MOURC Proceedings Archive - Warblers Accepted
Duplicates
This is the 1981 to present Records Committee Proceedings archive for
The Loon, journal of the Minnesota Ornithologists' Union.
The last 2 years are available to MOU members.
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Proceedings
Species: Warblers
Ovenbird
Worm-eating Warbler
Louisiana Waterthrush
Northern Waterthrush
Blue-winged Warbler
[Brewster's Warbler]
Prothonotary Warbler
Swainson's Warbler
Tennessee Warbler
Orange-crowned Warbler
Connecticut Warbler
MacGillivray's Warbler
Kentucky Warbler
Hooded Warbler
Kirtland's Warbler
Cape May Warbler
Yellow Warbler
Blackpoll Warbler
Black-throated Blue Warbler
Pine Warbler
Yellow-throated Warbler
Prairie Warbler
Black-throated Gray Warbler
Townsend's Warbler
Hermit Warbler
Canada Warbler
Wilson's Warbler
Painted Redstart

Worm-eating Warbler (C) (Helmitheros vermivorum)Start Date 1988-01-01
RefFirstLastLocationCounty23CommentStatus
1:0MOU1944-05-23OlmstedThe Loon 52:33Accepted
2:0MOU1949-05-22Robert's SanctuaryHennepinThe Loon 21:57Accepted
3:0MOU1953-05-07MadisonLac qui ParleBell Museum files, record by Mrs. C.E. PetersonAccepted
4:0MOU1957-05-111957-05-13near LondonKandiyohiThe Loon 29:36Accepted
5:0MOU1957-05-21St. ThomasHennepinThe Loon 29:36Accepted
30:731958indexWorm-eating Warbler Seen on Benilde High School Grounds
6:0MOU1958-05-01St. Louis ParkHennepinThe Flicker 30:73Accepted
31:621959indexWorm-eating Warbler Again Seen in Minneapolis Area
7:0MOU1959-05-03Theodore Wirth ParkHennepinThe Loon 31:62Accepted
34:651962indexWorm-eating Warbler in Hennepin County, Minnesota
8:0MOU1962-04-271962-04-30Brooklyn ParkHennepinThe Loon 34:56, 34:65Accepted
35:1031963indexObservations of the Worm-eating Warbler
9:0MOU1963-05-051963-05-08Robert's SanctuaryHennepinThe Loon 35:57, 35:103Accepted
10:0MOU1967-05-13Theodore Wirth ParkHennepinThe Loon 39:95Accepted
41:89-901969indexWorm-eating Warbler Seen
11:0MOU1969-04-30Sunfish LakeDakotaPhotos in Bell Museum filesAccepted
12:0MOU1969-05-18Camp WilderWashingtonThe Loon 41:90Accepted
13:0MOU1973-08-26Robert's SanctuaryHennepinThe Loon 46:172Accepted
14:0MOU1973-11-18GarrisonCrow WingThe Loon 46:35Accepted
46:35-361974indexAn Unusual Minnesota Observation
46:1221974indexWorm-eating Warbler at Wood Lake Nature Center
46:172-1731974indexFall Worm-eating Warbler
MOU1974-04-27RichfieldHennepinThe Loon 46:155Rejected
MOU1974-04-27RichfieldHennepinThe Loon 46:155Rejected
15:0MOU1974-04-27RichfieldHennepinThe Loon 46:122Accepted
47:1351975indexWorm-eating Warbler at Roberts Sanctuary
16:0MOU1975-05-18Robert's SanctuaryHennepinThe Loon 47:135Accepted
17:0MOU1975-11-15Boy LakeCassThe Loon 48:38Accepted
48:381976indexWorm-eating Warbler Observation
MOU1976-11-11Hawk RidgeSaint LouisThe Loon 49:45Recirculated
57:1191976-11-11DuluthSt. Louis(vote 4-3, with 5-2 required for Acceptance). This 1976 record, which was originally accepted on a 5-1 vote and published (The Loon 49:45), was reconsidered and found unacceptable. The identification was based entirely on "black stripes on the head . . . small, buffy brown bird . . . habit of walking along the low branches of the alders," and, while it was agreed the identification may well have been correct, it was felt by some that more extensive details should have been provided for such a highly unusual record . The most serious omission was an indication of its being a warbler in the first place, rather than a sparrow or something else. Not Accepted
