Seasonal Report Archive for The Loon - Warblers 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: Warblers
Ovenbird
Worm-eating Warbler
Louisiana Waterthrush
Northern Waterthrush
Golden-winged Warbler
Blue-winged Warbler
Blue-winged Warbler
[Golden-winged Warbler X Blue-winged Warbler]
[Lawrence's Warbler]
[Brewster's Warbler]
Black-and-white Warbler
Prothonotary Warbler
 Swainson's Warbler
Tennessee Warbler
Orange-crowned Warbler
Nashville Warbler
Connecticut Warbler
MacGillivray's Warbler
Mourning Warbler
Kentucky Warbler
Common Yellowthroat
Hooded Warbler
American Redstart
Kirtland's Warbler
 Cape May Warbler
Cerulean Warbler
Northern Parula
Magnolia Warbler
Bay-breasted Warbler
Blackburnian Warbler
Yellow Warbler
Chestnut-sided Warbler
Blackpoll Warbler
Black-throated Blue Warbler
Palm Warbler
Pine Warbler
 Yellow-rumped Warbler
[Yellow-rumped Warbler (Myrtle)]
[Yellow-rumped Warbler (Audubon's)]
Yellow-throated Warbler
Prairie Warbler
Black-throated Gray Warbler
Townsend's Warbler
Hermit Warbler
Black-throated Green Warbler
Canada Warbler
Wilson's Warbler
Painted Redstart
Chestnut-sided Warbler(Setophaga pensylvanica)
YearSeasonNS
1930SummerA finished, but as yet empty, nest of this species was found by Gustav Swanson near Deer River on June 17th.
1943SummerSt. Louis County, 3 y.oung, July 11. E. Jones.
1946Summer3 eggs, June 13, Beltrami Co., Owre. There have been reports of chestnutsides for only two of the last six years.
1962SummerJune 21, Hibbing, nest with 4 eggs, two and a half feet up in raspberry brambles, Harriet Micensky.
1962Falllast date, Oct. 4, Ramsey Co., A. C. Rosenwinkel.
1963SummerSt. Louis Co., Fish Lake, July 30, ad with 2 y, D. Meyer.
1964Spring5-5 HAnnepin Co, MAS; 5-6 Ramsey Co, ELC; 5-17 Washington Co, DH; 5-17 Crow Wing Co, MSB; 5-13 Ramsey Co, ACR; 5-7 Duluth, JCG.
1964Summerbreeding Crow Wing (MSB, TEM), Cook (MAF) and Lake (JCG) Counties; Crow Wing Co, 6-6, 3e and 1e Cowbird, ELC. Bay·breasted Warbler: 6-20, McNair, Lake Co, DP, RG, RLH; 7-10, Lake Vermillion St. Louis Co, RE.
1964Fall9-11 Ramsey Co, ACR; 9-24 Hibbing, HM.
1965Springearliest 5-5 Washington Co, WWL, Rochester, JPF and Hennepin Co, VS.
1965Falllatest 9-27 (DS) and 9-29 (WWL) Washington Co.
1966Springearliest 5-7 Vasa, BL and Minneapolis, VL; 5-8 Frontenac, GD, GG, FV and Stevens Co, JAH; 5-11 Washington Co, WWL.
1966Summerreported from Cook, Lake, St. Louis, Itasca, Crow Wing, Rice and Winona Co's.
1966FallLatest 9-25 Duluth, AKA; 10-1 Anoka Co., WHL.
1967Springearly 5-2 Hennepin Co., FN/MAS; 5-11 Hennepin Co., DB; 5-12 Winona Co., FV/ HVBC; 5-13 Jackson Co., BL.
1967Summernested Crow Wing Co.; also reported from DAKOTA Co. (female banded 7-5 had brood patch, MRL), Cook, Lake, Clearwater, Aitkin Co's.
1967Fall latest 9-17 Pine Co., MIG; 9-29 Washington Co., DS, WWL and Morrison Co., LSR.
1968Spring early 5-2 FargoMoorhead, fide EGA; 5-7 Minneapolis, VL, FN/MAS; 5-9 Minneapolis, DB; 5-11 Washington Co., DS.
1968Summer nested in Hubbard Co; also reported from St. Louis, Lake, Cook, Clearwater, Pine, Morrison, Crow Wing, Carlton, Beltrami Co's.
1969Spring5-4 Hennepin Co., DB, VL; 5-5 Nicollet Co., BL, and Hennepin Co., WKE; 5-6 Mille Lacs Co., MI; 5-15 Duluth, PBH, and Lake Co., RK; 5-22 Blue Earth Co., HBT; 5-24 Goodhue Co., DS, and (20) Duluth, PBH.
1969Summernested in Cass Co.; also reported from St. Louis, Mille Lacs, Crow Wing, Cook, Lake, Morrison and Beltrami Co's. Late spring migrant 6-3 from Mountain Lake, Cottonwood Co. LF.
1969Fall8-22 Wright ETS; 8-31 Hennepin WKE; 9-13 Winona BTV; 9-15 Duluth KS; 9-16 Ramsey VL; 9-24 Duluth KS.
1970Springearly south 5-5 Winona TV; 5-6 Stearns MC; 5-7 Hennepin RG and Dakota DB; early north 5-9 Crow Wing J Band Morrison LR; peak 5-25 Duluth (60) JG; late south 5-29 Hennepin DB; 6-2 Chisago FS.
1970Summernested in Mille Lacs Ml; also reported from Itasca, Beltrami, St. Louis (Floodwood 7-2 23 MMC), and Crow Wing Co's. 
1970Falllate north 8-27 Duluth RL; 9-7 Morrison LR; early south 8-24 Hennepin WKE; 8-25 Wright ES and Washington WL; late south 9-16 Goodhue VL; 9-23 Cottonwood LF; 10-3 Winona TV.
1971Springearly south 5-11 Hennepin FN, WKE, ES, VL and Washington WL; 5-12 Hennepin DB; early north 5-15 Aitkin JH; 4 reports on 5-16; late south 5-26 Hennepin WKE; 5-31 Wright BH.
