| UID |
|
| Digital Object Type |
Rare birds documentation form |
| Content DM Link |
https://n2t.net/ark:/87292/w95d8nh2k |
| Type |
Text |
| Description |
Rare bird documentation form for a Lesser Black-backed Gull at Coralville Reservoir in Johnson County, IA on December 18, 1993. |
| Related Genres |
Field notes |
| Sort Date |
1993-12-18 - 1993-12-19 |
| 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 |
36 |
| Contributing Institution |
Iowa State University Library Special Collections and University Archives |
| Creator / Author |
Bendorf, Carl J. |
| Contributors |
Haldy, Lanny Ray, Dan Graesser, Randy Ray, Angela Kuenstling, Kathleen |
| Topics |
Birds--Identification Ornithology Rare birds |
| Birds |
Lesser Black-backed Gull |
| Locations |
Coralville Lake |
| Map |
|
| Verbatim Locality |
Coralville Reservoir, Johnson County, Iowa |
| Location Remarks |
The documentation forms do not include georeferences |
| Habitat |
upper reaches of the Coralville Reservoir |
| Extent |
1 page |
| Language(s) |
eng |
| Bibliographic Citation |
|
| Information Withheld |
|
| Individual Count |
1 |
| Occurrence Remarks |
The documentation form by Carl Bendorf is the only one submitted and forms the basis of this record. Other observers include Lanny Haldy, Randy Graesser, Dan Ray, Angela Ray, Kathleen Kuenstling, Randall Pinkston, Thomas Kent, Jim Fuller, and others. | Elimination of similar species: Of about 500 gulls total, nearly 90% were adult Ring-Billed Gulls and the rest were mostly winter adult and a few subadult Herring Gulls. [...] An adult gull in between the size of adjacent Ring-billed and Herring Gulls. It was noticeable larger than the Ring-bills; not too much smaller than the Herrings. It differed from the Herrings in being a little less barrel chested and a little slimmer, more horizontal in posture. | The original documentation form event occurred for 45 minutes during two sessions. |
| Occurrence Status |
present |
| Field Number |
|
| Event Remarks |
Viewing Conditions: We were in cars about 150 yards from the gulls. The sky was totally overcast but viewing conditions were reasonable. [..] I used 10X40 binoculars and a 22X spotting scope. |
| Supporting Documentation |
National Geographic Society. National geographic field guide to the birds of North America. Washington D.C.: National Geographic Society. |
| Date Digital |
15 Dec 2017 |
| File Type |
image/jpeg |
| Hardware / Software |
Epson - sheet feed |
