UID
Digital Object Type Rare birds documentation form
Content DM Link https://n2t.net/ark:/87292/w9bc3t07n
Type Text
Description Records Committee review for a Lesser Black-backed Gull at Red Rock Lake in Marion County, IA on October 29, 1994. Includes a record review document with votes and a documentation form submitted to the committee.
Related Genres Administrative records Field notes
Sort Date 1994-10-29 - 1996-04-25
People / Organizations
Time 11:15 AM
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Collection Iowa Ornithologists' Union | MS 166
Box 11
Folder 5
Contributing Institution Iowa State University Library Special Collections and University Archives
Creator / Author Armstrong, Eugene
Contributors Iowa Ornithologists' Union Records Committee
Topics Bird watching Ornithology Ornithology--Societies, etc
Birds Lesser Black-backed Gull
Locations Lake Red Rock
Map
Verbatim Locality Red Rock Lake
Location Remarks The documentation forms do not include georeferences
Habitat Lake
Extent 2 pages
Language(s) eng
Bibliographic Citation
Information Withheld
Individual Count 1
Occurrence Remarks The documentation form by Eugene Armstrong is the only one submitted and forms the basis of this record. Other observers include Eloise Armstrong, Cal Knight, Bernie Knight, Maridel Jackson, and Barb Bettis. | Elimination of similar species: Ringbills never have a scaly pattern over the back or an all black bill. Smaller than a herring gull. Herrings only have a black bill when they are in brown juvenile plumage. 1st summer herring has a 2/3rds pink bill. | The original documentation form event lasted from 11:15:00/11:35:00.
Occurrence Status present
Field Number 1994-42
Event Remarks Viewing Conditions: Very easy looking sunlight - observed for about 20 min. by all with the aid of 20-60 power scope.
Supporting Documentation Harrison P. Seabirds: an identification guide. New York: Houghton Mifflin Harcourt. | Grant, PJ. Gulls: a guide to identification. Cambridge, MA: Academic Press.
Date Digital 01 Jun 2017
File Type image/jpeg
Hardware / Software Epson - sheet feed