1971Summernested in Mille Lacs; also reported from St. Louis, Cook, Crow Wing, Aitkin, Lake of the Woods, Morrison, Clearwater, Marshall and Washington (6-27 JG, EC).
1971Fallearly south 8-5 Washing ton; 8-25 Ramsey; late south 9-10 Washington and Wright; 9-27 Hennepin; 10-7 Stearns; late north 9-18 Lake and Duluth.
1972Summernested in (Crow Wing), (Aitkin); seen in Clearwater, Hubbard, Becker, Cass, Mille Lacs, St. Louis, Lake, Cook, Carlton, Washington (6-17 singing male, May Twp., EC).
1973Spring32 REPORTERS REPORTING. EARLY SOUTH 5·88  HENNEPIN ETSJ 5-11 I SANTI CUI 5•13 HENNEPIN SCJ EARLY NORTH S-18  CLEARWAT£11. RCOJ S~ l 9 ST. LOUIS NJHJ 5-19 ITASCA OBJ P£AK 5-18 ANOKA (8)  SCI 5-28 ~T. LOUIS (6) JCG.  
1973Summer Breeding cards from Aitkin, Lake; seen in Washington, Isanti, Mille Lacs, Pine, Carlton, Cass, Hubbard, Itasca, St. Louis, Lake, Cook.
1973Fall Seen in nine counties.
1974Spring Early south 5-3 Henepin VL; 5-6 Stearns NMH; 5-10 Mower DS; early north 5-14 Pine ML; 5-18 Morrison LSR; 5-18 Becker TRS; 6 reports on 5-21.
1974Summer Reported from 14 counties south to Cottonwood and Washington.
1974Fall Late north 9-8 Clay FMAS; 9-20 Duluth JG, RBJ; late south 9-13 Hennepin WKE; 9-15 Rock KE.
1975Spring Early south 5-6 Blue Earth VR; 5-8 Hennepin VRL; 4 reports on 5-9; early north 5-9 Morrison LSR; 5-14 St. Louis JCG; 5-15 St. Louis GJN.
1975Summer Nested in St. Louis; also reported from Hubbard, Wadena, Cass, Aitkin, Mille Lacs, Carlton, Itasca, Lake and Cook.
1975Fallearly south 8-21 Hennepin VL; 8·22 Cottonwood LF; late north 9-15 Duluth JG; 9-30 Clay LCF; late south 9-13 Faribault RJ; 9-21 Hennepin WKE; 9-25 Goodhue CF.
1976Spring Early south 5-7 Hennepin OJ; 5-9 Freeborn DG; 5-10 Ramsey WL; early north 5-12 Crow Wing JB and Pine ML; 3 reports on 5-13.
1976Summernested in Cass; also reported from Roseau, Aitkin, Crow Wing, Mille Lacs, Carlton, Itasca, St. Louis, Lake and Cook.
1976Fall Early south 8-15 Ramsey, 8-19 Hennepin; late north 9-20 Cook and Duluth; late south 9-15 Washington, 9-20 Hennepin, 9-25 Blue Earth.
1977Spring Early south 5-5 Hennepin ES and Olmsted JF; 5-6 Blue Earth VR and Washington DGW; early north 4-25 Lake CNS; 3 reports on 5-10.
1977Summer Reported from 12 counties south to Anoka.
1977Fall Late south 10-31 Hennepin (LH).
1978Summer Seen in 18 counties as far south and west as Washington, Anoka, Grant (Pelican Lake, NMH), Becker (Tamarac NWR), Pennington (T153, R39) and Kittson.
1978Fall Early south 8-16 Washington DGW; late north 9-16 St. Louis RJ; late south 9-25 Houston EMF and 9-25 Anoka KL.
1979Spring Early south 5-1 Freeborn DG, 5-6 Carver TD, Mower RRK; early north 5-16 Becker SM, Itasca WL, St. Louis DA.
1979Summer Late migrants 6-1 Houston, Nicollet, Hennepin. Breeding reported from Lake; also seen in Cook, St. Louis, Carlton, Anoka (Carlos Avery, Cedar Creek), Stearns (Rockville, Grand Lake), Aitkin, Crow Wing, Cass, Itasca, Beltrami, Clearwater, Becker (Tamarack NWR), Marshall (Thief Lake WMA), Kittson.
1979Fall Late north 9-22 St. Louis JG, 9-23 Marshall KSS and St. Louis KMH; late south 9-29 Ramsey BL, 10.6 Olmsted JB.
1980Spring Early south 5-10 Murray RJ, 5-11 Fillmore RRK; early north 4-20 St. Louis J. Kotar, 5-1 Cook TB.
1980Summer Breeding reported from Lake, St. Louis, Carlton, Clearwater; also seen throughout the Northeast and North Central Regions plus Roseau, Becker, Clay (Bluestem Prairie), Douglas, Mille Lacs, Chisago, Anoka, Hennepin, Ramsey.
1980Fall Late north 9-20 Aitkin WN, Cass RJ, 9-21 St. Louis JG; late south 9-27 Hennepin SC, 10-25 Washington DS.
1981Spring Early south 5-3 Cottonwood LAF, Hennepin DB, ES, 5-5 Houston EMF, Hennepin VL, Mower RRK, Olmsted JF, Rice KJ, 5-6 Hennepin PF, Olmsted JSD, Wabasha DWM; early north 5-8 Clearwater JP, Crow Wing JB, 5-9 Itasca TL, Morrison DCF, 5-10 Beltrami AS.
1981Summer Breeding data from Lake, Clearwater. Seen in 16 other counties within range plus Houston (6-8, 7-24, Beaver Creek Valley SP, NMH).
1981Fall Late north 9-15 Itasca TL, Mille Lacs RJ, 9-19 St. Louis KE, LW; late south 9-21 Anoka JLH, Houston EMF, 9-25 Hennepin DB, 10-10 Ramsey KL.
