|
Records Committee review for rare bird sighting of Thayer's Gull at IPL Ponds in Pottawattamie County, 1989
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1989-10-29
|
1993-08-06
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at IPL Ponds in Pottawattamie County, IA on October 29, 1989. Includes a record review document with votes and three documentation forms submitted to the committee.
|
Grenon, Alan G.
|
Thayer's Gull
|
MidAmerican Energy Ponds
|
Iowa, Pottawattamie County, south of Council Bluffs, the north pond of the Iowa Power and Light plant's ponds, two miles north of the county line (three miles north of the Bellevue exit on I-29), just east of Interstate highway 29.
|
|
The documentation form by Alan G. Grenon forms the basis of this record. Other documentation forms by Babs Padelford and Ross Silcock were submitted. Other observers include B.J. Rose, Doug Rose, Loren Padelford as well as four unidentified observers. | Elimination of similar species: The most likely similar species are Iceland and Herring Gulls. Iceland Gull (first winter) is eliminated by the combination of the following characters: wing-tip darker than body at rest; wing-tip and secondaries darker above than remainder of wing; tail marked above by a darker band covering most of the distal portion; a possible darker area around the eye. Herring Gull (first winter) is eliminated by the combination of the following characters: wing-tip at rest brown-tan, not black; wing-tip and secondary bar tan in flight, not black; primaries with thin, pale tips; tail bar tan, not black; bill all dark; bill and head delicate; bill thin. Glaucous Gull would have been larger relative to Ring-billed Gulls, with a massive bill light with a dark tip, large head, and wing-tips and secondaries would not have been darker than other upper parts. California Gull (first winter) would have black or near-black primaries, secondaries, tail, and a mostly pale bill with a black tip. Glaucous-winged Gull and hybrids thereof eliminated by bill and head structure and body size all smaller/finer in this bird, tail and wing pattern. AG. | The original documentation form event occurred around 09:30:00 on October 29, 1989, from 11:30:00/12:15:00 and around 14:00:00 on the October 30, 1989.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull at North Overlook Beach at Red Rock Reservoir, 1989
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1989-11-06
|
1993-08-06
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at North Overlook Beach at Red Rock Reservoir in Marion County, IA on November 6, 1989. Includes a record review document with votes and a documentation form submitted to the committee.
|
Johnson, Ann
|
Thayer's Gull
|
North Overlook Park
|
North Overlook Beach, Lake Red Rock, Marion Co, IA
|
Sandy beach on man-made reservoir
|
The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: Iceland Gull - basically eliminated by darker color and narrow chocolate edges to outer primaries. Kumlien's - presence of tail band would seem to eliminate Herring - eliminated by combination of: structure and size of body and bill; shape of head; more uniform coloration above, especially lighter colored primaries; light flight feathers from below contrasting with darker wing lining; lighter color of tail band | The original documentation form event lasted from 10:30:00/10:35:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting for Thayer's Gull at Red Rock Dam, 1989
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1989-11-08
|
1993-08-06
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at Red Rock Dam in Marion County, IA on November 8, 1989. Includes a record review document with votes and a documentation form submitted to the committee.
|
Proescholdt, Beth
|
Thayer's Gull
|
Red Rock Dam
|
Red Rock
|
below dam
|
The documentation form by Beth Proescholdt is the only one submitted and forms the basis of this record. Another observer includes Mark Proescholdt. | Elimination of similar species: It was lighter + more evenly colored than a Herring Gull, larger than Ring-billed, too dark for an Iceland too small for a Glaucous. | The original documentation form event lasted from 08:50:00/09:00:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Lock and Dam 19 at Keokuk, 1989
|
Administrative records Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1989-11-24
|
1993-08-06
|
Rare birds documentation form
|
Records Committee review for two Thayer's Gulls at Lock and Dam 19 at Keokuk in Lee County, IA on November 24, 1989. Includes a record review document with votes, four photographs, and a documentation form submitted to the committee.
|
Cecil, Robert I.
|
Thayer's Gull
|
Lock Number 19
|
Behind Lock and Dam 19 at Keokuk in Lee County, Iowa (Iowa side)
|
River (Mississippi)
|
The documentation form by Robert Cecil is the only one submitted and forms the basis of this record. Other observers include John Cecil, Tom Kent, and Francis Moore. | Elimination of similar species: Only probable similar species is Herring, which has contrasty wings - dark trailing edge and darker wingtips. The Thayer's were obviously a lighter shade of brown than any Herrings present. I judged these birds to be somewhat smaller than any Herring. I could not totally rule out first year Glaucous-winged. According to NGS, Glaucous-wing has less mottling or scalloping. The Keokuk birds were obviously mottled. | The original documentation form event lasted from 11:05:00/11:30:00.
