UID
Digital Object Type Rare birds documentation form
Content DM Link https://n2t.net/ark:/87292/w9hq3s20r
Type Text
Description Records Committee review for a MacGillibray's Warbler at Moorehead Park in Ida County, IA on September 7, 1997. Includes a record review document with votes and a documentation submitted to the committee.
Related Genres Administrative records Field notes
Sort Date 1997-09-07 - 2000-11-24
People / Organizations
Time
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Collection Iowa Ornithologists' Union | MS 166
Box 13
Folder 26
Contributing Institution Iowa State University Library Special Collections and University Archives
Creator / Author Ernzen, Peter
Contributors Iowa Ornithologists' Union Records Committee
Topics Bird watching Ornithology Ornithology--Societies, etc
Birds MacGillivray's Warbler
Locations Moorehead Pioneer Park
Map
Verbatim Locality [...] path near the Maple river at Moorehead Park
Location Remarks The documentation forms do not include georeferences
Habitat
Extent 3 pages
Language(s) eng
Bibliographic Citation
Information Withheld
Individual Count 1
Occurrence Remarks The documentation by Peter Ernzen is the only one submitted and forms the basis of this record. | Elimination of similar species: [...] I initially thought that the bird was a Mourning Warbler - common at Moorehead Park at this time of the year in this type of habitat. [...] I observed a broken eye ring on both sides of the head of this bird. The broken eye ring could best be described as " two bold white crescents" - above and below the eye. The other feature which stuck in my mind was the relatively long looking - "longer looking than Mourning" - tail on this particular bird. At first I tried to dismiss this bird as a nontypical Mourning Warbler. I have seen on several occasions Mourning warblers with slight eye rings - making identification of fall Connecticut and irregular Mourning warblers somewhat difficult. For the next week I returned to the spot hoping for a glimpse of the bird. This proved useless. I had hoped to see this bird as my notes were rather sketchy and incomplete. Consisting primarily of "bird with 2 bold white crescents" around the eyes, and "appeared longer tailed than Mourning". Otherwise the bird looked very similar to a fall male mourning warlber [sic]. | The original documentation form event occurred in the afternoon and lasted around 10 seconds.
Occurrence Status present
Field Number 1997-46
Event Remarks Viewing Conditions: [...] when I noticed a warbler in the brush approximately 15 feet from me. The bird flew up to a downed tree and proceeded to scold me (I would estimate a viewing time of 10 seconds). [...] I was somewhat perplexed as I focused my 10 x 50 binoculars on the bird.
Supporting Documentation National Geographic Society. National Geographic field guide to the birds of North America. Washington (DC): National Geographic Society. | 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. | Kaufmann K. Kaufman field guide to advanced birding. Peterson Field Guide Series. New York (NY): Houghton Mifflin Company. | Proescholdt M. MacGillivray's warbler in Hardin County. Iowa Bird Life. 1995;67(2):65.
Date Digital 15 Jun 2017
File Type image/jpeg
Hardware / Software Epson - sheet feed