UID
Digital Object Type Rare birds documentation form
Content DM Link https://n2t.net/ark:/87292/w9hm52n4b
Type Image, Text
Description Records Committee review for a Laughing Gull at Sandpiper Beach at Saylorville Reservoir in Polk County, IA on May 10, 1996. Includes one record review document with votes, a photograph, correspondence about bird sighting, an Iowa Bird Life Article, and a documentation form submitted to the committee.
Related Genres Administrative records Clippings (information artifacts) Correspondence Field notes Photographs
Sort Date 1996-05-10 - 2000-11-22
People / Organizations
Time 12:45 PM
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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 Dinsmore, Stephen J.
Contributors Kent, Thomas H. (Thomas Hugh), 1934- Iowa Ornithologists' Union Records Committee
Topics Bird watching Ornithology Ornithology--Societies, etc
Birds Laughing Gull
Locations Sandpiper Recreation Area
Map
Verbatim Locality Saylorville Reservoir, Polk Co., IA
Location Remarks The documentation forms do not include georeferences
Habitat resting on beach with other gulls
Extent 12 pages
Language(s) eng
Bibliographic Citation
Information Withheld
Individual Count 1
Occurrence Remarks The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: The bird was clearly one of the "hooded" gulls. The combination of size, mantle color, and upperwing pattern eliminates all of the hooded gulls except for Franklin's Gull. The larger size, less obvious white eye crescents, larger and longer bill, and extensively dark tips to the underwings eliminated Franklin's Gull. | The original documentation form event lasted from 12:45:00/13:10:00.
Occurrence Status present
Field Number 1996-30
Event Remarks Viewing Conditions: Viewing conditions were excellent with the sun overhead. Estimated viewing distance was initially 100 meters, but I later approached to within 50 meters. I used a 20-60x spotting scope and 10x42 binoculars.
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