1982Spring Early south 5-5 Hennepin DB, 5-7 Hennepin AB, SC, RJ, ES, 5-8 Hennepin OJ, Rice KJ; early north 5-10 Mille Lacs CFI KB, 5-11 Crow Wing JB, 5-14 St. Louis JG, LW.
1982Summer Breeding data from Clearwater. Seen in 20 other counties throughout range including Hennepin (6/8; ETS), Houston (6/4; E&MF).
1982Fall Late north 9/11 Crow Wing JB, 9/16 St. Louis LE, 9/20 Cook KMH; late south 9/16 Hennepin DB, Houston EMF, 9/17 Hennepin SC, 9/25 Houston FL.
1983Spring Early south 5/6 Anoka SC, Olmsted JF, 5/7 Fillmore RJ, Houston EMF, Martin KL, Mower RRK, 5/8 Brown JSp, Olmsted JEB, RE, Wabasha WDM; early north 5/7 Mille lacs MLWMA, 5/13 Cook KMH, 5/14 Beltrami AS, Clearwater AB, Mahnomen MHa, St. Louis AE.
1983Summer Breeding data from Lake, Mille Lacs, Clearwater. Also seen in Kittson, Beltrami, Itasca, Cass, Wadena, Crow Wing, Aitkin, St. Louis, Cook, Carlton, Isanti, Anoka, Hennepin, Ramsey (migrant?), DOUGLAS (singing male, Millerville Twp., DG).
1983Fall Late north 10/2 St. Louis MH; late south 10/1 Yellow Medicine RG, RJ, Redwood, Lyon RJ, Lyon HK, 10/3 Hennepin SC, Cottonwood LAF.
1984Spring 5/1 Scott HC, 5/11 Hennepin OJ, ES, SC, 5/12 DB, 5/12 Olmsted JEB, RE, Houston EMF; early north 5/9 St. Louis fide KE, 5/15 Cook KMH, St. Louis SNP, 5/16 MH, 5/16 Crow Wing JB.
1984Summernested in Cook and Crow Wing; also seen in 16 other counties.
1984Fall Late north 9/24 St. Louis TT, 9/28 Cook KMH; late south 9/24 Cottonwood LAF, 9/25 Dakota JD, 9/27 Hennepin SC, 10/9 Houston EMF.
1985Spring Early south 5/4 Mower RJ, 5/5 RRK, 51 Winter 1985 6 Hennepin SC, DBI, 5/7 Dakota TTu; early north St. Louis 5/2 AE, 5/9 SWI MS, Cook 5/9 KMH, 5/10 WP, 5/11 Becker MBW, 5/12 Polk AB, Roseau AJ.
1985Summer Probable nesting in Kanabec. Seen in 19 other counties within range west to Mar shall (Agassiz NWR), Becker and south to Scott, Dakota.
1985Fall Late north 9/15 Itasca AB, DB, 9/17 Otter Tail SDM, 9/27 Cook KMH; late south 9/22 Brown JS, 9/23 Houston EMF, 9/26 Hennepin SC.
1986Spring Early south 5/5 Hennepin DB, Washington SSt, 5/6 Hennepin RJ, SC, 5/7 Dakota, Washington JD, Olmsted PP, 5/8 Houston EMF, Lyon HK, Sherburne DOISS, Hennepin ES, GP, Olmsted RE; early north St. Louis 5/6 KE, 5/7 SWIMS, 5/10 AE, 5/10 Cook WP, Lake L W, SS Clay LCF, 5/11 Aitkin WN, Clearwater AB, Cook KMH.
1986Summer Probable nesting in Koochiching. Seen in 22 other counties throughout range but status of birds (migrant/ resident?) south of Anoka uncertain; 6/14 Ramsey, 7/25 Hennepin, 6/6 Dakota, 7/17 Houston.
1986Fall Early south 8/9 Anoka SC, 8/ II Ramsey KB, 8/15 Dakota TT; late north 9/11 Duluth SDM, 9/13 Cook KMH, 9/20 Lake SWIMS; late south 9/28 Houston EMF, 10/7 Hennepin ES.
1987Spring Early south 5/5 Hennepin KR, 5/7 Dakota TT, 5/9 Mower JM, Brown JS; early north 5/6 Marshall ANWR, 5/7 St. Louis AE.
1987Summer Late migrants: 6/3 Fillmore and Clay. Nested in Scott (Murphy-Hanrahan Park, Tfu; first report of nesting south of the Twin Cities in over 45 years). Also seen in 19 other counties throughout the range including Hennepin (6/11 ), Dakota (6/20).
1987Fall Late north 9/14 St. Louis MH/JS, 9/19 Itasca AB, 9/21 Cook KMH; late south 9/11 Dakota TT, 9/12 Houston EMF, 9/14 Fillmore ANO, 9/27 Hennepin SC.
1988Spring Early south 5/2 Mower JM, 5/3 Fillmore Winter 1988 NAO and Scott KR, 5/4 Dakota TT; early north 5/8 St. Louis AE, Aitkin WN and Carlton LW, 5/9 Cook WP.
1988Summer Nested in St. Louis; seen in 14 other northern counties plus Isanti, Anoka, Hennepin, Scott. Early migrant 7/11 Murray.
1988Fall Late north 9/3 Clearwater AB, 9/4 Lake DZ, 9/20 Clay LCF; late south 9/25 Wabasha AP, 9/29 Hennepin SC, 10/1 Fillmore NAO.
1989Spring Early south 5/6 Goodhue SC and GP, 5/7 Hennepin DZ, 5/9 Houston AP and Blue Earth MF; early north 5/11 Hubbard JL, 5/13 St. Louis SS, 5/18 Clay LCF and Cook WP.
1989Summer Fewer reports than in recent years. Nested in St. Louis; seen in 14 other counties as far south as a line from Becker to Anoka.
1989Fall Late north 9/2 Aitkin WN, Clearwater AB and St. Louis TW, 9/20 Cook KMH; late south 9/22 Anoka OP, 9/27 Hennepin SC, 10/10 Houston EMF.
