UID
Digital Object Type Rare birds documentation form
Content DM Link https://n2t.net/ark:/87292/w9f18sh6v
Type Text
Description Records Committee review for a Laughing Gull south of Saylorville in Polk County, IA on April 24, 1993. Includes a record review document with votes, an article in Passenger Pigeon, an article in Illinois Audubon Bulletin, correspondence about the bird sighting, and a documentation form submitted to the committee.
Related Genres Administrative records Clippings (information artifacts) Correspondence Field notes
Sort Date 1993-04-24 - 1995-07-08
People / Organizations
Time 9:20 AM
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Collection Iowa Ornithologists' Union | MS 166
Box 10
Folder 18
Contributing Institution Iowa State University Library Special Collections and University Archives
Creator / Author Engebretsen, Bery
Contributors Kent, Thomas H. (Thomas Hugh), 1934- Iowa Ornithologists' Union Records Committee
Topics Bird watching Ornithology Ornithology--Societies, etc
Birds Laughing Gull
Locations Saylorville
Map
Verbatim Locality South of Saylorville
Location Remarks The documentation forms do not include georeferences
Habitat Flooded bean field (Des Moines River bottom land)
Extent 13 pages
Language(s) eng
Bibliographic Citation
Information Withheld
Individual Count 1
Occurrence Remarks The documentation form by Bery Engebretsen is the only one submitted and forms the basis of this record. Other observers include Eugene Armstrong and Eloise Armstrong. | Elimination of similar species: Bird flew & sat on ground next to Franklin's Gulls, and Bonaparte's gulls. Did not have white wedge of Bonapartes, Blackheaded or Sabine's Gull's. The other black-headed gull, the Little Gull, has no black at all on wing tips. See above for comparison to Franklin's. [...] Larger bill, compared to adjacent Franklin's, was not pure red, partially black. Eye ring smaller, less conspicuous, again, than adjacent Franklins. | The original documentation form event lasted from 09:20:00/09:40:00.
Occurrence Status present
Field Number 1993-11
Event Remarks Viewing Conditions: Bird was to West, good overcast light. About 50 yds 10x50 Binoc. 10-30x Scope
Supporting Documentation National Geographic Society. National geographic field guide to the birds of North America. Washington D.C.: National Geographic Society.
Date Digital 26 May 2017
File Type image/jpeg
Hardware / Software Epson - sheet feed/flatbed