All north 8/1 Hubbard ANy, 8/6 Douglas DBM, Grant DBM, Traverse (2) DPG, 8/27 Grant HHD, RAE. Late south 9/17 Hennepin (Ft. Snelling National Cemetery) TAT, and then record late 10/24 Hennepin (Eden Prairie) SLC, (median 8/21). Also see undocumented reports.
2012Spring235 Early south (median 5/10) 5/1 Goodhue BRL, 5/7 Pipestone LFr, Sibley JSc, 5/11 Carver WCM, RMD, 5/12 Washington (3) MDa. All north 5/26 Crow Wing ABi, 5/28 Otter Tail HHD. High counts 5/29 Dakota (28, males singing on territory at Randolph Great Western Industrial Park) CMB, 5/25 Rock (24, Blue Mounds S.P.) TMo.
2012Summer3353 Observed in every county except Cook. New county record 6/22 Koochiching RBJ. High counts 6/23 Carver (62, in nine locations) JCy, 6/12 Rock (41, Blue Mounds S.P.) KDS. First county breeding records Anoka AXH, Chisago SuL, Cottonwood JSc, Crow Wing PSP, Fillmore DOK, Hennepin fide BBA, Ramsey AXH, Sibley PRH, St. Louis SGW, Waseca PAl, Wright RLL.
2012Fall424 All north 8/5 Polk (2) SAS, 8/6, 8/9 Morrison (Long Lake) NKi, 8/17 Todd JeM, DTM, and first-ever reports from the Hawk Ridge/Lester River Census in St. Louis: total of 12 individuals 8/24 – 9/16 KJB. Late south 9/3 Dakota (Randolph Industrial Park) TAT, ADS, 9/4 Lac qui Parle (Big Stone N.W.R.) ph. BJU, 9/9 Dakota (2, Acacia Cemetery) TAT, 9/23 Olmsted (Cascade Meadow Wetlands and Environmental Science Center) ph. MHn (median 8/21).
2013Spring18 South reports began with an early migrant 5/8 Kandiyohi FGo, followed by 5/18 Le Sueur ChH, AnK, 5/23 McLeod DAs, 5/26 Murray GWe, 5/28 Ramsey MeJ, 5/29 Dakota DVe, Houston JEB, Lyon GWe. Only north report 5/28 Otter Tail (Busko W.P.A.) CSl.
2013Summer1149 Not as widespread as the previous year. Reported south of a line from Polk to Kanabec and Chisago. High counts 6/26 Rock (36, Blue Mounds S.P.) GHo, KDS, 7/16 Lincoln (32, Northern Tallgrass Prairie N.W.R., Gislason Lake) CoN. First county breeding records from Freeborn EHl, Houston ShK, Le Sueur AXH, Meeker MJB.
2013Fall123 Only north report 8/16 Traverse KRE, m.ob. High counts 8/10 Rock (25) RyM, 8/2 Rock (17) EPr, RJa. Late south 8/28 Faribault JSn, 8/29 Big Stone DLP, Mower RTP, 9/18 Mower BAb, 9/26 Mower RBJ (median 8/21).
2014Spring213Early south (median 5/10) 5/11 Murray GWe, 5/12 Faribault WAF, 5/17 Goodhue PDK. Only north reports 5/30 Kanabec and Mille Lacs JEB.
2014Summer1243Found in all regions except Northeast.
2014Fall21 No north reports this season. Late south 8/19–21 Rock LDw, 8/30 Rock RSA and a very late 9/19 Olmsted (5, Cascade Meadow Wetlands and Environmental Science Center) LAV (median 8/21).
2015Spring112 Early south (median 5/10) 4/25 Freeborn RTP, 5/9 Lac qui Parle CLd, 5/15 Goodhue CBu, 5/16 Dakota CTa, 5/17 Redwood ARW then, as typical for this species, reports began in earnest the last week of May. Only north report 5/18 Lake ph. PgR.
2015Summer439 Reported from all central and southern regions plus Carlton. Greatest concentration in southern regions.
2015Fall121 Only north report 8/4 Grant CNn. High counts 8/1 Pipestone (10, Pipestone N.M.) TKa, 8/1 Renville (7) JoS. Late south 8/22 Rock KEm, MEm, 8/24 Jackson KEm and a very late 10/2 Nobles RBW (median 8/27).
