| UID |
|
| Digital Object Type |
Rare birds documentation form |
| Content DM Link |
https://n2t.net/ark:/87292/w91j9798b |
| Type |
Text |
| Description |
Rare bird documentation form for a Glaucous Gull at Black Hawk Lake in Sac County, IA on November 18, 1995. |
| Related Genres |
Field notes |
| Sort Date |
1995-11-18 - 1996-01-15 |
| People / Organizations |
|
| Time |
9:00 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 |
Huser, Bill F. |
| Contributors |
Livermore, Bob Probst, Jerry |
| Topics |
Birds--Identification Ornithology Rare birds |
| Birds |
Glaucous Gull |
| Locations |
Black Hawk Lake |
| Map |
|
| Verbatim Locality |
Blackhawk Lake, Sac County, IA |
| Location Remarks |
The documentation forms do not include georeferences |
| Habitat |
lake ice/open water |
| Extent |
1 page |
| Language(s) |
eng |
| Bibliographic Citation |
|
| Information Withheld |
|
| Individual Count |
1 |
| Occurrence Remarks |
The documentation form by Bill Huser is the only one submitted and forms the basis of this record. Other observers include Jerry Probst, Bob Livermore, Pete Ernzen, and unidentified members of the Loess Hills Audubon Society. | Elimination of similar species: Relatively few gulls have pale coloration in their immature plumages. Also, few have pale colored primaries. Those fitting this description: Iceland Gull- smaller than a Herring Gull, with a disproportionally [sic] smaller bill. 1st winter with an all dark bill. Thayer's Gull- usually darker colored over-all, with an [sic] smaller, all dark bill in immatures and usually some darker colored primaries. Glaucous-winged Gull- though having a large bill, it is all dark in 1st and 2nd winter plumages | The original documentation form event lasted from 09:00:00/09:15:00. |
| Occurrence Status |
present |
| Field Number |
|
| Event Remarks |
Viewing Conditions: excellent, direct side lighting; 50 yards; Minolta 10X50 binocs, Celestron 32X60 scope. |
| Supporting Documentation |
National Geographic Society. National geographic field guide to the birds of North America. Washington D.C.: National Geographic Society. | Harrison P. Seabirds: an identification guide. New York: Houghton Mifflin Harcourt. |
| Date Digital |
15 Dec 2017 |
| File Type |
image/jpeg |
| Hardware / Software |
Epson - sheet feed |
