MOURC Proceedings Archive - Bitterns, Herons, Egrets, Night-Herons 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: Bitterns, Herons, Egrets, Night-Herons
Tricolored Heron

Tricolored Heron (A) (Egretta tricolor)Start Date 0000-00-00
RefFirstLastLocationCounty23CommentStatus
1MOU1963-05-101963-05-24Agassiz N.W.R.MarshallThe Loon 36:106Accepted
2Janssen1971-06-121971-06-20Thief Lake W.M.A.MarshallThe Loon 43:93Accepted
avian
information
1971-06-12Marshall6/12 Marshall (second state record) (second county record)
RBJ and others observed an adult at Thief Lake Wildlife Area, Marshall Co. on 6-12; only the second state record; could this be the same bird that was seen at Agassiz Refuge only a few miles away in the 1960's? (see Notes Of Interest The Loon 43:93)
avian
information
1977-06-201977-07-24Grant6/20-7/24 Grant (third state record) (first county record)
On 6-20 C. Bergman found 3 at Pelican L., Grant Co. (4 seen later that day by GO), which resulted in many (but not all) observers seeing this species here into July (last seen on 7-24 in nearby Otter Tail Co., S. Millard); only the third state record.
3MOU1977-06-201977-07-24Pelican Lake and vicinityOtter TailGrantGrant and Otter Tail counties The Loon 49:168, 50:10Accepted
4MOU1981-05-041981-05-08Sherburne N.W.R.SherburneThe Loon 53:171Accepted
5MOU1982-05-201982-05-23OsageBeckerThe Loon 54:188Accepted
avian
information
1982-05-201982-05-22Becker5/20-22 Becker (sixth state record) (first county record)
4-20, 21 Becker JP, J. Mittleholtz. Louisiana Heron, 20 May.1982, Osage, Becker Co. -photo by JeH Mittelholtz
656:171983-07-031983-07-12near AldenFreeborn(vote 7-0; Loon 55: 179180). Accepted
avian
information
1983-07-071983-07-12Freeborn7/7-12 Freeborn (seventh state record) (first county record)
756:1601984-05-04PlymouthHennepin(vote 5-2; The Loon 56:196). Accepted
8MOU1986-06-241986-08-24Agassiz N.W.R.MarshallThe Loon 59:49Accepted
961:1211989-05-041989-05-07BloomingtonHennepin(vote 7-0; The Loon 61:82). Accepted
avian
information
1989-05-041989-05-20Hennepin5/4-20 Hennepin (tenth state record) (second county record)
Reported 5/4-20 Bloomington, Hennepin Co. TH, m.ob. (The Loon 61 :82).
1063:411990-07-281990-07-29near New GermanyCarver(vote 7-0; The Loon 62:233) . Accepted
avian
information
1990-08-07Carver8/7 Carver (twelfth state record) (second county record)
1164:1381992-05-25WinonaWinona(vote 5-2; The Loon 64:171-172). Accepted
1270:1561998-05-09Louisville SwampScott(record #98-45, vote 7–0, The Loon 70:170–171). Accepted
avian
information
1998-05-091998-05-16Scott5/9, 16 Scott (fourteenth state record) (first county record)
Reported 5/9 Scott (Louisville Swamp) BF (The Loon 70:170–171).
1373:352000-05-292000-06-04HastingsDakota(record #200052, vote 7–0, The Loon 72:242–243) Accepted
1473:1682001-05-21near Two HarborsLake(record #2001-26, vote 7–0, The Loon 73:182–183). Accepted
1579:1232007-06-052007-06-08Black Rush Lake W.P.A.Lyon(record #2007-038, vote 7–0). Accepted
1684:1072012-05-19Succonix WMA (north unit), Clearwater TownshipWright(record #2012-015, vote 5–2). Although seen only in flight, the observer's documentation is adequate to support the identification. Considerable weight was given to the observer's previous experience with this species in southern states. First county record; sixteenth state record; and ninth spring record. The most recent previous record was in 2007. Accepted
1789:872017-04-222017-04-23Slaughter SloughMurray(record #2017-030, vote 7–0). Adult, photographed. First county record. Accepted
avian
information
2017-04-23Murray4/23 Murray (first county record)
The first record since 2012 was found 4/22–23 Murray (Slaughter Slough) ph. KeA (The Loon 89:87–91).
1893:1152022-08-092022-08-11 Watonwan WMABlue Earth (record #2022-077, vote 7–0). Adult, photographed. First county record. Accepted
avian
information
2022-08-092022-08-10Blue Earth8/9, 10 Blue Earth (first county record)
The first fall record since 1990 was an adult discovered 8/9–10 Blue Earth (Watonwan W.P.A.) BSa, †EzH, ph. †KEm, ph. †CRM, ph. †BLz, ph. RZi.
 
 Seventeen records: ten spring, one spring-summer, five summer, and one summer-fall. Recorded in two (2012, 2017) of the last ten years.

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