UID
Digital Object Type Rare birds documentation form
Content DM Link https://n2t.net/ark:/87292/w9d21rm9m
Type Text
Description Records Committee review for a Thayer's Gull at Red Rock Dam in Marion County, IA on October 24, 1991. Includes a record review document with votes and a documentation form submitted to the committee.
Related Genres Administrative records Field notes
Sort Date 1991-10-24 - 1993-07-17
People / Organizations
Time 4:50 PM
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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 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, Red Rock Reservoir, Marion Co., IA
Location Remarks The documentation forms do not include georeferences
Habitat Gravel bar and open river
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: Herring Gull was eliminated by the light and uniform body color, brown as opposed to blackish primaries and tail band, lack of a window from above, and lack of any color to the underside of the primaries. Iceland Gull was eliminated based on the darker secondaries and wide, brown tail band. | The original documentation form event lasted from 16:50:00/17:15:00.
Occurrence Status present
Field Number 1991-32
Event Remarks Viewing Conditions: Viewed at about 100 yards in overcast skies through scope at about 25X.
Supporting Documentation
Date Digital 30 May 2017
File Type image/jpeg
Hardware / Software Epson - sheet feed