| UID |
|
| Digital Object Type |
Rare birds documentation form |
| Content DM Link |
https://n2t.net/ark:/87292/w9t43j542 |
| Type |
Image, Text |
| Description |
Records Committee review for a Little Gull at Sandpiper Beach at Saylorville Reservoir in Polk County, IA on October 8, 1989. Includes a record review document with votes, correspondence about the request for reevaluation of record, a photograph, photocopy of two photographs, an article in Iowa Bird Life, and three documentation forms submitted to the committee. |
| Related Genres |
Administrative records Clippings (information artifacts) Correspondence Field notes Photographs |
| Sort Date |
1989-10-08 - 1996-01-25 |
| People / Organizations |
|
| Time |
9:30 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 |
10 |
| Folder |
20 |
| Contributing Institution |
Iowa State University Library Special Collections and University Archives |
| Creator / Author |
Dinsmore, Stephen J. |
| Contributors |
Allen, Pam Allen, Reid I. Iowa Ornithologists' Union Records Committee |
| Topics |
Bird watching Ornithology Ornithology--Societies, etc |
| Birds |
Little Gull |
| Locations |
Sandpiper Recreation Area |
| Map |
|
| Verbatim Locality |
Saylorville Reservoir, Polk Co.-seen off Sandpiper Beach Recreation Area |
| Location Remarks |
The documentation forms do not include georeferences |
| Habitat |
seen flying over large reservoir with several Ring-billed Gulls |
| Extent |
14 pages |
| Language(s) |
eng |
| Bibliographic Citation |
|
| Information Withheld |
|
| Individual Count |
1 |
| 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 Pam Allen and Reid Allen were submitted later. | Elimination of similar species: The bird was obviously too small to be one of the larger gulls, like a Ring-billed or a Herring gull. The very pale mantle, dark spot behind each eye, and lack of black on the top of the primaries eliminates Franklin's and Laughing gulls. The black underside of the flight feathers, pale gray mantle and wings, white wingtips, and rounded wings eliminates Bonaparte's and Sabine's gulls and kittiwakes. The square tail and wing pattern eliminates Ross' Gull. The smaller size, black underside of the flight feathers, lack of a white "wedge" on the upper surface of the outer primaries, rounder wings, and lack of black on the upper surface of the primaries eliminates Common Black-headed Gull. | The original documentation form event lasted from 09:30:00/09:34:00. |
| Occurrence Status |
present |
| Field Number |
1989-38 |
| Event Remarks |
Viewing Conditions: Viewing conditions were good with a mostly clear sky and the sun about ninety degrees to our left. Estimated viewing distance was 50 yards at the closest. I used Buschnell 8x35 binoculars. |
| Supporting Documentation |
National Geographic Society. National geographic field guide to the birds of North America. Washington D.C.: National Geographic Society. |
| Date Digital |
26 May 2017 |
| File Type |
image/jpeg |
| Hardware / Software |
Epson - sheet feed/flatbed |
