| UID |
|
| Digital Object Type |
Rare birds documentation form |
| Content DM Link |
https://n2t.net/ark:/87292/w9697013t |
| Type |
Image, Text |
| Description |
Records Committee review for an Iceland Gull at Red Rock Reservoir Dam in Marion County, IA on December 17, 1997. Includes a record review document with votes, a photograph, and three documentation forms submitted to the committee. |
| Related Genres |
Administrative records Field notes Photographs |
| Sort Date |
1997-12-17 - 2000-11-24 |
| People / Organizations |
|
| Time |
3:00 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 |
4 |
| Contributing Institution |
Iowa State University Library Special Collections and University Archives |
| Creator / Author |
Proescholdt, Mark |
| Contributors |
Dinsmore, Stephen J. Overton, Michael D. Iowa Ornithologists' Union Records Committee |
| Topics |
Bird watching Ornithology Ornithology--Societies, etc |
| Birds |
Iceland Gull |
| Locations |
Red Rock Dam |
| Map |
|
| Verbatim Locality |
Red Rock Reservoir - (Marion Co.) |
| Location Remarks |
The documentation forms do not include georeferences |
| Habitat |
Below the dam - churning waters |
| Extent |
8 pages |
| Language(s) |
eng |
| Bibliographic Citation |
|
| Information Withheld |
|
| Individual Count |
1 |
| Occurrence Remarks |
The documentation form by Mark Proescholdt forms the basis of this record. Other documentation forms by Michael D. Overton and Stephen J. Dinsmore were submitted. Other observers include Kay Niyo, Curt Nelson, Jan Walter, Chris Wood, and Jim Sandrock. | Elimination of similar species: [...] We saw this gull twice in our viewing time and debated if it was an adult Kumlien's Iceland Gull or an adult Thayer's Gull. It was an adult Kumlien's Iceland Gull because a Thayer's Gull has much more blackish coloration at the primary tips and more dark coloration at the primary tips than the Kumlien's which has grayish markings on the primary tips and less dark-colored markings at the primary tips overall. Also, a Kumlien's Iceland Gull shows the almost white wing tips like we saw with a little grayish markings on some primary tips. | The original documentation form event lasted from approximately 15:00:00/16:15:00. |
| Occurrence Status |
present |
| Field Number |
1997-56 |
| Event Remarks |
Viewing Conditions: Sunny, sun behind us. 40-50 yards away estimated. 8x30 Binocs. |
| Supporting Documentation |
National Geographic Society. National geographic field guide to the birds of North America. Washington D.C.: National Geographic Society. | Kaufmann K. Kaufman field guide to advanced birding. Peterson Field Guide Series. New York: Houghton Mifflin Harcourt. | Harrison P. Seabirds: an identification guide. New York: Houghton Mifflin Harcourt. | Birding. 1981. |
| Date Digital |
30 May 2017 |
| File Type |
image/jpeg |
| Hardware / Software |
Epson - sheet feed |