1990Spring Early south 5/8 Anoka GP, 5/11 Olmsted JB, 5/12 Dakota JD, Fillmore NAO, Hennepin DC, RM, Mower RRK, JM, Scott AB, PS; early north 5/12 Koochiching GM, 5/13 Aitkin SC and St. Louis AE, 5/15 Carlton LW.
1990Summer Nested in Aitkin; probable nesting in St. Louis, Crow Wing. Seen in 11 other Northern counties plus Isanti, Chisago, Anoka.
1990Fall Late north 9/11 Lake DPV, 9/15 Becker MO, 9/26 Cook KMH; late south 9/21 Houston EMF, 9/23 Washington DS.
1991Spring Early south 5/6 Martin GS, 5/8 Murray ND; early north 5/9 Becker DEB and Clay LCF, 51 II Beltrami DJ, Hubbard JL and Lake SWIMS ; late south 5/27 Brown JS, 5/30 Hennepin DZ.
1991Summer Nested in Becker TNWR, Crow Wing. Seen in 17 other counties as far south as Sherburne, Anoka; plus migrants 6/1 Scott, 6/11 Mower.
1991Fall Late north 9/13 Roseau MO, 9/14 St. Louis KR, 10/1 Cook KMH; late south 9/16 Washington WL, 9/28 Hennepin TT.
1992Spring Early south 5/7 Hennepin SC and Mower RRK, 5/8 Olmsted JB, BSE and Winona CS; early north 5/9 Aitkin WN, Becker BBe, Beltrami DJ and St. Louis AE, 5/10 Kanabec CM, 5/11 Cook DPV; late south 5/26 Ramsey KB, 5/29 Brown JS.
1992Summer Nested in Becker, Crow Wing; probable nesting in Anoka. Seen in 16 additional northern counties plus Sherburne, Washington, 6/1 Hennepin, 6/2 Dakota.
1992Fall Early south 8/12 Rice TB, 8/16 Hennepin TT; late north 9/14 Lake DPV, 9/19 St. Louis RJ, KR, 9/29 Cook KMH; late south 9/17 Houston EMF and Rice TB, 9/29 Hennepin SC.
1993Spring Early south 5/6 Carver JD, Dakota DSm, Hennepin OJ, DZ, Olmsted JB, Ramsey DC and Rice TB, 5/7 Lyon HK. Early north 5/5 Becker BBe, 5/7 St. Louis AE, 5/8 Aitkin WN and Itasca TS. Late south 5/31 Freeborn DN.
1993Summer Probable breeding in Crow Wing. Seen in 11 additional northern counties as far west as Roseau, Otter Tail; plus Chisago, Anoka. Late migrants 6/2 Hennepin, 6/3 Nicollet, 6/5 Scott, 6/15 Nobles ND.
1993Fall Early south 8/4 Anoka KB, 8/16 Hennepin DBM. Late north 9/15 Kanabec CM, 9/26 St. Louis KB, TW, 9/30 Cook KMH. Late south 9/23 Brown JS, Hennepin DB, Ramsey TT, Rice TB and Winona CS, 10/10 Washington PC.
1994Spring Early south 5/8 Ramsey RH and Winona CS, 5/10 Hennepin SC, Mower RRK and Rice OR; early north 5/8 St. Louis ME/SK, 5/12 Aitkin WN, Becker BBe and Kanabec CM; late south 5/30 Anoka DN and Chisago TT.
1994Summer Nested in Crow Wing, Aitkin; probable breeding in Cass, Rice (adult feeding fledged young on 6/25 in Cannon River Wilderness Park; TB, GB). Seen in 13 additional northern counties plus Isanti, Chisago, Anoka.
1994Fall Early south 8/9 Anoka RH, 8/14 Brown JS. Late north 9/18 Aitkin WN, 9/25 Clay CF and Kanabec CM. Late south 9/25 Winona AM, CS, 9/27 Houston EMF.
1995Spring Early south 5/8 Hennepin TT and Rice TB, 5/9 Mower JM; early north 5/12 Cass MN, 5/13 Beltrami SM/CE, Carlton LW and Pennington SKS; late south 5/26 Brown JS, 5/29 Hennepin SC and Nicollet DN.
1995Summer Nested in Rice SK (Cannon R. Wilderness Park; most southerly nesting record for the state), Anoka KB; probable nesting in Crow Wing. Observed in 16 other northern counties plus Isanti, Sherburne, Hennepin, Dakota.
1995Fall Early south 8/19 Hennepin PBu, TT. Late north 9/20 Kanabec CM, 9/27 Aitkin CB, 10/7 (latest north date on record) Carlton LW. Late south 9/30 Anoka KB, 10/1 Hennepin SC, 10/7 Martin BBo.
1996Spring Early south 5/14 Rice TBo and Winona CS, 5/15 Mower RRK. Early north 5/14 St. Louis SW/MS, 5/18 Cass DaC fide MN and Pennington SKS.
1996Summer Probable nesting in Cass, Crow Wing; seen in 20 additional counties as far south and west as a line through Marshall, Stearns, Anoka.
1996Fall Early south 8/16 Hennepin SC, 8/22 Hennepin DBo, 8/23 Nicollet MF. Late north 9/21 Aitkin WN, 9/25 St. Louis AE, 10/5 (second latest north) Carlton LW. Late south 9/25 Hennepin TT and Houston EMF, 10/5 Big Stone SKS.
1997Spring Early south 5/8 Rice TBo, 5/9 Hennepin OJ, 5/11 Hennepin SC. Early north 5/17 Kanabec CM and Aitkin WN, 5/18 Wadena PBi.
1997Summer Observed in 19 counties as far west and south as a line through Kittson, Marshall, Wadena, Sherburne, Anoka; plus 6/1 Brown and Freeborn, 6/12 Ramsey, 6/18 Scott, 6/23 Rice (Cannon River Wilderness Park) TBo. Probable nesting in Lake.
1997Fall Late north 9/26 Cook MH, 9/28 Aitkin CB and St. Louis AE. Late south 9/21 Big Stone LE, 9/25 Hennepin SC, 10/7 Houston FL.
