UID
Digital Object Type Rare birds documentation form
Content DM Link https://n2t.net/ark:/87292/w9d795d3r
Type Text
Description Records Committee review of a Ferruginous Hawk at Tiegs Marsh in Story County, IA on September 29, 1985. Includes a record review document with votes, correspondence about bird sightings, an article in Iowa Bird Life, and two documentation forms submitted to the committee.
Related Genres Administrative records Clippings (information artifacts) Correspondence Field notes
Sort Date 1985-09-29 - 1993-09-03
People / Organizations
Time 9:30 AM
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Collection Iowa Ornithologists' Union | MS 166
Box 9
Folder 1
Contributing Institution Iowa State University Library Special Collections and University Archives
Creator / Author Dinsmore, Stephen J.
Contributors Alsop, Fred Iowa Ornithologists' Union Records Committee
Topics Bird watching Ornithology Ornithology--Societies, etc
Birds Ferruginous Hawk
Locations Story County
Map
Verbatim Locality Tiegs Marsh, Story County
Location Remarks The documentation forms do not include georeferences
Habitat in open cropland near a small marsh
Extent 9 pages
Language(s) eng
Bibliographic Citation
Information Withheld
Individual Count 1
Occurrence Remarks The documentation form by Steve Dinsmore is the earliest and the one that forms the basis of this record. Other documentation forms by Fred J. Alsop were submitted later. Other observers include Dr. George Brown and Paul Martsching. | Elimination of similar species: Red-tailed hawk eliminated by lack of dark bar on leading edge of underwing, position of white wing patches, white tail with rusty tip, lack of belly band, and rust color on back and wings. Rough-legged hawk eliminated by lack of wrist marks, rust color on back and wings, all white legs, unbanded tail and lack of belly band. | The original documentation form event lasted from 09:30:00/09:35:00 and 10:10:00 to 10:15:00 estimated.
Occurrence Status present
Field Number 1985-16
Event Remarks Light was good, even though it was overcast and raining lightly. Estimated viewing distance was as close as 40-50 ft. I used a B&L 20x spotting scope and Nikon 8x23 Binoculars.
Supporting Documentation
Date Digital 17 May 2017
File Type image/jpeg
Hardware / Software Epson - sheet feed