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Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Credit Island, 1989
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1989-11-24
|
1993-08-06
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at Credit Island in Scott County, IA on November 24, 1989. Includes a record review document with votes and a documentation form submitted to the committee.
|
Petersen, Peter C.
|
Thayer's Gull
|
Credit Island
|
Credit Island harbor
|
ice covered Miss. River backwater
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Jim Fuller, Brian Blevins, Corey Blevins, Lewis Blevins, Thomas H. Kent, John Daniels, and Ken Lowder. | Elimination of similar species: Herring Gull - dark brown primary tips, lacked silvery below wings. lack smudge on head | The original documentation form event lasted from 08:45:00/08:50:00 and 15:30:00/15:45:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Saylorville Dam, 1989
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1989-11-28
|
1993-08-06
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at Saylorville Dam in Polk County, IA on November 28, 1989. Includes a record review document with votes and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Thayer's Gull
|
Saylorville Dam
|
Saylorville Reservoir, Polk Co.-above dam
|
feeding with other gulls on large reservoir
|
The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. Other observers include Bob Myers. | Elimination of similar species: The size, uniform body color, pale underside of the flight feathers, and dark bill eliminates othr [sic] gulls. Iceland Gull eliminated by uniform wing color without noticeably lighter wingtips. | The original documentation form event lasted from 16:15:00/16:20:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Lock and Dam 15 in Davenport, 1989
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1989-12-17
|
1993-08-06
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at Lock and Dam 15 in Davenport in Scott County, IA on December 17, 1989. Includes a record review document with votes and a documentation form submitted to the committee.
|
Blevins, Brian L.
|
Thayer's Gull
|
Lock and Dam 15
|
Just above the Lock + Dam 15 (Davenport, Ia)
|
Frozen ice above the dam in the Mississippi River
|
The documentation form by Brian Blevins is the only one submitted and forms the basis of this record. Other observers include Corey Blevins and Lewis Blevins. | Elimination of similar species: Herring Gull - eliminated by the dark eye and by the lack of black on the primary tips. | The original documentation form event lasted from 15:30:00/15:42:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Saylorville Dam, 1989
|
Administrative records Clippings (information artifacts) Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1989-12-07
|
1993-08-06
|
Rare birds documentation form
|
Records Committee review for two Thayer's Gulls at Saylorville Dam in Polk County, IA on December 7, 1989. Includes a record review document with votes, a photocopy of a photograph on the cover page of Iowa Bird Life, and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Thayer's Gull
|
Saylorville Dam
|
Saylorville Reservoir, Polk Co.
|
large reservoir
|
The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: The size, uniform body and wing color, pale underside of the flight feathers, and tail band eliminates Herring and Glaucous/Iceland gulls, the most likely candidates for confusion. | The original documentation form event lasted from 14:04:00/16:42:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Red Rock Dam, 1990
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1990-11-21
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at Red Rock Dam in Marion County, IA on November 21, 1990. Includes a record review document with votes and a documentation form submitted to the committee.
|
Fuller, James L
|
Thayer's Gull
|
Red Rock Dam
|
Below Red Rock Dam- Marion County
|
River
|
The documentation form by Jim Fuller is the only one submitted and forms the basis of this record. Other observers include Ann Johnson, Chuck Fuller, and Jane Fuller. | Elimination of similar species: Herring Gull (first winter) compared above. [...] I first saw this bird flying, and the underwing was translucent throughout the primaries to the end of the wing (Herring Gull had dark outer primaries, although most also had a lighter window type area medial to this dark area). The bird was about the same size or a little smaller than the Herrings. The upperwing in flight was much lighter in the primaries than the first winter herrings. [...] It had a more rounded head than the herrings. [...] It's color was more uniform than the herrings and also lighter- a brownish color. There was a dark smudge around the eye. The feather edging (whitish) provided more contrast with the brown on the back than in the herrings, and the folded tail was brownish, not black. When in flight the tail band was brownish not blackish like the herrings. | The original documentation form event lasted from 13:15:00/13:45:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Lock and Dam 19 at Keokuk, 1991
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1991-02-16
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at Lock and Dam 19 at Keokuk in Lee County, IA on February 16, 1991. Includes a record review document with votes and a documentation form submitted to the committee.
