| UID |
|
| Digital Object Type |
Rare birds documentation form |
| Content DM Link |
https://n2t.net/ark:/87292/w9445hf77 |
| Type |
Text |
| Description |
Records Committee review of a Laughing Gull at Lake Manawa in Pottawattamie County in September 9, 1990. Includes a record review document with votes and two documentation forms submitted to the committee. |
| Related Genres |
Administrative records Field notes |
| Sort Date |
1990-09-09 - 1994-11-04 |
| People / Organizations |
|
| Time |
7:35 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 |
18 |
| Contributing Institution |
Iowa State University Library Special Collections and University Archives |
| Creator / Author |
Bray, Tanya |
| Contributors |
Silcock, W. Ross Iowa Ornithologists' Union Records Committee |
| Topics |
Bird watching Ornithology Ornithology--Societies, etc |
| Birds |
Laughing Gull |
| Locations |
Lake Manawa |
| Map |
|
| Verbatim Locality |
Lake Manawa, Pottawattamie County |
| Location Remarks |
The documentation forms do not include georeferences |
| Habitat |
|
| Extent |
7 pages |
| Language(s) |
eng |
| Bibliographic Citation |
|
| Information Withheld |
|
| Individual Count |
1 |
| Occurrence Remarks |
The documentation form by Tanya Bray forms the basis of this record. Another documentation form by Ross Silcock was submitted. Other observers include Babs and Loren Padelford. | Elimination of similar species: This bird differed from Franklin's Gull in the following ways: 1. Less extensive black on head. Eye coverts were not immediately noticable [sic] due to white cheek area. 2. Longer legs, more upright posture, and generally a very long, slender bird. 3. In flight, the bird had long slender wings with completely dark primaries; no white dividing the tips of the outer primaries from the rest of wing, and no white tips to outer primaries. Underside of primaries as described above. 4. Bill was long, curved and slightly swollen and hooked at tip. | The original documentation form event lasted from around 07:35:00/07:36:00, 08:45:00, 12:15:00, and 18:30:00. |
| Occurrence Status |
present |
| Field Number |
1990-31 |
| Event Remarks |
Viewing Conditions: [...] Approximately 7:35 a.m. Gull is perched on buoy about 150 feet away. Sun directly behind observer. Light very good. Equipment: 7x26 binoculars, 25x Spotting Scope [...] Approximately 8:45 a.m. Bird is relocated swimming with Ring-billed Gulls at great distance. Observer with sun on right hand. Distance and light preclude any detailed observation. Equipment: 25x Scope [...] 12:15 p.m. Laughing Gull still swimming with Ring-billed Gulls. Distance from bird approximately 75-100 feet. Clear skies, sun directly overhead. [...] 7 x 26 binoculars [...] 6:30 p.m. Laughing Gull still swimming with Ring-billed Gulls. Distance from bird approximately 100 feet. Sky completely cloudy. Equipment: 7 x 26 binoculars, 25 x Scope |
| 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. |
| Date Digital |
24 May 2017 |
| File Type |
image/jpeg |
| Hardware / Software |
Epson - sheet feed/flatbed |
