| UID |
|
| Digital Object Type |
Rare birds documentation form |
| Content DM Link |
https://n2t.net/ark:/87292/w9t14tq7b |
| Type |
Text |
| Description |
Records Committee review for a Red-throated Loon at Lake Manawa State Park in Pottawattamie County, IA on November 12, 1990. Includes a record review document with votes and two documentation forms submitted to the committee. |
| Related Genres |
Administrative records Field notes |
| Sort Date |
1990-11-12 - 1993-07-17 |
| People / Organizations |
|
| Time |
11:50 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 |
7 |
| Folder |
5 |
| Contributing Institution |
Iowa State University Library Special Collections and University Archives |
| Creator / Author |
Johnson, Ann |
| Contributors |
Bray, Tanya Iowa Ornithologists' Union Records Committee |
| Topics |
Bird watching Ornithology Ornithology--Societies, etc |
| Birds |
Red-throated Loon |
| Locations |
Lake Manawa State Park |
| Map |
|
| Verbatim Locality |
Lake Manawa State Park, Pottawattamie County, Iowa |
| Location Remarks |
The documentation forms do not include georeferences |
| Habitat |
Open water |
| Extent |
4 pages |
| Language(s) |
eng |
| Bibliographic Citation |
|
| Information Withheld |
|
| Individual Count |
1 |
| Occurrence Remarks |
The documentation form by Ann Johnson is the earliest and the one that forms the basis of this record. Another documentation form by Tanya E. Bray was submitted later. Other observers include Babs Padelford, BJ Rose, Ross Silcock, and Tim Schantz. | Elimination of similar species: Cormorants could be eliminated by bill shape, among other characteristics. The bird had some similarities to a Western Grebe, but the grebe would hold its head parallel to the water, has a longer neck, and does not show the contrast between head/nape and back. Common Loon was eliminated by posture, size and shape of bill, contrast of lighter head and darker back, and more diffuse separation of upper and underparts. Pacific Loon was eliminated by the grayer underparts, diffuse separation of upper and underparts, posture, and sharp upward angle on lower mandible. | The original documentation form event lasted from 11:50:00/12:15:00. |
| Occurrence Status |
present |
| Field Number |
1990-23 |
| Event Remarks |
Sky was clear and the sun was shining to our left rear. For much of the time observation was at distances of 70-100 yards through scope at 20x-40x. Tim attempted to get some photos, but at best will have some profile shots. |
| Supporting Documentation |
National Geographic Society. National geographic field guide to the birds of North America. Washington D.C.: National Geographic Society. |
| Date Digital |
04 May 2017 |
| File Type |
image/jpeg |
| Hardware / Software |
Epson - sheet feed |
