| UID |
|
| Digital Object Type |
Rare birds documentation form |
| Content DM Link |
https://n2t.net/ark:/87292/w94j0b03n |
| Type |
Text |
| Description |
Rare bird documentation form for a Great Black-backed Gull at Lake Manawa in Pottawattamie County, IA on December 6, 1978. |
| Related Genres |
Field notes |
| Sort Date |
1978-12-06 - 1979-01-06 |
| People / Organizations |
|
| Time |
4:30 PM |
| Rights |
This Item is protected by copyright and/or related rights. However, for this Item, 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 |
34 |
| Folder |
38 |
| Contributing Institution |
Iowa State University Library Special Collections and University Archives |
| Creator / Author |
Green, Ruth |
| Contributors |
Kovanda, James, Jr. Kovanda, Sandra |
| Topics |
Birds--Identification Ornithology Rare birds |
| Birds |
Great Black-backed Gull |
| Locations |
Lake Manawa |
| Map |
|
| Verbatim Locality |
Lake Manawa, Council Bluffs, Iowa |
| Location Remarks |
The documentation forms do not include georeferences |
| Habitat |
Most of Lake Manawa was frozen over at this time but there were small patches of open water. The bird was standing on the ice at the edge of one of these patches. |
| Extent |
2 pages |
| Language(s) |
eng |
| Bibliographic Citation |
|
| Information Withheld |
|
| Individual Count |
1 |
| Occurrence Remarks |
The documentation form by Ruth Green is the only one submitted and forms the basis of this record. Other observers include Sandra and James Kovanda. | Elimination of similar species: There were only two gulls at this time there--this bird and the glaucous. | The original documentation form event lasted from 16:30:00/17:00:00. |
| Occurrence Status |
present |
| Field Number |
|
| Event Remarks |
Viewing Conditions: Distance: I can only estimate that it was between 300 and 400 feet from my viewing point on the shore. Optical equipment: I could see the bird very well through Bushnell 7 x 35 Wide-angle binoculars but I studied this bird carefully through a Baush [sic] & Lomb Spotting Scope on 30 power. It could be seen almost equally as well on both 15 and 20 power however. Light: I was facing east as I was studying the bird, the afternoon sun was to my back which provided very good lighting conditions. |
| Supporting Documentation |
National Geographic Society. National geographic field guide to the birds of North America. Washington D.C.: National Geographic Society. | Peterson RT. Field guide to birds of Eastern and Central North America. New York: Houghton Mifflin Harcourt. |
| Date Digital |
11 Jan 2018 |
| File Type |
image/jpeg |
| Hardware / Software |
Epson - sheet feed |
