|
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.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Magnificent Frigatebird at Red Rock Reservoir, 1988
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc Wildlife conservation
|
1988-10-02
|
1993-08-04
|
Rare birds documentation form
|
Record Committee review of a Magnificent Frigatebird at Red Rock Reservoir in Marion County on October 2, 1988. Includes a record review document with votes, an article from Iowa Bird Life, an introductory letter from Ann Johnson, and a documentation form submitted to the committee.
|
DeVore, Dawn L.
|
Magnificent Frigatebird
|
Lake Red Rock
|
Behind Visitor Center at Lake Red Rock, Marion Co., IA
|
Freshwater lake shore
|
The documentation form by Dawn L. DeVore is the earliest and the one that forms the basis of this record. | Elimination of similar species: After getting the bird book, I took my knowledge of the birds in the area and my mental picture and went to work. I ruled out the turkey vulture because the bird was too streamlined like a tern. I looked at the terns, soon realizing that there were no almost completely black terns. Thus I turned to the gulls. I knew it had to be a water area type bird because of its body and bill shape. Remembering the bill I quickly ruled out the gulls. Thus I turned to the cormorants but the tail was wrong, the neck was too long and more so the cormorant was out of the picture. Thinking I recalled hearing about a sighting of a rare bird in Iowa, only the night before had I looked at an outline of its body shape. Bingo! That was it! The shapes matched but what was the name? I went through the bird section page by page. Then there it was - the Magnificent Frigatebird. This was it; almost all black, large yet streamlined, "forked" or V shaped "tail", and that unique bill. Then the fact that the bird I saw had no red and two side by side white breast areas confirmed that it was a female Magnificent Frigatebird. | The original documentation form event lasted from 12:45:00/12:50:00.
|
Iowa Ornithologists' Union | MS 166
|
7
|
15
|
|
Records Committee review for rare bird sighting of Iceland Gull at Centennial Bridge at Davenport, 1993
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1993-02-07
|
1995-07-08
|
Rare birds documentation form
|
Records Committee review for an Iceland Gull at Centennial Bridge at Davenport in Scott County, IA on February 7, 1993. Includes a record review document with votes and a documentation form submitted to the committee.
|
Fuller, James L
|
Iceland Gull
|
Centennial Bridge
|
Below Centennial Bridge, Mississippi River, Scott County.
|
|
The documentation form by Jim Fuller is the only one submitted and forms the basis of this record. Another observer includes Jim Scheib. | Elimination of similar species: This bird was much too small for a Glaucous Gull, and the generally whiter cast and two-toned bill would suggest a second-winter, compared to first-winter Iceland. | The original documentation form event lasted from 14:55:00/15:00:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Red Rock Dam, 1988
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1988-12-13
|
1993-08-04
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at Red Rock Dam in Marion County, IA on December 13, 1988. 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 - Lake Red Rock, Marion Co, IA
|
dam on Des Moines River forming reservoir; open river with islands
|
The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: Ring-billed eliminated by size and leg color. Herring eliminated by head shape and eye color. Iceland eliminated by eye color, mantle color, and size and shape of head. | The original documentation form event lasted from 15:01:00/15:03:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting for Ross's Gull at Red Rock Dam, 1997
|
Administrative records Clippings (information artifacts) Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1997-12-13
|
2000-11-24
|
Rare birds documentation form
|
Records Committee review for a Ross's Gull at Red Rock Dam in Marion County, IA on December 13, 1997. Includes a record review document with votes, three photographs, an article in Field Notes, excerpts from Iowa Bird Life, and six documentation forms submitted to the committee.