49:451977indexWorm-eating Warbler at Hawk Ridge
50:2131978indexWorm-eating Warbler at Austin
18:0MOU1978-05-171978-05-18Hormel Nature CenterMowerThe Loon 50:213Accepted
51:1061979indexWorm-eating Warbler Observation
51:1551979indexWorm-eating Warbler -- Otter Tail County
19:0MOU1979-05-05Theodore Wirth ParkHennepinThe Loon 51:106Accepted
20:0MOU1979-05-07Robert's SanctuaryHennepinThe Loon 51:154Accepted
21:0MOU1979-05-20Fergus FallsOtter TailThe Loon 51:155Accepted
22:0MOU1980-05-30RamseyThe Loon 63:169 (specimen)Accepted
53:1721981indexWorm-eating Warbler at Austin
23:053:1291981-05-05AustinMower(vote 6-1, Loon 53:172) Accepted
24:0MOU1982-05-071982-05-09Wood Lake Nature CenterHennepinThe Loon 54:234Accepted
25:0MOU1982-05-19T.S. Roberts SanctuaryHennepinThe Loon 54:234Accepted
55:1261983indexWorm-eating Warbler in Brown and Blue Earth Counties
26:056:171983-05-11Flandrau State ParkBrown(vote 7-0; Loon 55:126). Accepted
27:056:171983-05-17Minneopa State ParkBlue Earth(vote 7-0; Loon 55: 126). Accepted
56:171983-08-12Potato LakeHubbard(vote 0-7) The relatively inexperienced observer's description was: "plain olive back, no wing bar, plain whitish breast, white eye line with black stripes above and below"; however, such details also fit Red-eyed Vireo. Not Accepted
56:193-1941984indexWorm-eating Warbler in Waseca County
28:0MOU1984-04-29CottonwoodThe Loon 56:257Accepted
29:056:1601984-05-08Courthouse ParkWaseca(vote 7-0 The Loon 56:193-194). Accepted
57:1081985indexWorm-eating Warbler at Austin
57:142-1431985indexWorm-eating Warbler -- Olmsted County
30:057:1191985-05-04Austin Mower(vote 7-0; The Loon 57:108) . Accepted
58:421985-05-24near RochesterOlmsted (vote 6-1; The Loon 58:l42-143) . Recirculated
64:1381985-05-24RochesterOlmsted(vote 2-5); previously voted on, accepted and published (The Loon 57:142-143). The entire description .--------------------------only mentioned "an unstreaked breast, black eyestripe and light eye-brow", and that the bird had a song "similar to a Chipping Sparrow". While it is possible the bird was correctly identified, the documentation submitted still does not preclude Chipping Sparrow. Not Accepted
58:1331986indexWorm-eating Warblers in Fillmore County
58:1391986indexWorm-eating Warbler in LeSueur County
31:059:571986-05-08near Kasota Le Sueur(vote 7-0; The Loon 58:139). Accepted
32:058:1461986-05-11Forestville Twp.Fillmore(vote 7-0; The Loon 58:133). Accepted
33:058:1461986-05-22Pilot Mound Twp.Fillmore(vote 7-0; The .Loon 58:133). Accepted
60:931988indexWorm-eating Warbler in Mower County
60:1781988indexWorm-eating Warbler at Crosby Park
34:1MOU1988-05-041988-05-08Hormel Nature CenterMowerThe Loon 60:168 The Loon 60:93Accepted
avian
information
1988-05-041988-05-08Mower5/4, 8 Mower (second state record) (first county record)
Three reports: 5/4 Mower RRK, 5/4 Ramsey AB (The Loon 60:179), 5/8 Mower RG (The Loon 60:93).
