UID
Digital Object Type Rare birds documentation form
Content DM Link https://n2t.net/ark:/87292/w9nz80s5m
Type Image, Text
Description Records Committee review for a Laughing Gull at Red Rock Reservoir in Marion County, IA on July 17, 1991. Includes a record review document with votes, an article in Iowa Bird Life, a photocopy of a photograph, and six documentation forms submitted to the committee.
Related Genres Administrative records Clippings (information artifacts) Field notes Photographs
Sort Date 1991-07-17 - 1995-07-08
People / Organizations
Time 9:00 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 10
Folder 18
Contributing Institution Iowa State University Library Special Collections and University Archives
Creator / Author Proescholdt, Mark
Contributors Bray, Tanya Johnson, Ann Pinkston, Randall, 1956- Wilson, Barbara L. Iowa Ornithologists' Union Records Committee Fuller, James L
Topics Bird watching Ornithology Ornithology--Societies, etc
Birds Laughing Gull
Locations Lake Red Rock
Map
Verbatim Locality Red Rock Reservoir - (Marion Co.)
Location Remarks The documentation forms do not include georeferences
Habitat Mudflats near retreating water
Extent 12 pages
Language(s) eng
Bibliographic Citation
Information Withheld
Individual Count 1
Occurrence Remarks The documentation form by Mark Proescholdt forms the basis of this record. Other documentation forms by Ann Johnson, Jim Fuller, Tanya E. Bray, Barbara L. Wilson, and Randall Pinkston were submitted. Other observers include Ross Silcock, Tim Schantz, Eugene Armstrong, Eloise Armstrong, and many unidentified other observers. | Elimination of similar species: A Franklin's Gull juvenile or first-winter bird has a clear-cut blackish half-hood, a smaller bill, smaller size, and a white forehead. A juvenile Mew gull is much darker, has a thin bill, and light grayish legs. Juvenile Herring and California Gulls are much larger - larger than Ring-Billed Gulls - and lack the bright white at the base of the tail. | The original documentation form event lasted from approximately 09:00:00/09:15:00 and 11:00:00/12:10:00.
Occurrence Status present
Field Number 1991-12
Event Remarks Viewing Conditions: 1st time -> Sunny + clear, looking east into sun and then sun at an angle to our side, distance - 150 yards, 110 yards, + 80 yards. 8X30 Binocs and Kowa Scope - (Probably 20X). 2nd time -> sunny, sun at side, 130 yards + later 110 yards a bit (estimated), 8x30 Binocs, 22x Scope
Supporting Documentation National Geographic Society. National geographic field guide to the birds of North America. Washington D.C.: National Geographic Society. | Farrand J. Audubon society master guide to birding, vol. 2, gulls to dippers. New York: Alfred A. Knopf. | Peterson, RT. Peterson field guide to birds of North America. New York: Houghton Mifflin Harcourt. Peterson, RT.
Date Digital 24 May 2017
File Type image/jpeg
Hardware / Software Epson - sheet feed/flatbed