UID |
|
Digital Object Type |
Rare birds documentation form |
Content DM Link |
https://n2t.net/ark:/87292/w9kp7tv08 |
Type |
Text |
Description |
Records Committee review for a Great Black-backed Gull at Lock 19 in Keokuk in Lee County, IA on February 7, 1991. Includes a record review document with votes, an article in Iowa Bird Life, comparison of different gull sightings, and two documentation forms submitted to the committee. |
Related Genres |
Administrative records Clippings (information artifacts) Field notes |
Sort Date |
1991-02-07 - 1993-07-17 |
People / Organizations |
|
Time |
1:10 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 |
11 |
Folder |
8 |
Contributing Institution |
Iowa State University Library Special Collections and University Archives |
Creator / Author |
Dinsmore, Stephen J. |
Contributors |
Johnson, Ann Iowa Ornithologists' Union Records Committee |
Topics |
Bird watching Ornithology Ornithology--Societies, etc |
Birds |
Great Black-backed Gull |
Locations |
Lock Number 19 |
Map |
|
Verbatim Locality |
Lock 19, Keokuk, Lee Co. |
Location Remarks |
The documentation forms do not include georeferences |
Habitat |
|
Extent |
10 pages |
Language(s) |
eng |
Bibliographic Citation |
|
Information Withheld |
|
Individual Count |
1 |
Occurrence Remarks |
The documentation form by Steve Dinsmore forms the basis of this record. Another documentation form by Ann Johnson was submitted. Another observer was Beth Brown. | Elimination of similar species: The black mantle really eliminates most other gulls. Western Gull, a remote possibility, is smaller and has a slightly paler mantle. | The original documentation form event lasted from 13:10:00/15:40:00 on February 7, 1991 and 13:32:00/14:20:00 on February 8, 1991. |
Occurrence Status |
present |
Field Number |
1991-18 |
Event Remarks |
Viewing Conditions: Viewing conditions were very good with the sun mostly behind me. Estimated viewing distance was 200-300 yards. I used a Buschnell 20-45x spotting scope. |
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. |
Date Digital |
01 Jun 2017 |
File Type |
image/jpeg |
Hardware / Software |
Epson - sheet feed |