UID
Digital Object Type Rare birds documentation form
Content DM Link https://n2t.net/ark:/87292/w9pr7mw58
Type Text
Description Records Committee review of a Trumpeter Swan at Blue Lake in Monona County, Iowa on April 10, 1994. Includes a record review document with votes and two documentation forms submitted to the committee.
Related Genres Administrative records Field notes
Sort Date 1994-04-10 - 1996-04-25
People / Organizations
Time 7:30 AM
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Collection Iowa Ornithologists' Union | MS 166
Box 8
Folder 12
Contributing Institution Iowa State University Library Special Collections and University Archives
Creator / Author Huser, Bill F.
Contributors Ernzen, Peter Iowa Ornithologists' Union Records Committee
Topics Bird watching Ornithology Ornithology--Societies, etc
Birds Trumpeter Swan
Locations Blue Lake
Map
Verbatim Locality Blue Lake, Monona County, Iowa
Location Remarks The documentation forms do not include georeferences
Habitat marshy oxbow with open, but shallow, water
Extent 4 pages
Language(s) eng
Bibliographic Citation
Information Withheld
Individual Count 1
Occurrence Remarks The documentation form by Bill Huser is the earliest and the one that forms the basis of this record. Another documentation form by Peter Ernzen was submitted later. | Elimination of similar species: Mute swans usually have a curved neck posture with the bill held below horizontal. Their springtime bill color is expected to be pink. Tundra Swans are expected to have a concave bill, a slight forehead and a smaller proportioned bill. The facial skin extending to the eye is less substantial. The neck posture is usually vertical without the 'kink' at the base. The feathered edge between the eyes forms a straight line. | The original documentation form event lasted from 07:30:00/10:30:00.
Occurrence Status present
Field Number 1994-08
Event Remarks Conditions - light, distance & optics; Minolta 10X50 binocs, Celestron 32X60 scope; direct, side lighting; estimated 300-350 yards
Supporting Documentation National Geographic Society. National geographic field guide to the birds of North America. Washington D.C.: National Geographic Society. | Peterjohn B. Identification of immature swans. Iowa Bird Life. 56(1).
Date Digital 11 May 2017
File Type image/jpeg
Hardware / Software Epson - sheet feed