2016Spring19 First reports south 5/4 Brown BTS, 5/10 Rock KEm, 5/16 Olmsted JWH then, as typical for this species, reported much more frequently beginning the last week of May.
2016Summer2453 Reported from all regions. High counts 6/16 Lyon (58, 190th Gravel Pit) GWe, 6/15 Rock (50, Blue Mounds S.P.) CoM. First county breeding record 7/21 Rice JLt.
2016Fall426 All north 8/11 Grant CNn, 8/12 Beltrami (Upper Red Lake Twp.) KBe, 8/14 Grant LiH, 9/14 Polk (Rydell N.W.R.) JmB, 9/20 Lake (Two Harbors) ph. JWL. High counts 8/5 Lyon (10) GWe, 8/5 Yellow Medicine (7) GWe. Late south 9/4 Rock RBW, 9/7 Jackson DAk, Olmsted LAV (median 8/31).
2017Spring222 Early south (median 5/9) 5/9 Faribault WAF, 5/13 Blue Earth LiH, 5/14 Rock LiH. All north 5/18 Lake (Two Harbors High School) ArL, JWL, SLL, 5/26 Clay (Ulen wetlands project) CMN. High counts 5/18 Dakota (6, Great Western Industrial Park) BAF, 5/26 Olmsted (6, Rock Dell W.M.A.) LAV.
2017Summer2852 Found in all regions. High count 6/25 Rock (47, Blue Mounds S.P.) LiH, ASu. First county breeding record 7/30 Steele PSu.
2017Fall427 High counts 8/3 Grant (10, North Ottawa Impoundment) RPR, 8/7 Rice (8) RMl, 8/13 Lincoln (8, Lake Benton) VKl, 8/1 Washington (7) JBu. All north reports 8/1–7 Todd ALu, 8/1–20 Grant (North Ottawa Impoundment) m.ob., 8/8 St. Louis (H.R.N.R.) StK, 8/11 Traverse ASu, LiH, KnM, DFe, 8/19 St. Louis (Stoney Point) StK, 9/25 St. Louis (Stoney Point) TRK, 9/28 St. Louis (Stoney Point) TRd (median 8/20). Late south 8/24 Washington ebd, 8/27 Hennepin TAT, Waseca BHe (median 8/31).
2018Spring835 Early south (median 5/9) 5/6 Dakota DnS, MWS, Waseca DAB, ANy, 5/7 Cottonwood DAk, 5/8 Blue Earth STa. As usual, most of the south reports came late in the month beginning 5/24. All north 5/11 Wilkin ebd, 5/14 Grant CNn, 5/25 Pine KrM, 5/28 Otter Tail JsS, 5/29 Kanabec ANy, 5/30 Traverse ASu, 5/31 Cass HHD, Clay CMk, ASu. High counts 5/28 Olmsted (25, Rock Dell W.M.A.) BLa, 5/29 Yellow Medicine (17, Mound Spring Prairie) GWe, 5/28 Steele (15) JCC, 5/29 Rock (15) JmP.
2018Summer2553 Found in all regions. High count 6/22 Yellow Medicine (62, Lyon/Yellow Medicine Conservation Easement) GWe. First county breeding records 8/5 Redwood ASu, 7/18 Yellow Medicine GWe.
2018Fall1032 Highest number of north reports in over ten years, mostly in the Northwest and West-central, including 8/4 Norman  SAu, 9/2 Polk KRE, m.ob. High counts 8/3 Otter Tail (15) JsS, 8/3 Grant (14, North Ottawa Impoundment) ebd, 8/8 Cottonwood (14, Jeffers Petroglyphs Historic Site) LHl, 8/29 Yellow Medicine (14, Lyon/Yellow Medicine Conservation Easement) GWe. Late north 9/12 Todd SDi, 9/26 Grant REn (median 8/24). Late south 9/17 Ramsey RMD, 9/18 Lyon RJS, 9/24 Yellow Medicine GWe (median 8/31).
2019Spring114 Reflecting the irruptive nature of this species, reported in fewer than half the number of counties of spring 2018 and more typical of the past ten years. Early south (median 5/9) 5/13 Hennepin ASu, 5/15 Rock BDo, 5/16 Lyon BDo, Olmsted MiD, 5/17 Cottonwood LHI, Hennepin IVa. Only north 5/26 Becker BDo.
