| UID |
|
| Digital Object Type |
Rare birds documentation form |
| Content DM Link |
https://n2t.net/ark:/87292/w90p0ws9m |
| Type |
Text |
| Description |
Rare bird documentation form for a Herring Gull at Red Rock Reservoir in Marion County, IA on January 4, 1991. |
| Related Genres |
Field notes |
| Sort Date |
1991-01-04 - 1991-01-23 |
| People / Organizations |
|
| Time |
8:10 AM |
| 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 |
34 |
| Contributing Institution |
Iowa State University Library Special Collections and University Archives |
| Creator / Author |
Kent, Thomas H. (Thomas Hugh), 1934- |
| Contributors |
Barksdale, Tim Fuller, James L |
| Topics |
Birds--Identification Ornithology Rare birds |
| Birds |
Herring Gull |
| Locations |
Lake Red Rock |
| Map |
|
| Verbatim Locality |
Red Rock Reservoir, Marion County, Iowa |
| Location Remarks |
The documentation forms do not include georeferences |
| Habitat |
Des Moines River below dam, water mostly open with ice on edges |
| Extent |
1 page |
| Language(s) |
eng |
| Bibliographic Citation |
|
| Information Withheld |
|
| Individual Count |
1 |
| Occurrence Remarks |
The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Other observers include Jim Fuller and Tim Barksdale. | Elimination of similar species: The color of the back and obvious window in the inner primaries, as well as the rest of the feather tracts, all fit 2nd winter Herring Gull and seem to exclude Lesser Black-backed Gull. The soft parts were somewhat atypical, but I was not bothered much by this because I have seen much variation in Herring Gulls. | The original documentation form event lasted from 08:10:00/08:25:00 and 12:45:00/13:00:00 (approximate) |
| Occurrence Status |
present |
| Field Number |
|
| Event Remarks |
Viewing Conditions: 30 to 100 yards, partly overcast, 20x binocular, and zoom Kowa scope. |
| 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. |
| Date Digital |
15 Dec 2017 |
| File Type |
image/jpeg |
| Hardware / Software |
Epson - sheet feed |