1998Spring Early south 5/3 Olmsted CK, 5/11 Freeborn ABa, 5/13 Hennepin SC. Early north 5/10 Becker BBe, 5/13 Cass EP and Carlton CB, LW.
1998Summer Observed in 21 counties as far west and south as Pennington, Otter Tail, Hennepin; plus late migrants 6/8 Rice, 6/9 Brown. Probable nesting in Aitkin, Lake.
1998Fall Late north 9/11 Clay RO, 9/12 Wadena PBi, 9/13 Carlton LW. Late south 9/16 Hennepin LE, 9/18 Houston RJ, 9/26 Brown JSp and Hennepin SC, TT.
1999Spring Arrived a few days earlier than usual south and north. Many south reports during early May. Early south 5/3 in Freeborn, Fillmore, Hennepin, Washington, then 5/4 Rice TBo. Early north 5/6 St. Louis AE, 5/8 Todd JSK, SDu and Kanabec CM. No south reports after 5/27 Rice TBo, but see summer report.
1999Summer Seen in 20 counties as far west and south as a line through Kittson, Becker, Todd, Anoka; plus 6/18 Rice (Cannon River Wilderness Park) TBo. New nesting record in Itasca JLi.
1999Fall Early migrants south 8/12 Hennepin DBo, 8/14 Hennepin SC, TT, 8/15 Rice TBo. Late north 9/18 Kanabec CM, 9/19 St. Louis SWe, 10/19 (banded at HRNR, the latest date north by 12 days!) St. Louis DG. Late south 9/25 Houston MFo, 9/28 Hennepin SC, 10/9 Hennepin TT.
2000Spring Seen in 20 south and 20 north counties. Early south (recent median 5/6) 5/3 in two counties, then 5/4, 5/6. Early north (median 5/9) 5/4 Morrison WB, 5/6 in four counties.
2000Summer Reported in 22 counties as far west and south as a line through Kittson, Stearns, Dakota. Noted to be perhaps the most abundant neotropical migrant at Cedar Creek Natural History Area in Anoka Co. JLH; new nesting record in Todd JSK.
2000Fall Early south 8/6 Anoka DFJ. Peak migration from 8/13 through 9/14. Late north 9/24 Clay RHO, 10/10 (second latest north) Carlton LAW. Last reported south 9/27 Blue Earth LWF, 10/1 Hennepin CMM.
2001Spring Seen in 31 south and 22 north counties. Early south 4/29 (record early) Fillmore NBO, 4/30 Dakota, Hennepin, Scott, Olmsted. Early north (median 5/9) 5/4 Carlton LAW, 5/5 St. Louis ALE, 5/6 Aitkin WEN.
2001Summer Record high number of reports. Observed in 23 counties as far west and south as a line through Kittson, Polk, Becker, Morrison, Hennepin, Dakota; plus 6/1 Olmsted, 6/2 Scott, 6/3 Goodhue and Wabasha NRRI, 6/4 Steele NFT and Winona NRRI.
2001Fall Early south 8/10 Steele MJF, 8/11 Hennepin SLC. High count 9/10 Hennepin (14) ChM. Late north 9/19 St. Louis ALE, 9/22 Carlton LAW and Lake JJS. Late south 9/22 in three counties, 9/25 Hennepin SLC.
2002Spring Reported from 32 south and 20 north counties. Early south 5/4 Freeborn AEB, Hennepin OLJ, SLC and Rice TFB, 5/5–6 in six counties. Early north 5/11 Carlton LAW, 5/15 in six counties. High counts 5/15 Mille Lacs L. (43) KJB, 5/25 Anoka (34 at Rice Creek) KJB.
2002Summer Found in 21 counties as far west and south as a line through Lake of the Woods, Todd, Stearns, Anoka; plus 6/6 Dakota ADS, 6/15 Scott ADS.
2002Fall Late north 9/25 Lake JWL, 9/27 St. Louis CRM. Late south 10/2 Rice TFB, 10/3 Hennepin ChM.
2003Spring Arrived with two days of recent medians. Early south 5/4 Hennepin SLC, 5/7 Fillmore NBO and Freeborn AEB. Early north 5/8 Cass JWL, 5/10 Morrison, Otter Tail, Todd.
2003Summer Reported in 24 counties as far west and south as a line through Polk, Becker, Sherburne, Anoka, Washington; plus Scott and Dakota (4 territorial males at Murphy-Hanrehan P.R., new nesting record in Dakota BAF). Late migrants 6/1 Pipestone KRE, 6/6 Freeborn AEB.
2003Fall Total of 48 reports from 11 north and 17 south counties in all regions except Southwest. Highest reported count 9/15 St. Louis (100 at Park Point, Duluth — ties record-high count, 20 seen simultaneously) SCB, PHS. Late north 9/25 Cass EO, 10/1 Lake JWL. Late south 9/22 Rice DAB, 9/29 Hennepin SLC.
2004Spring Early south 5/7 Rice DAB, TFB, then nine additional counties on 5/8 (median 5/5). Early north 5/1 Hubbard MAW, 5/9 Wadena PJB, then seven more counties 5/11–12 (median 5/8). Late south 5/26 Murray NED, 5/27 Hennepin SLC and Washington TEB.
2004Summer Tied with 2001 for most reports ever: seen in 29 counties in all parts of state except southern regions.
2004Fall Found in 17 north and 14 south counties. Early south 8/15 Stearns (adult with fledged juvenile) KRE, 8/19 Hennepin ChM. Late north 9/23 Clay RHO, 9/24 St. Louis LAW, 10/1 Lake JWL. Late south 9/25 Dakota SWe, 9/28 Anoka REH.
2005Spring Found in all regions. Early birds arrived within one day of recent medians. Early south 5/6 Steele NFT, 5/7 Dakota ADS, 5/8 in five more counties. Early north 5/7 Beltrami PBD, 5/8 St. Louis SES.
