UID
Digital Object Type Rare birds documentation form
Content DM Link https://n2t.net/ark:/87292/w9js9h98q
Type Text
Description Rare bird documentation form for a Dunlin at Babcock Access in Coralville Reservoir in Johnson County, IA on July 30, 1995.
Related Genres Field notes
Sort Date 1995-07-30 - 1995-07-31
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 34
Folder 24
Contributing Institution Iowa State University Library Special Collections and University Archives
Creator / Author Kent, Thomas H. (Thomas Hugh), 1934-
Contributors
Topics Birds--Identification Ornithology Rare birds
Birds Dunlin
Locations Babcock Access
Map
Verbatim Locality Coralville Res., Babcock Access, Johnson Co., Iowa
Location Remarks The documentation forms do not include georeferences
Habitat mud flats
Extent 1 page
Language(s) eng
Bibliographic Citation
Information Withheld
Individual Count 1
Occurrence Remarks The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. | Elimination of similar species: The bill and body proportions were those of a Dunlin, but the date and plumage were new for me. The streaks on the underparts, worn edging on some wing feathers, and eye line appear to be retained alternate features, while the lack of black on belly and rufous in wing are features of basic plumage. I assume that this was an adult partially molted to basic plumage. Although Dunlin is usually a late fall migrant, both Iowa and Minnesota have a few July records. According to Prater et al. (1977), nearctic birds molt before migrating; therefore, a bird in mostly basic plumage would not be unusual. White-rumped Sandpiper is exclude [sic] by the tail pattern, body proportions and bill length. Baird's Sandpiper has a shorter bill, longer tail/wing extension, slimmer profile, and browner and scaly upperparts. | The original documentation form event lasted from 14:00:00/14:45:00 approximately.
Occurrence Status present
Field Number
Event Remarks Viewing Conditions: Light: sun behind me; Distance: 30 yards; Optics: 20x scope.
Supporting Documentation National Geographic Society. National geographic field guide to the birds of North America. Washington D.C.: National Geographic Society. | Prater T, Marchant J, and Vuorinen J. Guide to the identification and ageing of holarctic waders. Norfolk (UK): British Trust for Ornithology. | Hayman P, Marchant J, & Prater T. Shore Birds. New York: Christopher Helm Publishers Ltd.
Date Digital 15 Dec 2017
File Type image/jpeg
Hardware / Software Epson - sheet feed