|
Sinclair, Jim
|
Ross's Gull
|
Red Rock Dam
|
below dam at Red Rock
|
|
The documentation form by Jim Sinclair forms the basis of this record. Other documentation forms by Chris Edwards, Michael D. Overton, Mark Proescholdt, Thomas H. Kent, and Jim Fuller were submitted. Other observers include Chris Fuller, Chuck Fuller, Jim Dinsmore, Aaron Brees, Bob Domalgoski, Jerry O'Brien, James Huntington, John Cordell, Rick Hollis, Cal Knight, Bernie Knight, James Durbin, Joyce Durbin, Ann Johnson, Hank Zaletel, Alan Miller, Jan Walter, Dixie Overton, Curt Nelson, Jim Sandrock, Rick Trief, Chris Caster, Eugene Armstrong, Eloise Armstrong, Pam Allen, Reid Allen, and other unidentified observers. | Elimination of similar species: nothing else really looks like a Ross' Gull | The original documentation form event lasted from 08:15:00/08:25:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
11
|
|
Records Committee review for rare bird sighting of Black-legged Kittiwake at Red Rock Dam, 1989
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1989-12-09
|
1993-08-06
|
Rare birds documentation form
|
Records Committee review of a Black-legged Kittiwake at Red Rock Dam in Marion County, IA on December 9, 1989. Includes a record review document with votes and four documentation forms submitted to the committee.
|
Proescholdt, Mark
|
Black-legged Kittiwake
|
Red Rock Dam
|
Below Dam at Red Rock Reservoir - (Marion Co.)
|
Gravel Bars and flowing water
|
The documentation form by Mark Proescholdt forms the basis of this record. Other documentation forms by Jim Fuller, Steve Dinsmore, and Ann Johnson were submitted. Other observers include Eugene Armstrong, Eloise Armstrong, Pam Allen, Reid Allen, Chuck Fuller, and Bob Myers. | Elimination of similar species: Bonaparte's Gull is smaller and lacks the black bar across the nape and also lacks the blackish bars across the inner wings. | The original documentation form event occurred from 14:00:00/14:20:00 and again around 15:20:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
10
|
|
Records Committee review for rare bird sighting of Iceland Gull at Red Rock Dam, 1996
|
Administrative records Correspondence Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-04-06
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for an Iceland Gull at Red Rock Dam in Marion County, IA on April 6, 1996. Includes a record review document with votes, correspondence about bird sightings, and a documentation form submitted to the committee.
|
Sinclair, Jim
|
Iceland Gull
|
Red Rock Dam
|
below dam at Red Rock, Marion Co.
|
D.M. River
|
The documentation form by Jim Sinclair is the only one submitted and forms the basis of this record. | Elimination of similar species: This bird did not have the large headed, large billed 'predatory' look of a Glaucous Gull. The overall lightness and the lack of dark primaries and no tail band would eliminate Thayers Gull. | The original documentation form event lasted from 10:54:00/10:56:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
|
Records Committee review for rare bird sighting for Black-legged Kittiwake at Saylorville Reservoir Dam, 1984
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1984-11-21
|
1993-09-01
|
Rare birds documentation form
|
Records Committee review for a Black-legged Kittiwake at Saylorville Reservoir Dam in Polk County, IA on November 21, 1984. Includes a record review document with votes and four documentation forms submitted to the committee.
|
Thompson, Dennis
|
Black-legged Kittiwake
|
Saylorville Dam
|
Below dam at Saylorville Res. Polk Co. Iowa
|
General: outlet below the dam. Feeding in the fast-moving water directly Specific: below the dam.
|
The documentation form by Dennis Thompson forms the basis of this record. Other documentation forms by Francis L. Moore, Beth Proescholdt, and Mark Proescholdt were submitted. Other observers include Eugene Armstrong, Eloise Armstrong, Margaret Brooke, Pauline Mooney, and Richard Mooney. | Elimination of similar species: Similar in shape + actions to Bonaparte's. No direct comparison was available, but seemed larger, I'd say half-way in size between Bonaparte's + Ring-billed. Black legs, black half-collar, and lack of carpal bar helped eliminate Bonapartes. Gray back took care of Sabine's, white head, Franklin's. | The original documentation form event lasted from 10:00:00/10:30:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
10
|
|
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
|
|
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 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 Lock and Dam 19 in Keokuk, 1987
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1987-01-03
|
1993-09-07
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at Lock and Dam 19 in Keokuk in Lee County, IA on January 3, 1987. Includes a record review document with votes and two documentation forms submitted to the committee.
