UID
Digital Object Type Rare birds documentation form
Content DM Link https://n2t.net/ark:/87292/w9599z455
Type Text
Description Records Committee review for a Thayer's Gull at Lock and Dam 19 in Keokuk in Lee County, IA on January 3, 1987. Includes a record review document with votes and two documentation forms submitted to the committee.
Related Genres Administrative records Field notes
Sort Date 1987-01-03 - 1993-09-07
People / Organizations
Time 10:30 AM
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Collection Iowa Ornithologists' Union | MS 166
Box 11
Folder 3
Contributing Institution Iowa State University Library Special Collections and University Archives
Creator / Author Moore, Francis L.
Contributors Dinsmore, Stephen J. Iowa Ornithologists' Union Records Committee
Topics Bird watching Ornithology Ornithology--Societies, etc
Birds Thayer's Gull
Locations Lock Number 19
Map
Verbatim Locality Below lock and dam 19, Keokuk, Lee Co., Iowa
Location Remarks The documentation forms do not include georeferences
Habitat Open water below lock and dam 19
Extent 3 pages
Language(s) eng
Bibliographic Citation
Information Withheld
Individual Count 1
Occurrence Remarks The documentation form by Francis L. Moore forms the basis of this record. Another documentation form by Steve Dinsmore was submitted. Another observer includes Robert Cecil. | Elimination of similar species: Herring Gull has more black in the primaries with a grayer mantle, a larger bill and heavier and bigger head. The under surface of the primaries of a Herring is also darker and has the darkness well into the primaries from the tips. | The original documentation form event lasted from 10:30:00/10:40:00.
Occurrence Status present
Field Number 1987-02
Event Remarks Viewing Conditions: Sunny from approx. 100-125 yds. at closest using 10x40 binoculars and 20 x 60 telescope
Supporting Documentation
Date Digital 30 May 2017
File Type image/jpeg
Hardware / Software Epson - sheet feed