35:260:1081988-05-04St. PaulRamsey(vote 7-0). The Loon 60:178Accepted
avian
information
1988-05-04Ramsey5/4 Ramsey (third state record) (first county record)
Three reports: 5/4 Mower RRK, 5/4 Ramsey AB (The Loon 60:179), 5/8 Mower RG (The Loon 60:93).
MOU1988-05-08Frontenac areaGoodhueThe Loon 60:93Rejected
avian
information
1988-05-081988-05-10Goodhue5/8-10 Goodhue (first state record) (first county record)
Three reports: 5/4 Mower RRK, 5/4 Ramsey AB (The Loon 60:179), 5/8 Mower RG (The Loon 60:93).
36:360:1081988-05-08AustinMower(vote 7-0; The Loon 60:93). Accepted
62:1181990indexWorm-eating Warbler in Rice County
37:462:1341990-04-30Sakatah Lake S.P.Rice(vote 7-0; The Loon 62:118) . Accepted
avian
information
1990-04-30Rice4/30 Rice (fourth state record) (first county record)
4130 Rice WS (The Loon 62:118).
63:2031991indexWorm-eating Warbler in Minneapolis
63:2081991indexWorm-eating Warbler in Watonwan County
38:563:1541991-05-11Eagle's Nest Co. ParkWatonwan(vote 7-0; The Loon 63:208). Accepted
avian
information
1991-05-11Watonwan5/11 Watonwan (fifth state record) (first county record)
Two reports: 5/ 11 Watonwan RJ, RG (The Loon 63:208), 5118 Hennepin SC (The Loon 63:203).
39:663:1541991-05-18MinneapolisHennepin(vote 7-0; The Loon 63:201). Accepted
64:1661992indexWorm-eating Warbler in Washington County
64:170-1711992indexWorm-eating Warbler in Hennepin County
64:1711992indexWorm-eating Warbler in Rice County
40:764:1381992-05-09Rice Lake S.P.Steele(vote 6-1). Accepted
avian
information
1992-05-09Steele5/9 Steele (seventh state record) (first county record)
All reports: 5/9 Steele KV, 5/11 Hennepin SC (The Loon 64:170–171), 5/12–17 Rice TB (The Loon 64:171), 5/12 Washington EC (The Loon 64:166).
41:864:1381992-05-11MinneapolisHennepin(vote 7-0). Accepted
42:964:1381992-05-12FaribaultRice(vote 7-0). Accepted
avian
information
1992-05-121992-05-17Rice5/12-17 Rice (sixth state record) (second county record)
All reports: 5/9 Steele KV, 5/11 Hennepin SC (The Loon 64:170–171), 5/12–17 Rice TB (The Loon 64:171), 5/12 Washington EC (The Loon 64:166).
43:1065:331992-05-12Warner Nature CenterWashington(vote 7-0; The Loon 64: 166). Accepted
avian
information
1992-05-12Washington5/12 Washington (eighth state record) (first county record)
All reports: 5/9 Steele KV, 5/11 Hennepin SC (The Loon 64:170–171), 5/12–17 Rice TB (The Loon 64:171), 5/12 Washington EC (The Loon 64:166).
44:1165:331992-10-01Olson LakeWashington(vote 5-2). Accepted
MOU1992-10-01WashingtonThe Loon 65:80Duplicate
avian
information
1992-10-01Washington10/1 Washington (ninth state record) (second county record)
One report: 10/1 Washington DS.
65:941993indexWorm-eating Warbler in Washington County
45:12MOU1993-05-08MVNWR Hq.HennepinThe Loon 65:191Accepted
46:13MOU1993-05-09Afton SPWashingtonThe Loon 65:191Accepted
avian
information
1993-05-09Washington5/9 Washington (tenth state record) (third county record)
Reported 5/8 Hennepin TT, 5/9 Washington DN.
