UID
Digital Object Type Rare birds documentation form
Content DM Link https://n2t.net/ark:/87292/w9tm7238n
Type Text
Description Records Committee review for one to two Pomarine Jaegers at Red Rock Reservoir in Marion County, IA on November 16, 1996. Includes a record review document with votes, an article of Iowa Bird Life, and five documentation forms submitted to the committee.
Related Genres Administrative records Clippings (information artifacts) Field notes
Sort Date 1996-11-16 - 2000-11-22
People / Organizations
Time 1:12 PM
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Data License http://creativecommons.org/publicdomain/zero/1.0
Collection Iowa Ornithologists' Union | MS 166
Box 10
Folder 15
Contributing Institution Iowa State University Library Special Collections and University Archives
Creator / Author Dinsmore, Stephen J.
Contributors Kent, Thomas H. (Thomas Hugh), 1934- Cummins, Raymond L. Edwards, Chris Iowa Ornithologists' Union Records Committee Fuller, James L
Topics Bird watching Ornithology Ornithology--Societies, etc
Birds Pomarine Jaeger
Locations Lake Red Rock
Map
Verbatim Locality Red Rock Res., Marion Co., IA
Location Remarks The documentation forms do not include georeferences
Habitat large lake
Extent 9 pages
Language(s) eng
Bibliographic Citation
Information Withheld
Individual Count 2
Occurrence Remarks The documentation form by Stephen J. Dinsmore forms the basis of this record. Other documentation forms by Jim Fuller, Thomas H. Kent, Chris Edwards, and Ray Cummins were submitted. Other observers include Tom Johnson, Dennis Henrickson, Jim Sinclair, and many unidentified other observers. | Elimination of similar species: The size, shape, and white in the primaries ruled out all gull species. The combination of size, the large bill, large amount of white on the upperwing, white color in the underpirimary coverts, and blunt-tipped central rectrices rule out juvenile Long-tailed and Parasitic jaegers. | The original documentation form event lasted from 13:12:00/13:55:00 on November 16, 1996 and 15:40:00/16:30:00 on November 27, 1996.
Occurrence Status present
Field Number 1996-55
Event Remarks Viewing Conditions: Viewing conditions were good with overcast skies. Estimated viewing distance was mostly 200-400m, but I was within 100m of the bird a couple of times. I used 10x42 binoculars and a 20-60x spotting scope.
Supporting Documentation Kaufmann K. Kaufman field guide to advanced birding. Peterson Field Guide Series. New York: Houghton Mifflin Harcourt.
Date Digital 24 May 2017
File Type image/jpeg
Hardware / Software Epson - sheet feed