| UID |
|
| Digital Object Type |
Rare birds documentation form |
| Content DM Link |
https://n2t.net/ark:/87292/w9v40k198 |
| Type |
Text |
| Description |
Rare bird documentation form for two Glaucous Gulls at Lock and Dam 15 in Davenport in Scott County, IA on January 4, 1981. |
| Related Genres |
Field notes |
| Sort Date |
1981-01-04 |
| People / Organizations |
|
| Time |
9:10 AM |
| 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 |
37 |
| Contributing Institution |
Iowa State University Library Special Collections and University Archives |
| Creator / Author |
Petersen, Peter C. |
| Contributors |
Hahn, Allan C. Dwyer, Timothy L. Petersen, Mary Lou |
| Topics |
Birds--Identification Ornithology Rare birds |
| Birds |
Glaucous Gull |
| Locations |
Lock and Dam 15 |
| Map |
|
| Verbatim Locality |
Lock + Dam #15, Davenport |
| Location Remarks |
The documentation forms do not include georeferences |
| Habitat |
Miss. River ice, just above Govt. bridge obs. from Corps. of Engrs. obs. deck-inside bldg thru plate glass. |
| Extent |
2 pages |
| Language(s) |
eng |
| Bibliographic Citation |
|
| Information Withheld |
|
| Individual Count |
2 |
| Occurrence Remarks |
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Mary Lou Petersen, Alan Hahn, Tim Dwyer, Thomas H Kent, and Lewis Blevins. | Elimination of similar species: Iceland Gull - one bird too large. Both showed bill tip too distinct, head shape too flat, flight with slower wing beat & heavy bodied. | The original documentation form event lasted from 09:10:00/09:45:00. |
| Occurrence Status |
present |
| Field Number |
|
| Event Remarks |
Viewing Conditions: Distance: 100 yds. -est. Optical equipment: Zoom scope, used at 30-50X60 10x40 Binocs. |
| Supporting Documentation |
Robbins CS, Bruun B, Zim HS. Birds of North America: a guide to field identification. New York: Golden Guides from St. Martin's Press. | 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. | Janssen R. Was it a Glaucous or Iceland Gull? Loon. 1979; 51:115-117. |
| Date Digital |
15 Dec 2017 |
| File Type |
image/jpeg |
| Hardware / Software |
Epson - sheet feed |
