UID
Digital Object Type Rare birds documentation form
Content DM Link https://n2t.net/ark:/87292/w9610vt9z
Type Text
Description Rare bird documentation form for a Thayer's Gull at Red Rock Reservoir in Marion County, IA on November 13, 1993.
Related Genres Field notes
Sort Date 1993-11-13 - 1993-11-16
People / Organizations
Time
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 35
Contributing Institution Iowa State University Library Special Collections and University Archives
Creator / Author Cecil, Robert I.
Contributors Kent, Thomas H. (Thomas Hugh), 1934- Tetrault, Richard
Topics Birds--Identification Ornithology Rare birds
Birds Thayer's Gull
Locations Lake Red Rock
Map
Verbatim Locality Tailwaters, Red Rock Res.
Location Remarks The documentation forms do not include georeferences
Habitat Tailwaters/River
Extent 1 page
Language(s) eng
Bibliographic Citation
Information Withheld
Individual Count 1
Occurrence Remarks The documentation form by Bob Cecil is the only one submitted and forms the basis of this record. Other observers include Tom Kent and Dick Tetrault. | Elimination of similar species: 1st winter Herring Gull has a very dark secondary bar, often has lighter head, and generally has a much more 'contrastry' appearance involving darker and lighter shades of brown. Overall, the 1st winter Herring is darker brown. | The original documentation form event occurred in the afternoon.
Occurrence Status present
Field Number
Event Remarks Viewing Conditions: Perhaps 200 yards. I don't really recall viewing conditions except that they were good and allowed good views of the bird. Optics: Nikon 20x scope.
Supporting Documentation
Date Digital 15 Dec 2017
File Type image/jpeg
Hardware / Software Epson - sheet feed