UID
Digital Object Type Rare birds documentation form
Content DM Link https://n2t.net/ark:/87292/w9wh2dh7c
Type Text
Description Records Committee review for a Western Tanager at Spirit Lake in Dickinson County, IA on May 23, 1996. Includes a record review document with votes, an article in Iowa Bird Life, and a documentation form submitted to the committee.
Related Genres Administrative records Clippings (information artifacts) Field notes
Sort Date 1996-05-23 - 2000-11-22
People / Organizations
Time 7:15 PM
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Collection Iowa Ornithologists' Union | MS 166
Box 13
Folder 29
Contributing Institution Iowa State University Library Special Collections and University Archives
Creator / Author Thelen, Ed
Contributors Iowa Ornithologists' Union Records Committee
Topics Bird watching Ornithology Ornithology--Societies, etc
Birds Western Tanager
Locations Spirit Lake
Map
Verbatim Locality My backyard birdbath - East edge of Spirit Lake
Location Remarks The documentation forms do not include georeferences
Habitat Suburban - edge of farmland
Extent 8 pages
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. | Elimination of similar species: Female oriole - size, shape and color of beak, length of tail and color of chin. Imm. Scarlet tanager - According to Master Guide to birding Vol 3 p. 196, juvenal [sic] Scarlet tanagers resemble the female but are more variable and have bright yellow wing bars. Also according to National Geographic Bird Guide it states that the immature scarlet tanager has faint wing bars. I don't think it was an immature scarlet tanager because this time of year the bird is not in juvenal [sic] plumage and the bird I saw had prominent and strong wing bars. Also the bird I saw had a very light colored rump and also its nape was a shade lighter than its back giving the birds upper part the light-dark light sequence for its nape-back-rump. This is a characteristic of the Western Tanager. This is what Bent (1958) p 472 has to say about the plumages of the 1st year male western tanager. "There is considerable variation among individuals, these one-year old males are as a whole somewhat less brilliant than the adults. The black of the upper part is duller and more or less intermixed with greenish. The red on the head paler, less intense and more restricted in area; and the yellows decidedly duller and less brilliant." | The original documentation form event lasted from 19:15:00/19:18:00.
Occurrence Status present
Field Number 1996-23
Event Remarks Viewing Conditions: Low light cloudy. I was looking at the bird at eye level and looking down at it. Dark background 80 feet distanced (Paced it off). Observed bird w/ Swift 8.5 X 44 binoculars.
Supporting Documentation Farrand J. Audubon society master guide to birding, vol. 3, old-world warblers-sparrows. New York (NY): Alfred A. Knopf. | Bent AC. Life histories of North American blackbirds, orioles, tanagers, and allies. Washington (DC): Government Printing Office; 1958. (Smithson Inst US Nat Mus Bull; 211). | Robbins CS, Bruun B, Zim HS. Birds of North America: a guide to field identification. New York (NY): Golden Guides from St. Martin's Press. | Peterson RT. A field guide to the birds. Boston (MA): Houghton Mifflin Company. | National Geographic Society. National Geographic field guide to the birds of North America. Washington (DC): National Geographic Society.
Date Digital 15 Jun 2017
File Type image/jpeg
Hardware / Software Epson - sheet feed/flatbed