2019Summer1551 Reported from every region except Northeast. Sparse in the Northwest and the North-central.
2019Fall524 All north 8/1 Clearwater (Clearwater Rice Paddies) REn, AxB, 8/1–11 Wilkin (Breckenridge W.T.P.) m.ob., 8/3 Douglas LiH, 8/3–15 Grant (North Ottawa Impoundment) m.ob., 8/14–15 Traverse HHD, MAJ. High counts 8/3 Rock (30, Blue Mounds S.P.) ebd, 8/20 Mower (10, Le Roy Twp.) JPr. Late south 9/18 Yellow Medicine GWe, 9/22 Cottonwood ebd, 9/28 Lyon GWe (median 9/1).
2020Spring24 Early south (median 5/9) 5/8 Dakota DSh, 5/9 Rock ebd, 5/14 Steele JHl, 5/20 Washington ASu. High counts 5/29 Olmsted (5, Rock Dell W.M.A.) TCL, 5/31 Rice (5, Prairie Creek W.M.A.) GHo, 5/28 Scott (4, Geis Lake) ebd.
2020Summer3053 Found in every region as far north as Marshall and Kittson in Northwest, Lake of the Woods and Koochiching in North-central. High count 7/1 Pipestone (67, unduplicated 4-hour count in east-central and southeastern parts of county) RAE.
2020Fall731 Reported from most counties south of a line from Wilkin to 8/2 Pine (2, Pine City) LEv, plus 8/22 St. Louis (Stony Point) StK, 8/23 St. Louis (Park Point R.A.) StK, IDv, and latest north 10/8 Lake (Two Harbors) ph. BMu, ph. JWL. High counts 8/12 Lincoln (8, Northern Tallgrass Prairie N.W.R.) GWe, 8/1 Lyon (7, 160th Ave, Russell) GWe. Late south 9/5 Jackson ebd, 9/6 Lyon GWe, 10/3 Lincoln (Fox W.P.A.) JWH, ph. KEm (median 9/1).
2021Spring635 Reported in a similar number of counties as during the 2012 and 2018 irruptions. By season’s end, reported from most counties south of a line from Clay to Houston County, plus Polk and Cass. Early south (median 5/9) 5/11 Rock KEm, 5/13–17 Rice NiR, REn, RLF, m.ob., 5/17 Blue Earth MiO, BTS. Early north 5/19 Clay ebd, 5/22 Grant (2) WPl, 5/23 Polk REn, RLF.
2021Summer3453 Found in all 87 counties during a major irruption including 6/17 – 7/1 Cook (3 locations) PHS, m.ob. High counts 6/30 St. Louis (76, Sax-Zim Bog, S of Arkola Road) PHS, 6/13 Watonwan (75, county-wide) BTS, MiO, 6/7 Carlton (63, Firebird W.M.A. and Automba Road) ASu, 6/16 Aitkin (58, Kestrel Ave.) CLR, KWR. High counts in the Northeast were especially noteworthy given scarcity of suitable habitat compared to other regions; also note 6/8 Koochiching (14, concentrated along one bend of C.R. 6) ASu. In the Koochiching State Forest, two were found singing 6/12 in a clearcut about two miles off Toomey Williams Road TWe, BWe. Major irruptions are thought to be drought-related (The Loon 85:35–42). First county breeding record: 7/5 Benton DOr.
2021Fall436 Found in every region except the North-central. All north 8/3–4 Marshall (2, Agassiz Valley) HHu, 8/4–23 Polk (three locations) ThH, HHu, 8/4–14 St. Louis (Sax-Zim Bog) ebd, 10/2 St. Louis (2, Stony Point) IDv, StK. High counts 8/6 Rock (19, county total) RAE, 8/2 Winona (12, Lewiston W.T.P.) ToM, 8/2 Pipestone (8, Pipestone N.M.) ebd. Late south 9/5 Olmsted SHk, 10/17 Sibley †TWe, †BWe, and latest record for state 10/28 Yellow Medicine ph. †TWe.
 
 Breeds mostly south, irruptive breeder north.

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.