UID
Digital Object Type Rare birds documentation form
Content DM Link https://n2t.net/ark:/87292/w9tm7234q
Type Text
Description Rare bird documentation form for a Lesser Black-backed Gull at Red Rock Reservoir in Marion County, IA on December 26, 1997 and December 30, 1997.
Related Genres Field notes
Sort Date 1997-12-26 - 1998-01-06
People / Organizations
Time 2:05 PM
Rights This Item is protected by copyright and/or related rights. However, for this Item, either (a) no rights-holder(s) have been identified or (b) one or more rights-holder(s) have been identified but none have been located. If you have any information that can contribute to identifying or locating the rights-holder(s) please notify the Iowa State University Library Digital Initiatives Program (digital@iastate.edu). (Rightsstatements.org InC-RUU 1.0). The original object is available at the Iowa State University Library Special Collections and University Archives (archives@iastate.edu).
Data Access Rights http://vertnet.org/resources/norms.html
Data License http://creativecommons.org/publicdomain/zero/1.0
Collection Iowa Ornithologists' Union | MS 166
Box 34
Folder 36
Contributing Institution Iowa State University Library Special Collections and University Archives
Creator / Author Dinsmore, Stephen J.
Contributors Dinsmore, James J. Niyo, Kayleen
Topics Birds--Identification Ornithology Rare birds
Birds Lesser Black-backed Gull
Locations Lake Red Rock
Map
Verbatim Locality Red Rock Reservoir, Marion Co., IA (below dam)
Location Remarks The documentation forms do not include georeferences
Habitat river below dam
Extent 1 page
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. Other observers include James J. Dinsmore, Kay Niyo, and many other observers. | Elimination of similar species: The combination of size, dark gray mantle, yellow legs and bill pattern eliminates other gulls, especially Great Black-backed, California, and Slaty-backed. | The original documentation form event lasted from 14:05:00/16:55:00 on December 26, 1997 and 13:40:00/16:05:00 on December 30, 1997.
Occurrence Status present
Field Number
Event Remarks Viewing Conditions: Viewing conditions were excellent with overcast skies. Estimated viewing distance was <100m. I used 10x42 binoculars and a 20-60x spotting scope.
Supporting Documentation Grant, PJ. Gulls: a guide to identification. Cambridge, MA: Academic Press; 1986.
Date Digital 15 Dec 2017
File Type image/jpeg
Hardware / Software Epson - sheet feed