| UID |
|
| Digital Object Type |
Rare birds documentation form |
| Content DM Link |
https://n2t.net/ark:/87292/w93775z0x |
| Type |
Text |
| Description |
Records Committee review for a California Gull at Babcock Access at Coralville Reservoir in Johnson County, IA on October 27, 1990. Includes a record review document with votes, two articles in Iowa Bird Life, and five documentation forms submitted to the committee. |
| Related Genres |
Administrative records Clippings (information artifacts) Field notes |
| Sort Date |
1990-10-27 - 1993-07-17 |
| People / Organizations |
|
| Time |
3:15 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 |
1 |
| Contributing Institution |
Iowa State University Library Special Collections and University Archives |
| Creator / Author |
Kent, Thomas H. (Thomas Hugh), 1934- |
| Contributors |
Thompson, Carol A. Bendorf, Carl J. Pinkston, Randall, 1956- Iowa Ornithologists' Union Records Committee Fuller, James L |
| Topics |
Bird watching Ornithology Ornithology--Societies, etc |
| Birds |
California Gull |
| Locations |
Babcock Access |
| Map |
|
| Verbatim Locality |
Babcock Access, Coralville Reservoir, Johnson County, Iowa |
| Location Remarks |
The documentation forms do not include georeferences |
| Habitat |
shallow, open area of reservoir |
| Extent |
14 pages |
| Language(s) |
eng |
| Bibliographic Citation |
|
| Information Withheld |
|
| Individual Count |
1 |
| Occurrence Remarks |
The documentation form by Thomas H. Kent is the earliest and the one that forms the basis of this record. Other documentation forms by Jim Fuller, Randy Pinkston, Carol Thompson, and Carl J. Bendorf were submitted later. Other observers include Timothy Dwyer, John Cordell, James Huntington, Cal Knight, Bernie Knight, and Rick Hollis. | Elimination of similar species: First-year Ring-billed Gulls were all in first winter plumage with gray mantle and were much lighter overall. The only other species considered is juvenile Herring Gull. The size is small for Herring Gull. The elongated appearance and short legs fit California Gull. Most young Herrings that I see in early fall have mostly dark bills that are larger than that of this bird. The double inner wing bar and lighter tertial tips fit California Gull. The overall relatively uniform and relatively light brown color without windows in the inner primaries also made this bird look different from Herring Gull. | The original documentation form event lasted from 15:15:00/16:55:00 on October 27, 1990 and from 19:10:00/22:30:00 and 15:00:00/16:00:00 on October 28, 1990. |
| Occurrence Status |
present |
| Field Number |
1990-34 |
| Event Remarks |
Viewing Conditions: Distance as above. Sun behind me or slightly to side. Use 20x scope and old Questar at about 50x. [...] The above observations were made with a 20x scope at 200-300 yards over a period of an hour. Later the bird landed on a spit at about 100 yards and I was able to get it in a Questar with the bird occupying about one-fourth of the field and made the following additional notes. |
| 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. | Harrison, P. Seabirds: an identification guide. New York: Houghton Mifflin Harcourt. |
| Date Digital |
30 May 2017 |
| File Type |
image/jpeg |
| Hardware / Software |
Epson - sheet feed/flatbed |
