| UID |
|
| Digital Object Type |
Rare birds documentation form |
| Content DM Link |
https://n2t.net/ark:/87292/w9db7vs37 |
| Type |
Text |
| Description |
Rare bird documentation form for a Thayer's Gull at Black Hawk Lake in Sac County, IA on February 11, 1996. |
| Related Genres |
Field notes |
| Sort Date |
1996-02-11 - 1996-02-13 |
| People / Organizations |
|
| Time |
9:30 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 |
35 |
| Contributing Institution |
Iowa State University Library Special Collections and University Archives |
| Creator / Author |
Thelen, Ed |
| Contributors |
Thelen, Rob |
| Topics |
Birds--Identification Ornithology Rare birds |
| Birds |
Thayer's Gull |
| Locations |
Black Hawk Lake |
| Map |
|
| Verbatim Locality |
Black Hawk Lake Sac County |
| Location Remarks |
The documentation forms do not include georeferences |
| Habitat |
Natural Lake - near open water from aerator |
| Extent |
1 page |
| Language(s) |
eng |
| Bibliographic Citation |
|
| Information Withheld |
|
| Individual Count |
1 |
| Occurrence Remarks |
The documentation form by Ed Thelen is the only one submitted and forms the basis of this record. Other observers include Rob Thelen and Peter Ernzen. | Elimination of similar species: Herring Gull has dark lesser coverts and dark feathers under the wing tips. More distinct tail band + larger bill. | The original documentation form event lasted from 09:30:00/10:00:00. |
| Occurrence Status |
present |
| Field Number |
|
| Event Remarks |
Viewing Conditions: Fair - distance was 600 ft (est.) 45 x spotting scope |
| 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. |
| Date Digital |
15 Dec 2017 |
| File Type |
image/jpeg |
| Hardware / Software |
Epson - sheet feed |
