UID
Digital Object Type Rare birds documentation form
Content DM Link https://n2t.net/ark:/87292/w91j97b0x
Type Text
Description Records Committee review for two Laughing Gulls at Red Rock Reservoir in Marion County, IA on August 6, 1991. Includes a record review document with votes, an article in Iowa Bird Life, and a documentation form submitted to the committee.
Related Genres Administrative records Clippings (information artifacts) Field notes
Sort Date 1991-08-06 - 1995-07-08
People / Organizations
Time 7:21 AM
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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 Dinsmore, Stephen J.
Contributors Iowa Ornithologists' Union Records Committee
Topics Bird watching Ornithology Ornithology--Societies, etc
Birds Laughing Gull
Locations Lake Red Rock
Map
Verbatim Locality Red Rock Reservoir, Marion Co.
Location Remarks The documentation forms do not include georeferences
Habitat large mudflat along lakeshore
Extent 4 pages
Language(s) eng
Bibliographic Citation
Information Withheld
Individual Count 2
Occurrence Remarks The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. Other observers include Bob Myers and many unidentified observers. | Elimination of similar species: The only species similar to a Laughing Gull is Franklin's Gull. This species was eliminated on the basis of size, bill size and shape, leg length, and wing and tail pattern. | The original documentation form event lasted from 07:21:00/13:56:00.
Occurrence Status present
Field Number 1991-31
Event Remarks Viewing Conditions: Viewing conditions were very good with overcast skies on the 6th and clear skies on the 11th. Estimated viewing distance was as close as 50 feet on the 6th. I used a Buschnell 20-45x spotting 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 26 May 2017
File Type image/jpeg
Hardware / Software Epson - sheet feed/flatbed