2005Summer Reported from 26 counties north and east of a line from Marshall through Carver, Scott, Dakota, plus 7/16 Le Sueur BJU. Same number of territories (5) as in recent years at Murphy-Hanrehan P.R., Scott/Dakota BAF.
2005Fall High counts 8/3 Lake (20) CJT and 9/2 Rice (13) DAB. Early south (away from Sherburne) 8/11 Lac qui Parle BJU. Late north 9/22 St. Louis LAW, 9/26 Mille Lacs ASc (median 9/27). Late south 9/21 Olmsted LAV, 9/24 Fillmore NBO, 10/5 Hennepin DWK (median 10/1).
2006Spring Found in 22 north and 32 south counties, representing all regions. Early south 5/6 Olmsted JWH, Rice DAB and Sherburne ASc, then 5/7 in three more counties. Early north 5/7 Otter Tail JMP, 5/8 Aitkin KCR, 5/10 Cook and St. Louis. High count 5/29 St. Louis (25) TPW. Late south 5/29 Dakota SWe, 5/30 Chisago AKe.
2006Summer Reported from 29 counties in central and northern regions.
2006Fall Early south (away from known breeding areas) 8/13 Dakota ADS (median 8/12). High counts 8/18 Mille Lacs (15) ASc, 8/21 Anoka (30) DWK. Late north 9/24 Pine JMP, 10/15 (second latest north) St. Louis JRN (median 9/27). Late south 10/4 Hennepin CMB, 10/5 Yellow Medicine BJU (median 10/1).
2007Spring2032 Early south 5/3 Big Stone RBW, 5/5 Faribault WAF and Rice TFB (median 5/6). Early north 5/5 Mille Lacs ASc, 5/6 Carlton LAW, 5/8 Kanabec CAM (median 5/8). High count 5/31 St. Louis (45) PHS. Late south (away from known breeding locations, also see summer report) 5/27 Pipestone CRM, JCC, LS, RTH (median 6/4).
2007Summer218 Reported north and east of a line from Marshall to Scott, plus Redwood. First county breeding records for Washington AXH, Sherburne PLJ.
2007Fall1532 Early south away from known breeding locations 8/3, 8/5 Blue Earth ChH, 8/8 Jackson KJB. High counts 8/26 Anoka (20) DWK, 8/24 Rice (18) DAB. Late north 9/19 Mille Lacs ASc, St. Louis PHS, 9/22 St. Louis MCA (median 9/28). Late south 9/21 Washington LMS, Yellow Medicine RBW, 9/23 Hennepin BAF, 10/3 Ramsey BRL (median 10/1).
2008Spring2735 Early south (median 5/6) 5/2 Rice TFB, 5/3 Mower ARW, JWH, 5/6 Dakota JLO. Early north (median 5/8) 5/13 Wadena PJB. High counts 5/13 Scott (24, Murphy-Hanrehan P.R.) DWK, 5/30 St. Louis (22) PHS.
2008Summer1911 Most reports ever. Observed in all regions except West-central, Southwest, Southeast.
2008Fall1928 High counts 9/12 Hennepin (18) CMB, 9/12 St. Louis (12) PHS. Late north 9/21 St. Louis ABL, 9/25 St. Louis DMF, 9/28 Otter Tail SPM (median 9/28). Late south 9/27 Stearns MJB, 9/28 Waseca DAB, RMD, JWH, 10/4 Chisago LS (median 10/1).
2009Spring2629 Early south (median 5/6) 5/6 Meeker DMF, 5/7 Benton RBJ, DAC, Sherburne ASc, Winona ANy. Early north (median 5/8) 5/9 Aitkin KCR, 5/11 Morrison RBJ, 5/13 Todd MSK. High counts 5/16 Benton (20) MJB, 5/18 Cass (12) BAW.
2009Summer236 Reported from all northern and central regions. All south reports: Stearns, Benton, Sherburne, Anoka, Chisago, Scott (territorial male at Murphy-Hanrehan P.R., BAF).
2009Fall2028 High count 8/23 Anoka (12, Linwood Lake) DWK. Late north 9/22 Mille Lacs ASc, 9/26 Crow Wing (2) JSB, Kanabec RBW (median 9/27). Late south 9/26 Carver JCy, 9/28 Fillmore NBO, 10/4 Hennepin SLC (median 10/1).
2010Spring2526 Early south (median 5/6) 4/30 Winona ASM, 5/8 Lac qui Parle BJU, Stearns (Collegeville) RPR. Early north (median 5/8) 5/7 Mille Lacs ASc, 5/12 Cass ABi, Otter Tail fide JMJ. High counts 5/24 St. Louis (90, Park Point, from Southworth marsh to near the end of the point) DWK, 5/25 St. Louis (15, Park Point) PHS.
2010Summer249 Reported from all northern and central regions.
2010Fall1832 High counts 8/22 Carver (9, Carver P.R.) JCy. Late north 9/16 Mille Lacs (Mille Lacs Kathio S.P.) BTo, JuC, 9/19 St. Louis (Park Point) IHu (median 9/28). Late south 9/27 Hennepin SLC, 9/29 Steele (Saco Farm Woods & Fields) PSu, 10/1 Washington LMS (median 10/2).
2011Spring3147 Early south (median 5/6) 5/5 Hennepin RTe, eight additional counties on 5/7. Early north (median 5/8) 5/10 Aitkin RBJ, DAC, Kanabec RAE, Todd JeM, and three more counties 5/11. Season high counts 5/23 St. Louis (30, Park Point R.A., Duluth) PHS, 5/22 St. Louis (20, Park Point R.A.) JLK. Late south (away from known summer breeding locations) 5/30 Hennepin SLC, DDO. Also see summer report.
2011Summer277Found in all northern and central regions plus Blue Earth. First county breeding records for Lake of the Woods BWa, Morrison fide BBA. High count 6/15 St. Louis (30, Echo Trail) AJo, BWi.
