UID
Digital Object Type Rare birds documentation form
Content DM Link https://n2t.net/ark:/87292/w9zs2kg5d
Type Text
Description Records Committee review for rare bird sighting of a Great Black-backed Gull near Bettendorf in Scott County, IA on January 14, 1991. Includes a record review document with votes, an article in Iowa Bird Life, appraisal and comparison of relevant bird sightings, and two documentation forms submitted to the committee.
Related Genres Administrative records Clippings (information artifacts) Field notes Charts (graphic documents)
Sort Date 1991-01-14 - 1993-07-17
People / Organizations
Time 11:05 AM
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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 8
Contributing Institution Iowa State University Library Special Collections and University Archives
Creator / Author Fuller, James L
Contributors Kent, Thomas H. (Thomas Hugh), 1934- Iowa Ornithologists' Union Records Committee
Topics Bird watching Ornithology Ornithology--Societies, etc
Birds Great Black-backed Gull
Locations Bettendorf
Map
Verbatim Locality Mississippi River between Bettendorf, Iowa, and Moline, Illinois. The bird was at times in both states.
Location Remarks The documentation forms do not include georeferences
Habitat Ice floes and open water of Mississippi River.
Extent 12 pages
Language(s) eng
Bibliographic Citation
Information Withheld
Individual Count 1
Occurrence Remarks The documentation form by Jim Fuller forms the basis of this record. Another documentation form by Thomas H. Kent was submitted. Other observers include Dick Tetrault, Peter Petersen, Ann Barker, Eugene Armstrong, Eloise Armstrong, and Chuck Fuller. | Elimination of similar species: Western gull is the same size as herring gull, as is slaty backed gull and lesser black backed gull is smaller than herring. The very large legs and bill would also speak against lesser black-backed and slaty-backed. | The original documentation form event lasted from 11:05:00/11:40:00 on January 14, 1991 and 07:41:00/07:48:00 and 08:12:00/08:28:00 on January 17, 1991.
Occurrence Status present
Field Number 1991-15
Event Remarks Viewing Conditions: The first viewing was at a considerable distance, at least a half mile at all times. The second viewing was about 70 yards and 125 yards standing, and flying at that distance and farther. It was partly cloudy the first day and I was looking north in late morning. The second day it was overcast and I was looking north in early morning. A KOWA TSN4 telescope was used for standing bird, and also at times when bird was flying. Swift Audubon bincoulars [sic] (8.5x44) were also used with the flying bird.
Supporting Documentation National Geographic Society. National geographic field guide to the birds of North America. Washington D.C.: National Geographic Society. | Harrison P. Seabirds: an identification guide. New York: Houghton Mifflin Harcourt.
Date Digital 01 Jun 2017
File Type image/jpeg
Hardware / Software Epson - sheet feed