47:14MOU1994-05-14MVNWR Hq.HennepinThe Loon 66:189Accepted
48:15MOU1995-05-10Theodore Wirth ParkHennepinThe Loon 67:227Accepted
49:16MOU1995-05-15Wood Lake Nature CenterHennepinThe Loon 67:227Accepted
50:17MOU1997-05-271997-05-30St. PaulRamseyThe Loon 69:205Accepted
avian
information
1997-05-271997-05-31Ramsey5/27-30, 31 Ramsey (eleventh state record) (second county record)
Only documented report: 5/27–30 (latest date on record) Ramsey JWe, mob.
51:18MOU1998-06-02Seven Mile Creek County ParkNicolletThe Loon 71:30Accepted
avian
information
1998-06-02Nicollet6/2 Nicollet (twelfth state record) (first county record)
First summer record for this species in the state. Single male singing on 6/2 at Seven Mile Creek County Park in Nicollet PB, AH.
52:19MOU1999-05-021999-05-03Bergquist Nature AreaKandiyohiThe Loon 71:209Accepted
avian
information
1999-05-021999-05-08Kandiyohi5/2-3, 8 Kandiyohi (thirteenth state record) (first county record)
Like the other “southern” warblers, more reports than usual. All records: 5/2–3 Kandiyohi (near Willmar) RJF, 5/8 Kandi-yohi (Sibley S. P.) RE, 5/9–12 Winona (Whitewater S. P.) mob, 5/29 Mower (Hormel Nature Center) AH, 5/31 (second latest south) Wabasha (Co. Rd. 29) PS.
53:20MOU1999-05-08Sibley SPKandiyohiThe Loon 71:209Accepted
54:21MOU1999-05-091999-05-12Whitewater SPWinonaThe Loon 71:209Accepted
avian
information
1999-05-09Winona5/9 Winona (first county record)
Like the other “southern” warblers, more reports than usual. All records: 5/2–3 Kandiyohi (near Willmar) RJF, 5/8 Kandi-yohi (Sibley S. P.) RE, 5/9–12 Winona (Whitewater S. P.) mob, 5/29 Mower (Hormel Nature Center) AH, 5/31 (second latest south) Wabasha (Co. Rd. 29) PS.
55:22MOU1999-05-29Hormel Nature CenterMowerThe Loon 71:209Accepted
avian
information
1999-05-29Mower5/29 Mower (fourteenth state record) (second county record)
Like the other “southern” warblers, more reports than usual. All records: 5/2–3 Kandiyohi (near Willmar) RJF, 5/8 Kandi-yohi (Sibley S. P.) RE, 5/9–12 Winona (Whitewater S. P.) mob, 5/29 Mower (Hormel Nature Center) AH, 5/31 (second latest south) Wabasha (Co. Rd. 29) PS.
56:23MOU1999-05-31county road 29WabashaThe Loon 71:209Accepted
avian
information
1999-05-31Wabasha5/31 Wabasha (fifteenth state record) (first county record)
Like the other “southern” warblers, more reports than usual. All records: 5/2–3 Kandiyohi (near Willmar) RJF, 5/8 Kandi-yohi (Sibley S. P.) RE, 5/9–12 Winona (Whitewater S. P.) mob, 5/29 Mower (Hormel Nature Center) AH, 5/31 (second latest south) Wabasha (Co. Rd. 29) PS.
57:24MOU2000-05-13Darwin-Dassel ParkMeekerThe Loon 72:224Accepted
avian
information
2000-05-13Meeker5/13 Meeker (first county record)
Only report: 5/13 Meeker (Darwin-Dassel Park) †DF.