2011Fall2632 High count 9/6 Anoka (16, Linwood Lake) SBM. Late north 9/22 Crow Wing (Agate Lake) JSB, 9/24 St. Louis SHF, 9/25 Crow Wing (Pelican Lakes Conservation Club) ABi, (2, Pointen Lake) JLK (median 9/28). Late south 9/27–28 Hennepin (Westwood N.C.) DWK, ACr, SLC, Rice TFB, 9/30 Yellow Medicine JEB (median 10/2).
2012Spring2643 Early south (median 5/6) 5/3 Hennepin JSI, Mower RJW, RWa, Olmsted JWH, Ramsey RZi, Rice TFB, Winona ANy, 5/4 four more counties. Early north (median 5/8) 5/5 Cass DAY, Todd (3) JLK, 5/6 Beltrami DPJ, Pine PSe. High count 5/12 Itasca (16, Splithand Lake) JLK.
2012Summer2711 Found in all regions except Southwest, South-central. High count 6/4 Aitkin (13, near McGregor) DBr. First county breeding records for Goodhue fide BBA, Kanabec DPG.
2012Fall2541 High count 8/26 Carver (11, Rapids Lake Unit) JCy. Late north 9/21 St. Louis (2, Lakewood) KJB, 9/22 St. Louis (Southworth Marsh) DWK, SBM, (Hartley Park) JLK, 9/23 Itasca PLe (median 9/28). Late south 9/23 Lyon GWe, Winona RMD, 9/25 Hennepin CMB, 9/27 Carver JCy, Hennepin TAT, CMB, 9/28 Hennepin CMB (median 10/2).
2013Spring2746 Early south (median 5/6) 5/7 Hennepin GJa, 5/8 Faribault WAF, Goodhue GJM, Hennepin AdJ, Ramsey COl, Rice DAB, GHo, plus seven counties on 5/9. Early north (median 5/8) 4/29 Morrison MRN, 5/10 Norman RAE, 5/11 Hubbard MAW, 5/13 Becker ASM. Season high counts all from Park Point R.A. and adjacent Southworth Marsh in St. Louis: 5/21 (40) KJB, 5/30 (40) PHS.
2013Summer2617 Found in every region except Southwest.
2013Fall2429 High counts 9/1 Hennepin (6) HCT, 9/1 Nicollet (6) WCM. Late north 9/29 Koochiching AMe, 9/30 Cook PRH, 10/1 Cook PRH (median 9/28). Late south 9/22 Ramsey RZi, DPa, 9/24 Lac qui Parle DLP, 9/27 Hennepin DPa, 10/7 Washington LMS (median 10/2).
2014Spring2541Early south (median 5/6) 5/3 Lyon RJS, 5/5 Rice TFB, 5/6 Olmsted KeA, Ramsey FKB, SWl, Stearns RAE plus 11 counties on 5/7. Early north (median 5/8) 5/7 and 5/8 Cass BAW, 5/10 Morrison MEm. High counts 5/30 St. Louis (30) JMr, 5/19 Rice (26) DAB, 5/26 Cass (22) ABi. Late south 5/29 Carver REH, Sherburne DAd, PNi, 5/30 Scott TBa, RGa (median 6/3), but see summer report for potential breeding activity.
2014Summer2610Found in all northern and central regions plus Goodhue.
2014Fall2638 High counts 8/12 St. Louis (14, Hawk Ridge/Lester River Census) KJB, 9/1 Anoka (14) SBM. Late north 9/26 St. Louis BHo, 9/29 Carlton AVa, 10/4 Lake JWL (median 9/28). Late south 10/1 Hennepin ACr, McLeod HHD, 10/2 Hennepin CMB, McLeod PRH, Ramsey KMS, CRM (median 10/2).
2015Spring2948 Early south (median 5/6) 5/4 Hennepin DEv, then from nine additional counties on 5/6. Early north (median 5/8) 5/7 Cass BJq, Crow Wing ABi, JPR, Pine BDo, 5/8 Hubbard MAW. High count 5/18 St. Louis (187, more than double the prior northbound high count) KJB. Late south 5/30 Carver WRe, MRe, Hennepin CMB, Sherburne JlB, ABm, JLK (median 6/3), but see summer report for potential breeding activity.
2015Summer2810 Found in all northern and central regions.
2015Fall2740 High counts 9/1 St. Louis (31, Hawk Ridge/Lester River Census) KJB, 8/18 Carver (18, Minnesota Landscape Arboretum) JCy, 8/28 Hennepin (15) CMB. Late north 9/26 St. Louis HHD, JLK, 10/3 Itasca PLe (median 9/28). Late south 10/1 Dakota ADS, 10/2 Steele PSu, 10/7 Dakota ADS (median 10/2).
2016Spring3148 Record early south (median 5/6) 4/25 Hennepin (Plymouth) TDv, 5/6 Faribault WAF, Scott ECg, ARn. Early north (median 5/8) 5/10 Cass DAY, 5/11 Pine SC, St. Louis JLK. High counts 5/30 St. Louis (23) JLK, 5/23 St. Louis (21) JLK, 5/27 St. Louis (20) DBa, BBa, RBk.
2016Summer2811 Found in all northern and central regions. High count 6/11 St. Louis (21, Comstock Lake Rd.) GCl.
2016Fall2937 High counts 8/20 Hennepin (25, Veterans Memorial Park, Richfield) SBM, 8/30 Washington (20, Afton S.P.) KvM, PNi. Late north 9/27 St. Louis JLK, 9/30 Itasca PLe, 10/6 St. Louis (Hawk Ridge/Lester River Census) KJB (median 9/29). Late south 9/25 Carver WCM, Hennepin CMB, PRH, Ramsey BAb, Rice DAT, 9/30 Carver JCy (median 10/3).
2017Spring3042 Early south (median 5/5) 5/3 Meeker BNn, BNn, 5/6 Dakota LiH, Hennepin SDz. Early north (median 5/7) 5/8 Otter Tail JsS, 5/10 Cass DAY, 5/11 Crow Wing KMa, ABi, Hubbard REn. High counts 5/19 Carlton (25, Jay Cooke S.P.) MRs, CHb, 5/17 Beltrami (21, Lake Bemidji S.P.) KCo.