|
Allen, Reid I.
|
Thayer's Gull
|
Lock Number 19
|
Lock & Dam #19 - Keokuk, Iowa
|
River channel with open water below dam extending 3/4 mile from dam
|
The documentation form by Reid Allen is the only one submitted and forms the basis of this record. Other observers include Pam Allen, Eugene Armstrong, and Eloise Armstrong. | Elimination of similar species: First-winter Herring gulls (many were present) had blackish wingtips. Juvenile Iceland gull wingtips lack dark edging on primaries as do those on Glaucous-winged Gull. | The original documentation form event lasted from approximately 10:30:00/10:50:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Red Rock Reservoir Dam, 1991
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1991-03-14
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review for two Thayer's Gulls at Red Rock Reservoir Dam in Marion County, IA on March 14, 1991. Includes a record review document with votes and two documentation forms submitted to the committee.
|
Johnson, Ann
|
Thayer's Gull
|
Red Rock Dam
|
Below dam, Red Rock Reservoir, Marion Co., IA
|
Gravel bar and open river
|
The documentation form by Ann Johnson is the one that forms the basis of this record. Another documentation form by Diane Porter was submitted. Other observers include Beth Brown and Tim Schantz. | Elimination of similar species: Herring Gull was eliminated by the light and uniform body color, brown as opposed to blackish primaries and tail band, bill and head structure, and lack of any color to the underside of the primaries. Iceland Gull was eliminated based on the darker secondaries and wide, brown tail band. | The original documentation form event lasted from 10:20:00/10:40:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Red Rock Dam, 1991
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1991-10-24
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at Red Rock Dam in Marion County, IA on October 24, 1991. Includes a record review document with votes and a documentation form submitted to the committee.
|
Johnson, Ann
|
Thayer's Gull
|
Red Rock Dam
|
Below dam, Red Rock Reservoir, Marion Co., IA
|
Gravel bar and open river
|
The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: Herring Gull was eliminated by the light and uniform body color, brown as opposed to blackish primaries and tail band, lack of a window from above, and lack of any color to the underside of the primaries. Iceland Gull was eliminated based on the darker secondaries and wide, brown tail band. | The original documentation form event lasted from 16:50:00/17:15:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Red Rock Dam, 1991
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1991-11-25
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at Red Rock Dam in Marion County, IA on November 25, 1991. Includes a record review document with votes and two documentation forms submitted to the committee.
|
Johnson, Ann
|
Thayer's Gull
|
Red Rock Dam
|
Below dam, Red Rock Reservoir, Marion Co., IA
|
Gravel bar and open river
|
The documentation form by Ann Johnson forms the basis of this record. Another documentation form by Thomas H. Kent was submitted. Other observers include Jim Fuller, Dick Tetrault, and Tim Schantz. | Elimination of similar species: Herring Gull was eliminated by the light and uniform body color, pale gray primaries, secondaries and tailband, lack of a window from above, and lack of any color to the underside of the primaries. The bird certainly had the overall coloration of a first year Iceland Gull. However, Iceland Gull was eliminated based on the darker secondaries, complete gray tail band, and the darker webs to the outer primaries from above. | The original documentation form event lasted from 16:10:00/16:50:00 on November 25, 1991 and 13:50:00/14:05:00 on November 28, 1991.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Record Committee review for rare bird sighting of Thayer's Gull at Gray's Lake, 1991
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1991-11-30
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at Gray's Lake in Polk County, IA on November 30, 1991. Includes a record review document with votes and a documentation form submitted to the committee.
|
Cecil, Robert I.
|
Thayer's Gull
|
Grays Lake
|
Gray's Lake, Des Moines, Polk County, IA
|
Lake with some open water
|
The documentation form by Bob Cecil is the only one submitted and forms the basis of this record. Another observer includes Mary Michelle Cecil. | Elimination of similar species: Herring much more "contrasty", including dark secondary bar, dark tail band, very dark towards ends of primaries. This bird was smaller than 1st wither [sic] Herring, as well as paler brown. | The original documentation form event lasted from 10:30:00/11:00:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Red Rock Dam, 1991
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1991-12-07
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at Red Rock Dam in Marion County, IA on December 7, 1991. Includes a record review document with votes and a documentation form submitted to the committee.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Thayer's Gull
|
Red Rock Dam
|
Red Rock Res., Marion Co., IA
|
below dam on river
|
The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Other observers include around twenty unidentified observers on IOU field trip. | Elimination of similar species: Much lighter and more uniform than 1st winter Herring Gulls flying in area. | The original documentation form event lasted from 08:00:00/09:00:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Lock and Dam 15 near Davenport, 1991
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1991-12-15
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review for two Thayer's Gull at Lock and Dam 15 near Davenport in Scott County, IA on December 15, 1991. Includes a record review document with votes and a documentation form submitted to the committee.
