Duplicates
The Loon, journal of the Minnesota Ornithologists' Union.
The last 2 years are available to MOU members.
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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. |
| Families |
| Species: Warblers |
| MacGillivray's Warbler (A) (Geothlypis tolmiei) | Start Date 0000-00-00 | ||||||||
| Ref | First | Last | Location | County | 2 | 3 | Comment | Status | |
|---|---|---|---|---|---|---|---|---|---|
| 30:117 | 1958 | index | MacGillivray's Warbler -- A New Species for Minnesota | ||||||
| 1 | MOU | 1958-05-11 | Madison | Lac qui Parle | The Flicker 30:117 | Accepted | |||
| avian information | 1958-05-11 | Lac qui Parle | 5/11 Lac qui Parle (first state record) (first county record) | ||||||
| 31:102 | 1959 | index | MacGillivray's Warbler Banded at Duluth | ||||||
| 34:43-47 | 1962 | index | The Genus Oporornis | ||||||
| 37:45 | 1965 | index | Sight Record of a Possible MacGillivray's Warbler | ||||||
| 53:109-110 | 1981 | index | Minnesota Does Have a Specimen of MacGillivray's Warbler | ||||||
| 55:117 | 1983-05-08 | Elm Creek Park | Hennepin | (vote 0-7) This identification was based solely on the bird's broken eye ring, but Mourning Warblers, even breeding-plumaged males in spring, can also have such an eye ring. Because of this, it is highly unlikely that any sight records of the MacGillivray's could ever be acceptable in Minnesota; a measured specimen or banded bird would be required. | Not Accepted | ||||
| 74:36 | 2001-08-31 | Cottonwood | Lyon | (record #2001-49, vote 1-6). The experienced and careful observer took field notes at the time of the observation, and it may well have been correctly identified. In fall, however, field identification of female-plumaged MacGillivray's vs. Mourning warblers is very difficult, and it may not be possible out of range without a specimen, photo, or a banded bird carefully measured. Bold eyearcs are mentioned, suggesting this may have been a male, but there is no description of blackish lores, which would have been indicative of a MacGillivray's. The call note was described as “oick,” but this would actually fit a Mourning Warbler's note better. | Not Accepted | ||||
| 76:39 | 2003-08-27 | Big Stone Lake State Park | Big Stone | (record #2003-73, vote 0-7). The identification of this warbler rested almost entirely on the “large, broken eyering arcing over eyes,” as described in the original field notes. While this is certainly suggestive of MacGillivray's Warbler, some Mourning Warblers can also exhibit this same feature in fall (see The Auk 107:161- 171). In addition, the field notes state the throat was yellow, which is much more indicative of a Mourning Warbler. Given how extremely unusual this species is in Minnesota — with only one previous record — and how difficult it is to separate these two species in fall, only the most thorough and unambiguous documentation could be accepted for any fall MacGillivray's sight record. | Not Accepted | ||||
| avian information | 2003-08-27 | Big Stone | 8/27 Big Stone (second state record) (first county record) | ||||||
| 77:62-74 | 2005 | index | MacGillivray’s Warblers in Minnesota and Problems of Identification | ||||||
| 2 | 95:115 | 2010-09-09 | near Dundas | Rice | (record #2010-052, vote 7-0). Banded and photographed. Banding data included wing-minus-tail measurements within acceptable range by an experienced bander. | Accepted | |||
| 86:107 | 2014-05-27 | Otter Tail County (record #2014-027 | Otter Tail | (record #2014-027, Accidental, vote 1-6). The observation was made by an observer who didn't have any experience with the species or the similar-looking Mourning Warbler. The observer also made the identification later from memory after looking at field guides which may involve the power of suggestion. | Not Accepted | ||||
| 95:115 | 2019-05-17 | Schulze Lake area, Lebanon Hills Regional Park | Dakota | (record #2019-071, vote 0-7). One of the photos shows quite prominent eye arcs. However, eye arcs alone are not considered diagnostic. In other photos, eye arcs are noticeably less prominent. The bird did not vocalize. There are other aspects of the bird that suggest more strongly that it is a male Mourning Warbler such as the longer undertail coverts, the absence of black across the anterior forehead, and moderate gray rather than black in front of the eye. In addition, this location is known to have summering Mourning Warblers that potentially breed here. | Not Accepted | ||||
| 93:47 | 2020-09-23 | Golden Valley | Hennepin | (record #2020-079, vote 0-7). Photographed. Found dead on a sidewalk in a residential neighborhood. The photograph appears to depict a Nashville Warbler. | Not Accepted | ||||
| 95:115 | 2023-09-09 | St. Thomas Lake Wildlife Management Area | Le Sueur | (record #2023-127, vote 0-7).The observer apparently is relying almost exclusively on eye arcs which is an indicator of MacGillivray's, but not diagnostic. | Not Accepted | ||||
| Two records: one spring (1958) and one fall (2010). | |||||||||
| 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 | ||