| UID |
|
| Digital Object Type |
Rare birds documentation form |
| Content DM Link |
https://n2t.net/ark:/87292/w96q1sk5b |
| Type |
Text |
| Description |
Records Committee review of a Mew Gull at Lakeview Recreation Area at Saylorville Reservoir in Polk County, IA on December 20, 1993. Includes a record review document with votes, an article in Iowa Bird Life, and a documentation form submitted to the committee. |
| Related Genres |
Administrative records Clippings (information artifacts) Field notes |
| Sort Date |
1993-12-20 - 1996-01-25 |
| People / Organizations |
|
| Time |
3:42 PM |
| 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 |
10 |
| Folder |
23 |
| Contributing Institution |
Iowa State University Library Special Collections and University Archives |
| Creator / Author |
Dinsmore, Stephen J. |
| Contributors |
Iowa Ornithologists' Union Records Committee |
| Topics |
Bird watching Ornithology Ornithology--Societies, etc |
| Birds |
Mew Gull |
| Locations |
Lakeview Recreation Area |
| Map |
|
| Verbatim Locality |
Saylorville Reservoir, Polk Co., IA-on jetty at Lakeview Rec. Area |
| Location Remarks |
The documentation forms do not include georeferences |
| Habitat |
perched on jetty with other gulls |
| Extent |
5 pages |
| Language(s) |
eng |
| Bibliographic Citation |
|
| Information Withheld |
|
| Individual Count |
1 |
| Occurrence Remarks |
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. Other observers include Susan Grove, Eugene Armstrong, and Eloise Armstrong. | Elimination of similar species: On the basis of size and general plumage characters, this species could only be confused with Ring-billed Gull, hundreds of which were available for direct comparison. The combination of slightly smaller size, distinct head shape, bill color and shape, dark eye, and slightly darker mantle and upperwings are sufficient to eliminate Ring-billed Gull. | The original documentation form event lasted from 15:42:00/16:53:00. |
| Occurrence Status |
present |
| Field Number |
1993-37 |
| Event Remarks |
Viewing Conditions: Viewing conditions were excellent with overcast skies. Estimated viewing distance was 75-100 meters. I used a Kowa 20-60x spotting scope and Leica 10x42 binoculars. |
| Supporting Documentation |
National Geographic Society. National geographic field guide to the birds of North America. Washington D.C.: National Geographic Society. | Grant, PJ. Gulls: a guide to identification. Cambridge, MA: Academic Press; 1986. | Tove, MH. Field separation of ring-billed, mew, common, and kamchatka gulls. Birding, 1993. 25: 386-401. |
| Date Digital |
26 May 2017 |
| File Type |
image/jpeg |
| Hardware / Software |
Epson - sheet feed |
