UID
Digital Object Type Rare birds documentation form
Content DM Link https://n2t.net/ark:/87292/w9dj58k49
Type Text
Description Records Committee review for a Great Black-backed Gull near the Ben Butterworth Parkway in Moline in Rock Island County, IL on December 21, 1986. Includes a record review document with votes, summary of review, and six documentations submitted to the committee.
Related Genres Administrative records Field notes
Sort Date 1986-12-21 - 1993-09-07
People / Organizations
Time 3:35 PM
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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 Sandvick, Gil
Contributors Kent, Thomas H. (Thomas Hugh), 1934- Bendorf, Carl J. Moore, Francis L. Petersen, Mary Lou Petersen, Peter C. Iowa Ornithologists' Union Records Committee Fuller, James L
Topics Bird watching Ornithology Ornithology--Societies, etc
Birds Great Black-backed Gull
Locations Ben Butterworth Parkway
Map
Verbatim Locality Ben Butterworth Parkway Miss. River - Il. side
Location Remarks The documentation forms do not include georeferences
Habitat
Extent 10 pages
Language(s) eng
Bibliographic Citation
Information Withheld
Individual Count 1
Occurrence Remarks The documentation by Gil Sandvick is the earliest and the one that forms the basis of this record. Other documentations by Thomas H. Kent, James Fuller, Carl Bendorf, Mary Lou Petersen and Peter C. Petersen, and Francis Moore were submitted later. Other observers include Doris Sandvick, Carol Rogers, Tim Dwyer, Al Hahn, Cal Knight, Ann Barker, Betty Hunt, Kelly McKay, Lewis Blevins, Brian Blevins, Corey Blevins, and other unidentified observers. | Elimination of similar species: [...] It was standing with approx eight Herring gulls. "It really stood out." [...] 1. Using Robbins + Peterson books confirming Herring. Great Black-Backed and Lesser Black Gull we eliminated by size to 24"-26". 2. His overall appearance including bill, head and body seemed much larger and fuller than the Herring gulls. | The original documentation form event lasted from 15:35:00/16:05:00 on December 21, 1986 and 10:00:00/11:00:00 on December 23, 1986.
Occurrence Status present
Field Number 1986-33
Event Remarks Viewing Conditions: [...] Using a Bausch + Lomb 15-60 scope I began to take notes. [...] The sun was at our backs for perfect viewing. [...] 4. Our viewing range was 200 yards.
Supporting Documentation Robbins CS, Bruun B, Zim HS. Birds of North America: a guide to field identification. New York: Golden Guides from St. Martin's Press. | Peterson, RT. Peterson field guide to birds of North America. New York: Houghton Mifflin Harcourt.
Date Digital 01 Jun 2017
File Type image/jpeg
Hardware / Software Epson - sheet feed