2017Summer3010 Reported from all northern and central regions plus Murray. High count 6/6 Lake (Split Rock S.P.) GaJ.
2017Fall2842 High counts 8/20 Carver (14, Minnesota Landscape Arboretum) JCy, 9/12 St. Louis (12) H.R.B.O., 8/22 St. Louis (11, Hartley Park) JLK. Late north 9/28 St. Louis TRd, 9/30 Itasca PLe (median 9/28). Late south 9/28 Scott GLa, 9/29 Hennepin SKS, 9/30 Rice TFB (median 10/3).
2018Spring3247 Early south (median 5/4) 5/2 Chisago DPi, 5/3 Hennepin ebd, 5/5 Sherburne ebd. Early north (median 5/7) 5/8 Pine KrM, SBE, 5/9 Crow Wing JhH, JLK, 5/10 Pine LEv, 5/11 Crow Wing LoM, Morrison FGo. High counts 5/27 St. Louis (24, H.R.N.R.) JLK, 5/9 Washington (20, Riverside Park) GJa, DnS.
2018Summer2514 Reported from all northern and central regions. First county breeding record 6/21 Kandiyohi BWF.
2018Fall3146 High counts 8/27 Houston (25, Beaver Creek Valley S.P.) ToM, 9/3 Ramsey (25, Wilkinson Lake) LiH, 9/18 Washington (24, Afton S.P.) PNi, 9/8 Freeborn (16) ebd. Late north 10/4 St. Louis EFC, RyS, 10/16 Clearwater DMz, DMz (median 9/30). Late south 10/4 Hennepin CMB, 10/6 Faribault DWK (median 10/3).
2019Spring3050 Early south (median 5/4) 5/3 Sherburne LKo, MKo, 5/4 Scott FAz, TSk, BrT, Stearns MKo, LKo, Washington ebd. Early north (median 5/7) 5/11 Todd AaL, JLK, TLu, 5/14 Crow Wing ABi, Lake ebd, Pine KrM, LEv, St. Louis ebd. High counts 5/25 St. Louis (40, Park Point R.A.) REn, EzH, AxB.
2019Summer2718 Found in all regions except Southwest. Intriguing report from its historic breeding range of a pair, with male carrying food 6/18 Fillmore (Rushford Sand Barrens S.N.A) †EzH, ph. ASu. High count 6/23 Cook (20, South Brule & Lima Grade roads) ASu, JSu.
2019Fall2845 High counts 9/8 Carver (14, Carver P.R., Grimm Rd.) JCy, 8/31 Anoka (12, Linwood Lake) ebd, 8/11 Hubbard (11, Itasca S.P. Visitors Center) MO, 9/7 Hennepin (11, Nine Mile Creek) MZa. Late north 9/27 St. Louis H.R.B.O., 10/9 St. Louis JLK, 10/14 Lake ABm (median 9/30). Late south 10/5 Hennepin (Hagemeister Pond Preserve Park) ACr, (Crow-Hassan P.R.) JuW, 10/11 Mower DWK, KRE, RZi, 10/19 Hennepin (Wirth Park) †HCT (median 10/3).
2020Spring3152 Early south (median 5/4) 4/28 Cottonwood KEm, Hennepin KvM, 5/2 Steele ebd, 5/3 Ramsey LiH, Rice ebd. Early north (median 5/8) 5/9 Pine KrM, 5/13 St. Louis ebd, and also in Carlton, Crow Wing, Itasca, Morrison on 5/14. High counts 5/26 St. Louis (25, Park Point R.A.) JfD, 5/28 St. Louis (22, Western Waterfront Trail) ebd, 5/15 Hennepin (20, Minnesota Valley N.W.R., Bass Ponds) LKt.
2020Summer2714 Reported from every region except Southwest. Southeast of normal breeding range were up to 3 singing males maintaining territories through 7/1 Olmsted (Chester Woods) LAV, m.ob. Late spring migrants 6/5 Goodhue RZi, Freeborn ebd. High counts 6/23 Koochiching (62, Fiero Road, 4.9 miles surveyed by foot in 10.5 hrs) JbS, ebd, 6/3 Carlton (22, Ditchbank Road) ASu.
2020Fall3142 Recorded statewide; fewest reports from the Southwest. Highest fall count and second highest in Minnesota 8/23 St. Louis (100, Park Point R.A.) PHS. Also noteworthy tally 9/4 St. Louis (30, Brighton Beach) HTo. Late north 9/28 Pine ebd, St. Louis PAl, ebd, 10/7 Cook JBs (median 9/30). Late south 10/3 Wabasha ebd, 10/4 Steele DWK, 10/11 Hennepin (Mississippi Gorge R.P.) †DCZ (median 10/3).
2021Spring3250 Found in all but five counties. Early south (median 5/3) 5/1 Goodhue PEJ, 5/2 Carver JCy, Hennepin RBW. Early north (median 5/8) 5/1 Pine RBJ, 5/5 St. Louis ebd, 5/7 Hubbard REn, RLF. High counts 5/22 St. Louis (52, Fox Farm Rd.) MLH, 5/29 Lake (40, Gooseberry Falls S.P.) ebd, 5/17 St. Louis (32, Park Point R.A.) TRK, HTo, RyS.
2021Summer3016 Detected in all northern and central regions plus 7/8 Lyon NMe, 6/7 Rice (2) TFB. High count 6/6 St. Louis (30, Sax-Zim Bog) ebd, ASu.
2021Fall2949 Found in the majority of counties in every region. High counts 9/15 St. Louis (23, Brighton Beach) IDv, 8/15 Ramsey (18, Sucker Lake) GrN, 8/26 Houston (15, Beaver Creek Valley S.P.) ToM. Late north 9/30 Todd JLK, 10/2–3 St. Louis (two locations) FJN, JLK (median 10/1). Late south 10/2–4 Hennepin (three locations) GrS, JCa, ebd, MyP, HPe, CWB (median 10/3).
 
 Breeds north, central, and east-central. Migrant throughout.

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.