| UID |
|
| Digital Object Type |
Rare birds documentation form |
| Content DM Link |
https://n2t.net/ark:/87292/w9kp7tt38 |
| Type |
Image, Text |
| Description |
Records Committee review of a Black-bellied Whistling-Duck at Tomahawk Marsh in Sac County on April 10, 1998. Includes a record review document with votes, a photograph, an article in Iowa Bird Life, a map of one of the sightings, and seven documentation forms submitted to the committee. |
| Related Genres |
Administrative records Clippings (information artifacts) Field notes Maps (documents) Photographs |
| Sort Date |
1998-04-10 - 2000-11-24 |
| People / Organizations |
|
| Time |
7:58 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 |
8 |
| Folder |
3 |
| Contributing Institution |
Iowa State University Library Special Collections and University Archives |
| Creator / Author |
Reisz, Russell |
| Contributors |
Kent, Thomas H. (Thomas Hugh), 1934- Edwards, Chris Ernzen, Peter Proescholdt, Mark Tetrault, Richard Iowa Ornithologists' Union Records Committee Fuller, James L |
| Topics |
Bird watching Ornithology Ornithology--Societies, etc |
| Birds |
Black-bellied Whistling-Duck |
| Locations |
Tomahawk Marsh Wildlife Management Area |
| Map |
|
| Verbatim Locality |
Tomahawk Marsh, Sac County, Iowa |
| Location Remarks |
The documentation forms do not include georeferences |
| Habitat |
marsh, wetland |
| Extent |
14 pages |
| Language(s) |
eng |
| Bibliographic Citation |
|
| Information Withheld |
|
| Individual Count |
1 |
| Occurrence Remarks |
The documentation form by Russell Reisz is the earliest and the one that forms the basis of this record. Other documentation forms by Peter Ernzen, Thomas H. Kent, Jim Fuller, Dick Tetrault, Chris Edwards, and Mark Proescholdt were submitted later. Other observers include Beth Proescholdt. | Elimination of similar species: Fulvous Whistling-duck is the most similar species. This species was eliminated because it has a different bill color and a different leg color than the Black-bellied Whistling-duck. The Fulvous Whistling-duck also lacks the white wing patch and the dark belly of the Black-bellied Whistling-duck. These were all points of identification for the species seen at Tomahawk Marsh. | The original documentation form event lasted from 19:58:00/19:58:00. |
| Occurrence Status |
present |
| Field Number |
1998-13 |
| Event Remarks |
Give lighting, distance (how measured), and optical equipment: The bird was seen right at or shortly following sunset. The day was clear and the humidity was not a problem for viewing. Since the duck flew from east to west toward me the lighting was coming from the front. I observed the bird for approximately 20 seconds using Bausch & Lomb Legacy 8X40 binoculars. There was no opportunity for use of the spotting scope. Viewing distance varied from about 120 meters to less than 15 meters. The distances were estimated, but I have had some experience in this during field work in New Mexico and Iowa. I also have to judge distances often while hunting. |
| Supporting Documentation |
Ehrlich PR, Dobkin DS, Wheye D, The Birder's handbook: a field guide to the natural history of North American birds. New York: Simon & Shuster; 1988. | Kent TH, Dinsmore JJ. Birds in Iowa. Dexter: Thomson-Shore Inc.; 1996. I National Geographic Society. National geographic field guide to the birds of North America. National Geographic Society. |
| Date Digital |
09 May 2017 |
| File Type |
image/jpeg |
| Hardware / Software |
Epson - sheet feed/flatbed |
