UID |
|
Digital Object Type |
Rare birds documentation form |
Content DM Link |
https://n2t.net/ark:/87292/w9qn5zc75 |
Type |
Text |
Description |
Records Committee review for a Great Cormorant at Rice Lake in Worth County, IA on September 8, 1996. Includes a record review document with votes and two documentation forms submitted to the committee. |
Related Genres |
Administrative records Field notes |
Sort Date |
1996-09-08 - 2000-11-22 |
People / Organizations |
|
Time |
11:00 AM |
Rights |
This complex item has mixed rights protection. Portions in which Iowa State University is the copyright holder are made available for non-commercial use, including sharing and adapting the work. No permission is required for non-commercial use to these portions so long as attribution is provided. All other uses of these portions, including commercial, require permission from the Iowa State University Library Special Collections and University Archives (archives@iastate.edu). (CC BY-NC 4.0 International). Portions in which Iowa State University is not the copyright holder are believed to be under copyright, but 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 |
7 |
Folder |
13 |
Contributing Institution |
Iowa State University Library Special Collections and University Archives |
Creator / Author |
Bangma, Jim |
Contributors |
Johnson, Ann Iowa Ornithologists' Union Records Committee |
Topics |
Bird watching Ornithology Ornithology--Societies, etc |
Birds |
Great Cormorant |
Locations |
Rice Lake |
Map |
|
Verbatim Locality |
Rice Lake |
Location Remarks |
The documentation forms do not include georeferences |
Habitat |
Lake |
Extent |
5 pages |
Language(s) |
eng |
Bibliographic Citation |
|
Information Withheld |
|
Individual Count |
1 |
Occurrence Remarks |
The documentation form by Jim Bangma is the earliest and the one that forms the basis of this record. Another documentation form by Ann Johnson was submitted later. | Elimination of similar species: Double-crested is smaller, with a much thinner neck. There is a noticeable transition from the thin neck to the larger head. In this bird, there was no noticeable widening from the neck to the head. Additionally, Double-crested has a proportionally much smaller and weaker bill. Double-crested's forehead slopes more evenly into the bill. While these differences may be difficult to see in single birds without comparative experience, in direct comparison they are significant. Additionally, the orange facial skin combines with the gular pouch to accentuate the overall orange color of the face. Other extralimital black cormorants can be ruled out on size alone, additionally, most have thinner necks and smaller bills than even Double-crested. | The original documentation form event lasted from 11:00:00/11:02:00. |
Occurrence Status |
present |
Field Number |
1996-44 |
Event Remarks |
Viewing conditions: Light overcast. 100 yards. 7x42 Zeiss binoculars |
Supporting Documentation |
National Geographic. Field guide to the birds of North America. 2nd Edition. Washington, DC: National Geographic Society; 1987. | Simmons KEL, Ferguson-Lees IJ, Gillmor R, Hollom PAD, Hudson R, Nicholson EM, Ogilvie MA, Olney PJS, Voous KH, Wattel J. Handbook of the birds of Europe the Middle East and North Africa. Vol. 3, waders to gulls. New York: Oxford University Press; 1983. | Farrand J. The Audubon society master guide to birding, vol. 1, loons to sandpipers. New York: Alfred A. Knopf, Inc; 1983. | Harrison P. Seabirds, an identification guide. Boston, MA: Houghton Mifflin Company; 1985. | Harrison P. A field guide to seabirds of the world. Lexington (MA): The Stephen Greene Press; 1987. | Heinzel H, Fitter RS, Parslow J. The Birds of Britain and Europe with North Africa and the Middle East. London, UK: Williams Collins Sons & Co, Ltd.; 1979 | Jonsson L. Birds of Europe with North Africa and the Middle East. Princeton, NJ: Princeton University Press; 1993. | Peterson RT, Mountfort G, Hollom PAD. A Field guide to birds of Britain and Europe, 5th edition. Boston, MA: Houghton Mifflin Company; 1993. | Peterson RT. A field guide to Western Birds. Boston, MA: Houghton Mifflin Company; 1961. |
Date Digital |
05 May 2017 |
File Type |
image/jpeg |
Hardware / Software |
Epson - sheet feed |