| UID |
|
| Digital Object Type |
Rare birds documentation form |
| Content DM Link |
https://n2t.net/ark:/87292/w9bg2hc9g |
| Type |
Text |
| Description |
Records Committee review of two Pomarine Jaegers at Saylorville Reservoir in Polk County, IA on September 28, 1988. Includes a record review document with votes, an article in Iowa Bird Life, and six documentation forms submitted to the committee. |
| Related Genres |
Administrative records Clippings (information artifacts) Field notes |
| Sort Date |
1988-09-28 - 1993-08-04 |
| People / Organizations |
|
| Time |
12:24 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 |
15 |
| Contributing Institution |
Iowa State University Library Special Collections and University Archives |
| Creator / Author |
Dinsmore, Stephen J. |
| Contributors |
Kent, Thomas H. (Thomas Hugh), 1934- Myers, Robert K. Petersen, Peter C. Proescholdt, Beth Proescholdt, Mark Iowa Ornithologists' Union Records Committee |
| Topics |
Bird watching Ornithology Ornithology--Societies, etc |
| Birds |
Pomarine Jaeger |
| Locations |
Saylorville Lake |
| Map |
|
| Verbatim Locality |
Saylorville Reservoir, Polk Co.-south end of lake |
| Location Remarks |
The documentation forms do not include georeferences |
| Habitat |
resting and feeding on large reservoir |
| Extent |
12 pages |
| Language(s) |
eng |
| Bibliographic Citation |
|
| Information Withheld |
|
| Individual Count |
2 |
| Occurrence Remarks |
The documentation form by Steve Dinsmore is the earliest and the one that forms the basis of this record. Other documentation forms by Bob Myers, Thomas H. Kent, Peter C. Petersen, Beth Proescholdt, and Mark Proescholdt were submitted later. Other observers include Babs Padelford, Loren Padelford, Jim Sinclair, Bery Engebretsen, Eugene Armstrong, Eloise Armstrong, Jim Dinsmore, Jim Fuller, Brian Blevins, and many unidentified other observers. | Elimination of similar species: The gull-like shape, dark color, and white wing patches eliminate all birds except Jaegers. The large size compared to Ring-billed Gulls, heavy build, large, thick bill, prominent white patches on the upper and under surface on the wings, and the presence of a second white "crescent" on the underwing at the base of the primary coverts eliminate both Parasitic and Long-tailed Jaegers. | The original documentation form event lasted from 12:24:00/14:46:00. |
| Occurrence Status |
present |
| Field Number |
1988-24 |
| Event Remarks |
Viewing Conditions: Viewing conditions were rather poor on 28 Sep with rain and fog severely limiting visibility. Viewing conditions were excellent on later dates. Estimated viewing distance was as close as 4-5 feet for one bird. I used a Buschnell 20-45x spotting scope and Bausch and Lomb 8x40 binoculars. |
| Supporting Documentation |
National Geographic Society. National geographic field guide to the birds of North America. Washington D.C.: National Geographic Society. | Peterson RT. Field guide to birds of Eastern North America. New York: Houghton Mifflin Harcourt. | Harrison P. Seabirds: an identification guide. New York: Houghton Mifflin Harcourt. |
| Date Digital |
24 May 2017 |
| File Type |
image/jpeg |
| Hardware / Software |
Epson - sheet feed |