58:25MOU2001-05-01Veteran's ParkHennepinThe Loon 73:224Accepted
59:26MOU2001-05-122001-05-20Hyland ParkHennepinThe Loon 73:224, 74:54Accepted
60:27MOU2001-07-28Linwood LakeAnokaThe Loon 74:31Accepted
avian
information
2001-07-28Anoka7/28 Anoka (first county record)
Second summer record for the state (the first was in 1998), an individual documented 7/28 Anoka (near Carlos Avery WMA) †CF.
77:92004-05-18Big Stone N.W.R.Lac qui Parle(recirculated record #2004-063, first vote 4-3, second vote 4-3). The observer reported recognizing its call note in flight, but the documentation lacked information about the observer's experience with this species (including its call notes), whether or not a field guide was used, and how other species were eliminated. Observers are encouraged to either use the “Request for Documentation” form or follow its format exactly; the form can be mailed upon request or downloaded (please note new URL) under “Documents for Downloading” at . Not Accepted
61:2877:1692005-04-15Warner Nature CenterWashington(record #2005-011, vote 7-0). Netted, banded, and photographed in the hand on a record-early date. Accepted
79:2382007indexWorm-eating Warbler in Lyon County
79:2392007indexWorm-eating Warbler in Clay County
62:2980:52007-04-23Camden State ParkLyon(record #2007-058, vote 7-0). Accepted
avian
information
2007-04-23Lyon4/23 Lyon (first county record)
First reports since 2005. First county records 4/23 Lyon (Camden S.P.) †RAE (The Loon 79:238), 5/6 Clay (Moorhead, near the Red River) †DPW, †PBB (The Loon 79:239–240).
63:3079:1232007-05-06MoorheadClay(record #2007-023, vote 7-0). Accepted
avian
information
2007-05-06Clay5/6 Clay (first county record)
First reports since 2005. First county records 4/23 Lyon (Camden S.P.) †RAE (The Loon 79:238), 5/6 Clay (Moorhead, near the Red River) †DPW, †PBB (The Loon 79:239–240).
64:3182:32009-04-26Eloise Butler Wildflower Sanctuary, MinneapolisHennepin(record #2009-045, vote 7-0). Hennepin County now has 23 records of this Casual species. Accepted
65:3281:1152009-05-15Veteran's Memorial Park, RichfieldHennepin(record #2009-029, vote 7-0). Accepted
66:3385:992013-05-042013-05-05FridleyAnoka(record #2013-009, vote 7-0). Adult. First spring record for Anoka County. Confidence in the documentation could have been appreciably improved by supplying contemporaneous field notes. Accepted
avian
information
2013-05-042013-05-05Anoka5/4, 5 Anoka (second county record)
The first spring report since 2009 was 5/4 Anoka (Fridey) †CF, same bird also reported 5/5 ELC.
67:3486:32013-05-16River Bend Nature Center, FaribaultRice(record #2013-017, original vote 4-3; recirculated vote 3-4). The observer reported the undeparts as “gray” rather than having buff or caramel-colored tones which one would normally expect a Worm-eating Warbler to exhibit. In addition, the submission was generally too succinct for several of the members to Accept. Accepted
87:42014-05-10Nevis Township Section 33 off County Road 13Hubbard(record #2014-037, first vote 4-3, recirculated vote 1-6). Two well-out-of-range birds seen together would be unprecedented. The observers were not experienced with the species. The description of the three black head stripes is confusing and not consistent with the species. Finally, the bird was said to have looked just like the one in the field guide indicating that the power of suggestion may have influenced the conclusion. Not Accepted
68:3587:952015-05-30Murphy-Hanrehan Park ReserveScott(record #2015-017, vote 7-0). Photographed, first county record. Accepted
avian
information
2015-05-30Scott5/30 Scott (first county record)
First county record 5/30 Scott (Murphy-Hanrehan P.R.) ph. †BAb, †CRM, ph. †RMD, m.ob.. Only the second spring report since 2009.