|
Blevins, Brian L.
|
Thayer's Gull
|
Lock and Dam 15
|
Lock + Dam 15 on Mississippi River
|
Mississippi River Flyway just below the Dam
|
The documentation form by Brian Blevins is the only one submitted and forms the basis of this record. Other observers include Corey Blevins, Lewis Blevins, and Peter C. Petersen. | Elimination of similar species: Herring Gull -> Immature - eliminated by the light brown color continuous all the way throughout the wingtips, thus there was not a darkening towards the wing tips. Adult - eliminated by the light mantle getting lighter towards the wingtips, with just a few grey spots on the primaries. | The original documentation form event lasted from 15:15:00/15:45:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Lock and Dam 13, 1991
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1991-12-28
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review for two Thayer's Gulls at Lock and Dam 13 in Clinton County, IA on December 28, 1991. Includes a record review document with votes and a documentation form submitted to the committee.
|
Blevins, Brian L.
|
Thayer's Gull
|
Lock and Dam 13
|
Lock + Dam 13 on Mississippi River
|
Mississippi River Flyway just Below the Dam
|
The documentation form by Brian Blevins is the only one submitted and forms the basis of this record. Other observers include Corey Blevins, Lewis Blevins, and Jennifer Anderson. | Elimination of similar species: Herring Gull -> eliminated by the light brown color continuous all the way throughout the wingtips, thus there was not a darkening towards the wing tips. The mantle was also lighter than those of the nearby Herring Gulls. | The original documentation form event lasted from 14:30:00/14:50:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Lock and Dam 15 near Davenport, 1991
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1991-12-31
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at Lock and Dam 15 near Davenport in Scott County, IA on December 31, 1991. Includes a record review document with votes and a documentation form submitted to the committee.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Thayer's Gull
|
Lock and Dam 15
|
Lock + Dam 15, Davenport, Scott Co., IA
|
Mississippi River
|
The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. | Elimination of similar species: Translucent flight feathers and upper wing pattern and lighter tail band separate from Herring Gull | The original documentation form event lasted from 14:30:00/14:35:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Iceland Gull near Lock and Dam 15 near Davenport, 1985
|
Administrative records Clippings (information artifacts) Correspondence Field notes Tables (documents)
|
Bird watching Ornithology Ornithology--Societies, etc
|
1985-12-22
|
1993-09-03
|
Rare birds documentation form
|
Records Committee review for a Iceland Gull near Lock and Dam 15 near Davenport in Scott County, IA on December 22, 1985. Includes record review documents with votes, articles in Illinois Birds and Birding as well as American Birds, correspondence about the bird sighting, and four documentation forms submitted to the committee.
|
Petersen, Peter C.
|
Iceland Gull
|
Lock and Dam 15
|
Location: Davenport. County: Scott
|
General: Chanel [sic] of Miss. R., near middle of river when standing. Specific: 1/2 - 3/4 mi. above Lock + Dam 15.
|
The documentation form by Peter C. Petersen forms the basis of this record. Other documentation forms by Ann Barker, Mary Lou Petersen, and Bill Barker were submitted. Other observers include Steve Dinsmore, Paul Martsching, Pete Wickham, Mark Brogie, Lewis Blevins, Corey Blevins, Brett Ashford, and Dale Dickinson. | Elimination of similar species: Glaucous Gull eliminated by size, wing extention [sic] well beyond tail. Flight, headshape, all emphasized by direct comparison with Glaucous Gulls. The next afternoon Bill Barker compared this bird to two different sized Glaucous Gulls and it was smaller than the smaller Glaucous Gull. Plumage lighter than Glaucous also. | The original documentation form event lasted from 11:40:00/12:10:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
|
Records Committee review for rare bird sighting of Iceland Gull near Le Claire, 1985
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1985-12-27
|
1993-09-03
|
Rare birds documentation form
|
Records Committee review for a Iceland Gull near Le Claire in Scott County, IA on December 27, 1985. Includes a record review document with votes and two documentations submitted to the committee.
