| UID |
|
| Digital Object Type |
Rare birds documentation form |
| Content DM Link |
https://n2t.net/ark:/87292/w91z41w2t |
| Type |
Text |
| Description |
Records Committee review for a Black-headed Grosbeak at Coralville Reservoir in Johnson County, IA on May 13, 1985. Includes a record review document with votes, Midwest Black-headed Grosbeak records by date, and a documentation form submitted to the committee. |
| Related Genres |
Administrative records Field notes |
| Sort Date |
1985-05-13 - 1993-09-03 |
| People / Organizations |
|
| Time |
8:20 AM |
| Rights |
This complex item has mixed rights protection. Portions in which Iowa State University is the copyright holder are made available for non-commercial use, including sharing and adapting the work. No permission is required for non-commercial use to these portions so long as attribution is provided. All other uses of these portions, including commercial, require permission from the Iowa State University Library Special Collections and University Archives (archives@iastate.edu). (CC BY-NC 4.0 International). Portions in which Iowa State University is not the copyright holder are believed to be under copyright, but either (a) no rights-holder(s) have been identified or (b) one or more rights-holder(s) have been identified but none have been located. If you have any information that can contribute to identifying or locating the rights-holder(s) please notify the Iowa State University Library Digital Initiatives Program (digital@iastate.edu). (Rightsstatements.org InC-RUU 1.0). The original object is available at the Iowa State University Library Special Collections and University Archives (archives@iastate.edu). |
| Data Access Rights |
http://vertnet.org/resources/norms.html |
| Data License |
http://creativecommons.org/publicdomain/zero/1.0 |
| Collection |
Iowa Ornithologists' Union | MS 166 |
| Box |
14 |
| Folder |
3 |
| Contributing Institution |
Iowa State University Library Special Collections and University Archives |
| Creator / Author |
Kent, Thomas H. (Thomas Hugh), 1934- |
| Contributors |
Iowa Ornithologists' Union Records Committee |
| Topics |
Bird watching Ornithology Ornithology--Societies, etc |
| Birds |
Black-headed Grosbeak |
| Locations |
Coralville Lake |
| Map |
|
| Verbatim Locality |
Coralville Res., Johnson Co., IA |
| Location Remarks |
The documentation forms do not include georeferences |
| Habitat |
Bird was in old willows at edge of reservoir. |
| Extent |
4 pages |
| Language(s) |
eng |
| Bibliographic Citation |
|
| Information Withheld |
|
| Individual Count |
1 |
| Occurrence Remarks |
The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. | Elimination of similar species: The brown color most closely matched that shown by Peterson (1980) for the male Black-headed Grosbeak. The features I saw best were the brown rump, the contrast between the brown breast and flanks and gray belly, the thin white wing bars, and the darker color of wings and tail. The fact that the bird was singing loudly and continuously indicates that it was a male. The lack of breast streaking, dark color, and failure to see an eye stripe also argue against the bird being a female. The rich brown coloration only fits Black-headed Grosbeak. No features that fit Rose-breasted Grosbeak, such as red on the breast or underwings, white flanks or rump, or light-colored bill, were seen. Failure to see a demarcated black head and white in the wing and tail in flight is disturbing, but the side to back lighting and brief duration of each look at the bird (when I concentrated on looking at the features cited above) may account for this. The wing bars were not as wide as usually depicked [sic] for males. Perhaps the bird was in first nuptial plumage. | The original documentation form event lasted from 08:20:00/08:30:00. |
| Occurrence Status |
present |
| Field Number |
1985-07 |
| Event Remarks |
Viewing Conditions: As close as 30 feet, mostly back to side lighting, 10x binoculars. |
| Supporting Documentation |
|
| Date Digital |
20 Jun 2017 |
| File Type |
image/jpeg |
| Hardware / Software |
Epson - sheet feed |
