UID
Digital Object Type Rare birds documentation form
Content DM Link https://n2t.net/ark:/87292/w9bg2hd12
Type Text
Description Records Committee review for a Great Black-backed Gull at Jester Park at Saylorville Reservoir in Polk County, IA on November 7, 1987. Includes a record review document with votes and a documentation form submitted to the committee.
Related Genres Administrative records Field notes
Sort Date 1987-11-07 - 1993-09-07
People / Organizations
Time 10:15 AM
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Data License http://creativecommons.org/publicdomain/zero/1.0
Collection Iowa Ornithologists' Union | MS 166
Box 11
Folder 8
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 Great Black-backed Gull
Locations Jester Park
Map
Verbatim Locality Saylorville Reservoir, Polk Co.-off Jester Park
Location Remarks The documentation forms do not include georeferences
Habitat feeding with other gulls on large reservoir
Extent 2 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. Another observer includes Andy Fix. | Elimination of similar species: The large size and dark wingtips eliminates all gulls except Western and Yellow-footed. The massive, dark bill, tail pattern, and pale body color eliminates these. | The original documentation form event lasted from approximately 10:15:00/10:20:00.
Occurrence Status present
Field Number 1987-22
Event Remarks Viewing Conditions: Viewing conditions were good with the sun mostly behind us. Estimated viewing distance was 250 yards at the closest. 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 01 Jun 2017
File Type image/jpeg
Hardware / Software Epson - sheet feed