| UID |
|
| Digital Object Type |
Rare birds documentation form |
| Content DM Link |
https://n2t.net/ark:/87292/w9c24qq1h |
| Type |
Text |
| Description |
Rare bird documentation form with additional notes for a White-winged Scoter at DeSoto Bend National Wildlife Refuge in Harrison County, IA on March 14, 1987. |
| Related Genres |
Field notes |
| Sort Date |
1987-03-14 - 1987-05-20 |
| People / Organizations |
|
| Time |
2:00 PM |
| 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 |
33 |
| Folder |
12 |
| Contributing Institution |
Iowa State University Library Special Collections and University Archives |
| Creator / Author |
Fix, Andrew S. |
| Contributors |
Harms, Craig Alan |
| Topics |
Birds--Identification Ornithology Rare birds |
| Birds |
White-winged Scoter |
| Locations |
DeSoto National Wildlife Refuge |
| Map |
|
| Verbatim Locality |
Iowa part of DeSoto Bend National Wildlife Refuge |
| Location Remarks |
The documentation forms do not include georeferences |
| Habitat |
water, along shore until alerted, then swam further out and finally flew off |
| Extent |
5 pages |
| Language(s) |
eng |
| Bibliographic Citation |
|
| Information Withheld |
|
| Individual Count |
1 |
| Occurrence Remarks |
The documentation form by Andrew S. Fix is the only one submitted and forms the basis of this record. Other observers include Craig Harms. | Elimination of similar species: By general shape, bill characteristic, and color this bird was identified as a scoter. The white/creamish spot between the cere and eye and lack of pale cheeks and throat ruled out the Black Scoter; the bill was Also too extended up the forward part of head for a Black Scoter. I did not feel comfortable differentiating Surf from White-winged based on the morphology of the head. No white wing patch was evident while this bird was on the water. In my experience (see #14), the white patches on the heads of female and immature scoters are very unreliable and highly variable. Fortunately the two key characteristics were plainly visible when the bird flew; paddling along the water for a short distance (confirmed scoter), and prominent white secondaries (confirmed white-winger scoter) | The original documentation form event lasted from 14:00:00/14:15:00. |
| Occurrence Status |
present |
| Field Number |
|
| Event Remarks |
Viewing Conditions: Distance: 75-100 ft - just offshore. Equipment: 20X Bushnell scope on tripod. Light: more overcast |
| Supporting Documentation |
Peterson RT. A field guide to eastern Birds. Boston, MA: Houghton Mifflin Company. |
| Date Digital |
28 Nov 2017 |
| File Type |
image/jpeg |
| Hardware / Software |
Epson - sheet feed |
