UID
Digital Object Type Rare birds documentation form
Content DM Link https://n2t.net/ark:/87292/w9zs2kg4x
Type Text
Description Records Committee review for a Lesser Black-backed Gull at Elk Rock State Park in Marion County, IA on December 3, 1986. Includes a record review document with votes and a documentation form submitted to the committee.
Related Genres Administrative records Field notes
Sort Date 1986-12-03 - 1993-09-07
People / Organizations
Time 2:45 PM
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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 Petersen, Peter C.
Contributors Iowa Ornithologists' Union Records Committee
Topics Bird watching Ornithology Ornithology--Societies, etc
Birds Lesser Black-backed Gull
Locations Elk Rock State Park
Map
Verbatim Locality [...] resting on mud bar just w. of old Hwy 14 a long north edge of reservoir.
Location Remarks The documentation forms do not include georeferences
Habitat
Extent 2 pages
Language(s) eng
Bibliographic Citation
Information Withheld
Individual Count 1
Occurrence Remarks The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Gil Sandvick was another observer. | Elimination of similar species: [...] Bird slightly smaller than nearby adult Herring Gull, larger than Ring-billed Gulls surrounding it. head white with tan flecking back + mantle slaty grey, much darker than Herring Gull. | The original documentation form event lasted from 14:45:00/14:50:00.
Occurrence Status present
Field Number 1986-30
Event Remarks Viewing Conditions: [...] Seen from about 300 meters with 30-40X60 scopes + 10X40 binoculars.
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. Boston: Houghton Mifflin Company. | Farrand J. The Audubon society master guide to birding, vol. 2, gulls to dippers. New York: Alfred A. Knopf, Inc. | Grant, PJ. Gulls: a guide to identification. Cambridge, MA: Academic Press.
Date Digital 31 May 2017
File Type image/jpeg
Hardware / Software Epson - sheet feed