|
Brogie, Mark A. Wickham, Peter P.
|
Iceland Gull
|
Le Claire
|
[...] along the Mississippi River approximately one-half mile north of the Interstate 80 bridge in Scott County, Iowa.
|
|
The documentation form by Mark Brogie and Peter P. Wickham forms the basis of this record. Another documentation form by Paul Martsching was submitted. Another observer includes Steve Dinsmore. | Elimination of similar species: [...] The bird was in the company of several Herring Gulls (Larus argentatus) and three subadult Glaucous Gulls (Larus hyperboreus). Two of the Glaucous Gulls were light plumaged birds lacking a gray mantle and, since eye color was not noted, may have been either first or early second winter birds. The third Glaucous was quite buffy and was undoubtably [sic] a first winter bird. The Iceland Gull was first observed being chased by a light-phased Glaucous and was distinctly smaller and lighter colored. It also flew with a faster wingbeat and had a more buoyant flight than that of the larger bird. Glaucous Gulls were also observed chasing Herring Gulls but at no time was intraspecific chasing observed. During several instances two Glaucous Gulls were observed resting on the water or sitting on the ice together, but the Iceland always remained isolated from these birds. At one point the Iceland Gull circled overhead at a distance of approximately 40 yards in the company of a light-phased Glaucous and an immature Herring Gull, and characteristics between the species were well noted. The plumage of the Iceland was wholly white with a faint buffy tinge, yet distinctly whiter than the Glaucous Gull. The size difference between the Glaucous and the other two species was apparent as the Iceland and Herring were of approximately equal size. The head and bill of the Iceland Gull appeared less robust in shape than the Glaucous although both species had a bicolored bill with a flesh colored base and dark tip. [...] The brown barring of the undertail coverts of the Iceland appeared heavier and more noticable [sic] than in its white-winged congeneric counterpart, and contrasted particularly with the whitish tail. | The original documentation form event lasted for approximately twenty minutes.
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
|
Records committee review for rare bird sighting of Iceland Gull at Campbell's Island in East Moline, 1974
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1974-12-02
|
1993-09-03
|
Rare birds documentation form
|
Records Committee review for an Iceland Gull at Campbell's Island in East Moline in Rock Island County, IL on December 2, 1974. Includes record review documents with votes, an article in Iowa Bird Life, summary of the review, and two documentation forms submitted to the committee.
|
Fawks, Elton
|
Iceland Gull
|
Campbells Island
|
From my residence, Campbell's Island, East Moline, Ill. 3 miles downstream from Lock & Dam 14, Mississippi River
|
First seen at mouth of Honey Creek, flowing into Miss. R.
|
The documentation form by Elton Fawks forms the basis of this record. Another documentation form by Ernie Salder was submitted. Other observer includes Mark Henderson and unidentified individuals on a Christmas Bird Count. | Elimination of similar species: Glaucous Gull | The original documentation form event lasted from 11:00:00/12:00:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
|
Records Committee review for rare bird sighting for Iceland Gull at Lock and Dam 15 near Davenport, 1990
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
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1990-03-09
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1993-07-17
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Rare birds documentation form
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Records Committee review for an Iceland Gull at Lock and Dam 15 near Davenport in Scott County, IA on March 9, 1990. Includes a record review document with votes and a documentation form submitted to the committee.
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Petersen, Peter C.
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Iceland Gull
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Lock and Dam 15
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Lock 15 - just upstream - R.I. Co. Il. + Scott Co. IA.
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Ice cake floating on Miss. R. - along shore just upstream from lock - urban area around River.
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The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. | Elimination of similar species: Glaucous Gull - bird was too small, bill entirely black. Thayer's Gull - uniform color on entire wing. | The original documentation form event lasted from 11:00:00/11:10:00.
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Iowa Ornithologists' Union | MS 166
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11
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4
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Records Committee review for rare bird sighting of Iceland Gull at Red Rock Reservoir Dam, 1991
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Administrative records Clippings (information artifacts) Correspondence Field notes Photographs
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Bird watching Ornithology Ornithology--Societies, etc
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1991-03-13
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1993-07-17
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Rare birds documentation form
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Records Committee review for an Iceland Gull at Red Rock Reservoir Dam in Marion County, IA on March 13, 1991. Includes a record review document with votes, seven photographs, an article in Iowa Bird Life, correspondence about bird sighting and review, and eleven documentation forms submitted to the committee.
