UID
Digital Object Type Rare birds documentation form
Content DM Link https://n2t.net/ark:/87292/w9183452c
Type Text
Description Records Committee review for a Thayer's Gull at Red Rock Dam in Marion County, IA on December 13, 1988. Includes a record review document with votes and a documentation form submitted to the committee.
Related Genres Administrative records Field notes
Sort Date 1988-12-13 - 1993-08-04
People / Organizations
Time 3:01 PM
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Data License http://creativecommons.org/publicdomain/zero/1.0
Collection Iowa Ornithologists' Union | MS 166
Box 11
Folder 3
Contributing Institution Iowa State University Library Special Collections and University Archives
Creator / Author Johnson, Ann
Contributors Iowa Ornithologists' Union Records Committee
Topics Bird watching Ornithology Ornithology--Societies, etc
Birds Thayer's Gull
Locations Red Rock Dam
Map
Verbatim Locality below dam - Lake Red Rock, Marion Co, IA
Location Remarks The documentation forms do not include georeferences
Habitat dam on Des Moines River forming reservoir; open river with islands
Extent 2 pages
Language(s) eng
Bibliographic Citation
Information Withheld
Individual Count 1
Occurrence Remarks The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: Ring-billed eliminated by size and leg color. Herring eliminated by head shape and eye color. Iceland eliminated by eye color, mantle color, and size and shape of head. | The original documentation form event lasted from 15:01:00/15:03:00.
Occurrence Status present
Field Number 1988-38
Event Remarks Viewing Conditions: Partly cloudy with sun low behind the dam. Observed at an estimated 100' through scope at 30x and 7x26 binoculars.
Supporting Documentation National Geographic Society. National geographic field guide to the birds of North America. Washington D.C.: National Geographic Society. | Farrand J. The Audubon society master guide to birding, vol. 2, gulls to dippers. New York: Alfred A. Knopf, Inc.
Date Digital 30 May 2017
File Type image/jpeg
Hardware / Software Epson - sheet feed