69:3688:912016-05-142016-05-18Cannon River Wilderness AreaRice(record #2016-013, vote 6-1). Accepted
avian
information
2016-05-142016-05-18Rice5/14-18 Rice (third county record)
Singing male 5/14–18 Rice (Cannon River Wilderness Area) †CJE, †TFB, †DAB, RBW, BWF.
70:3789:872017-05-16farm near Saco, Somerset TownshipSteele(record #2017-009, vote 5-2). Accepted
avian
information
2017-05-16Steele5/16 Steele (second county record)
All reports 5/16 Steele (Somerset Twp.) †PSu (The Loon 89:87–91), 5/22 Le Sueur (Sakatah S.P.) †RBW (The Loon 89:87–91), 5/31 Renville (810th Ave. at Hawk Creek) †GWe (The Loon 89:87–91).
71:3889:872017-05-22Sakatah State Park near campsite number 54Le Sueur(record #2017-013, vote 7-0). Accepted
avian
information
2017-05-22Le Sueur5/22 Le Sueur (first county record)
All reports 5/16 Steele (Somerset Twp.) †PSu (The Loon 89:87–91), 5/22 Le Sueur (Sakatah S.P.) †RBW (The Loon 89:87–91), 5/31 Renville (810th Ave. at Hawk Creek) †GWe (The Loon 89:87–91).
72:3989:872017-05-31Hawk Creek, Minnesota River ValleyRenville(record #2017-016, vote 6-1). First county record. Accepted
avian
information
2017-05-31Renville5/31 Renville (first county record)
All reports 5/16 Steele (Somerset Twp.) †PSu (The Loon 89:87–91), 5/22 Le Sueur (Sakatah S.P.) †RBW (The Loon 89:87–91), 5/31 Renville (810th Ave. at Hawk Creek) †GWe (The Loon 89:87–91).
73:4091:892018-05-04Wood-Rill SNAHennepin(record #2018-058, vote 7-0). Adult, photographed. Accepted
91:32018-05-13Blue Mounds State ParkRock(record #2018-055, vote 3-4). The identification was not pursued until the following day while accidentally stumbling on Worm-eating Warbler while looking at a field guide. Some members felt the description was too brief as was the length of the observation by an observer with no experience with the species. Not Accepted
avian
information
2018-05-13Rock5/13 Rock (first county record)
Two reports: 5/4 Hennepin (Wood Rill S.N.A.) ph. SuH, 5/13 Rock (Blue Mounds S.P.) †VKl.
94:1152022-04-26 College Park, St. PaulRamsey (record #2022-105, vote 3-4). The inexperience of the observer, coupled with an incomplete elimination of other similar possibilities, was fatal to the acceptance of this observation. Not Accepted
94:1152022-08-30 Wood Duck Trail, Minnesota Landscape ArboretumCarver (record #2022-098, vote 1-6). Fall records of this species are exceedingly rare — enough so that extra caution is warranted in evaluating the record. The scant detail was insufficient to preclude other possibilities such as Red-breasted Nuthatch or Ovenbird (to mention just a couple). Not Accepted
74:4195:32023-05-012023-05-03 Bass Ponds, Minnesota Valley National Wildlife Refuge, BloomingtonHennepin (record #2023-030, vote 7-0). Adult, photographed.

Accepted
 
 Sixty-nine records: 63 spring, 2 summer, and 4 fall. Recorded in five of the last ten years, most recently 2023.

Notes:

The information in the above table comes from several different sources. The count in column 1 indicates which of the sources is considered the primary source.
'Accepted' MOURC entries from The MOURC Proceedings
'Not Accepted' or 'Rejected' MOURC entry from The MOURC Proceedings
Accepted MOU records assembled by David Cahlander
Sighting records for ()
Avian information from the occurrence maps, in dark red, assembled by Robert Janssen. Seasonal report for the species/season published in The Loon or The Flicker has been added.
Information from The Loon index assembled by Anthony Hertzel and David Cahlander