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Schantz, Tim
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Iceland Gull
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Red Rock Dam
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Below Red Rock Dam, Marion County, Iowa
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The documentation form by Tim Schantz is the earliest and the one that forms the basis of this record. Other documentation forms by Jim Fuller, Ann Johnson, Thomas H. Kent, Diane Porter, Jim Sinclair, Stephen Dinsmore, James Dinsmore, Beth Proescholdt, and Mark Proescholdt were submitted later. Other observers include Dawn DeVore, Dick Tetrault, Jim Scheib, Beth Brown, Michael Porter, Eugene Armstrong, Eloise Armstrong, and many unidentified observers. | Elimination of similar species: [...] Iowa Birds mentions that there is a problem separating Iceland with Thayers. If there was any problem with this bird being anything it was a Glaucous Gull of the same age. However the bird was smaller than the Herring Gulls that were on the roost. Long wings will rule out the rare small race of Glaucous Gull. There are not to [sic] many birds that have primaries lighter than the mantle in the sitting bird.
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Iowa Ornithologists' Union | MS 166
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11
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4
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Records Committee review for rare bird sighting of Iceland Gull at Lock and Dam 14 near Le Claire, 1991
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Administrative records Clippings (information artifacts) Field notes
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Bird watching Ornithology Ornithology--Societies, etc
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1991-12-31
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1993-07-17
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Rare birds documentation form
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Records Committee review for an Iceland Gull at Lock and Dam 14 near Le Claire in Scott County, IA on December 31, 1991. Includes a record review document with votes, an article in Iowa Bird Life, and two documentation forms submitted to the committee.
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Kent, Thomas H. (Thomas Hugh), 1934-
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Iceland Gull
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Lock and Dam 14
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Lock and Dam 14, Scott Co., IA
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Mississippi River
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The documentation form by Thomas H. Kent is the earliest and the one that forms the basis of this record. Another documentation form by Jim Fuller was submitted later. Other observers include Pete Wickham, John Daniel, Chuck Fuller, Bill Dawes, and John Rutenbeck. | Elimination of similar species: At first I thought the bird might be a Glaucous Gull, but the all black bill quickly excluded that possibility. Later I confirmed that the bird was smaller than Herrings and had a bill that was too small and too short for a Glaucous. I believe that the tail band also argues against Glaucous. I next considered Thayer's Gull, but decided that the tail band was not extensive enough, that there was no secondary bar, that the wing tips were too light (both in flight and on the standing bird), and that the tertials were not dark enough on the standing bird. All of the findings were a good fit for first-winter Iceland Gull. | The original documentation form event lasted from 13:15:00/13:35:00 on December 31, 1991 and 08:55:00/10:20:00 on January 1, 1992.
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Iowa Ornithologists' Union | MS 166
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11
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4
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Records Committee review for rare bird sighting of Iceland Gull at Lock and Dam 14, 1992
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Administrative records Clippings (information artifacts) Field notes Photographs
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Bird watching Ornithology Ornithology--Societies, etc
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1992-01-04
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1994-10-18
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Rare birds documentation form
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Records Committee review for two Iceland Gulls at Lock and Dam 14 in Scott County, IA on January 4, 1992. Includes a record review document with votes, an Iowa Bird Life article, four photographs, and seven documentation forms submitted to the committee.
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Kent, Thomas H. (Thomas Hugh), 1934-
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Iceland Gull
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Lock and Dam 14
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Lock and Dam 14, Scott Co. Iowa
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Mississippi River
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The documentation form by Thomas H. Kent is the earliest and the one that forms the basis of this record. Other documentation forms by Robert Cecil, James Fuller, Ann Johnson, Peter C. Petersen, Raymond Cummins, Randall Pinkston were submitted later. Other observers include Beth Brown, Dan Dorrance, Ross Silcock, Tanya Bray, Pete Wickham, Tim Schantz, and many unidentified observers. | Elimination of similar species: The overall size, head size, bill size, and lack of dipped-in-ink effect on the bill tip exclude Glaucous Gull. I excluded Thayer's Gull because both of these birds had very light primaries (not dark webs on the outer primaries). Neither had a secondary bar or in fact any distinctive marking on the wings. The lack of tail band in the first year bird also excludes Thayer's Gull. I was impressed by the paleness of the gray mantle in the second-year bird, but have too little experience with older Thayer's Gulls to make a comparison. | The original documentation form event lasted from 11:30:00/12:30:00.
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Iowa Ornithologists' Union | MS 166
|
11
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4
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