UID
Digital Object Type Rare birds documentation form
Content DM Link https://n2t.net/ark:/87292/w9v97zv2k
Type Text
Description Records Committee review for a Thayer's Gull at Saylorville Dam in Polk County, IA on November 28, 1989. Includes a record review document with votes and a documentation form submitted to the committee.
Related Genres Administrative records Field notes
Sort Date 1989-11-28 - 1993-08-06
People / Organizations
Time 4:15 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 Dinsmore, Stephen J.
Contributors Iowa Ornithologists' Union Records Committee
Topics Bird watching Ornithology Ornithology--Societies, etc
Birds Thayer's Gull
Locations Saylorville Dam
Map
Verbatim Locality Saylorville Reservoir, Polk Co.-above dam
Location Remarks The documentation forms do not include georeferences
Habitat feeding with other gulls on large reservoir
Extent 3 pages
Language(s) eng
Bibliographic Citation
Information Withheld
Individual Count 1
Occurrence Remarks The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. Other observers include Bob Myers. | Elimination of similar species: The size, uniform body color, pale underside of the flight feathers, and dark bill eliminates othr [sic] gulls. Iceland Gull eliminated by uniform wing color without noticeably lighter wingtips. | The original documentation form event lasted from 16:15:00/16:20:00.
Occurrence Status present
Field Number 1989-46
Event Remarks Viewing Conditions: Viewing conditions were very good with the sun behind me. Estimated viewing distance was 100 yards. 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.
Date Digital 30 May 2017
File Type image/jpeg
Hardware / Software Epson - sheet feed