|
Moore, Francis L.
|
Thayer's Gull
|
Lock Number 19
|
Below lock and dam 19, Keokuk, Lee Co., Iowa
|
Open water below lock and dam 19
|
The documentation form by Francis L. Moore forms the basis of this record. Another documentation form by Steve Dinsmore was submitted. Another observer includes Robert Cecil. | Elimination of similar species: Herring Gull has more black in the primaries with a grayer mantle, a larger bill and heavier and bigger head. The under surface of the primaries of a Herring is also darker and has the darkness well into the primaries from the tips. | The original documentation form event lasted from 10:30:00/10:40:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Red Rock Dam, 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 Lesser Black-backed Gull at Red Rock Dam, 1996
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-11-27
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Lesser Black-backed Gull at Red Rock Dam in Marion County, IA on November 27, 1996. Includes a record review document with votes and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Lesser Black-backed Gull
|
Red Rock Dam
|
below Red Rock dam, Marion Co., IA
|
dam tailwaters
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: The most similar-appearing species is first-basic Herring Gull. The combination of slightly smaller size, longer wings, whiter rump, more speckled mantle, contrast between the darker mantle and lighter head, and darker upperwings lacking a pale "window" eliminated Herring Gull in first-basic plumage. | The original documentation form event lasted from 15:22:00/15:40:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
5
|
|
Records Committee review for rare bird sighting of Iceland Gull at Red Rock Reservoir Dam, 1991
|
Administrative records Clippings (information artifacts) Correspondence Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1991-03-13
|
1993-07-17
|
Rare birds documentation form
|
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.
|
Schantz, Tim
|
Iceland Gull
|
Red Rock Dam
|
Below Red Rock Dam, Marion County, Iowa
|
|
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.
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
|
Records committee review for rare bird sighting of Lesser Black-backed Gull at Red Rock Dam, 1989
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1989-10-05
|
1993-08-06
|
Rare birds documentation form
|
Records committee review for a Lesser Black-backed Gull at Red Rock Dam in Marion County, IA on October 5, 1989. Includes a record review document with votes and four documentation forms submitted to the committee.
|
Johnson, Ann
|
Lesser Black-backed Gull
|
Red Rock Dam
|
Below Red Rock Dam, near Pella, Marion Co., IA
|
River with numerous sand and gravel bars
|
The documentation form by Ann Johnson forms the basis of this record. Other documentation forms by Jim Sinclair, Raymond Cummins, and James Fuller were submitted. Other observers include Marlys Huff, David Youngblut, Pete Wickham, John Daniel, and Ken Lowder. | Elimination of similar species: Great Black-backed Gull- The bird was not large enough nor was the bill as massive. The great black-backed should also show a whiter head and lighter inner primaries and the back would be more of a checkerboard than the scaliness of this bird. Herring Gull- Because of variability, eliminating the herring was more problematic. Size was not particularly helpful initially in that this bird was near the second-year herring gull for such a brief time that I really couldn't make comparison. The variable sizes of ring-bills were of no help because next to some it looked huge and next to others it was only some larger. Some subtle differences were helpful in making this bird "look different" but I don't believe they could be considered sufficient. The checkered, scaly look was more pronounced than most juvenile herrings. The wings seemed long as they extended beyond the tail. The bill was entirely black and the tail band more distinct than most juvenile herrings. The color distinction between the head/tail and body from a distance were also helpful. The clincher, however, was during flight when no "windows" were visible on the inner primaries and the dark secondary coverts created a wide, dark trailing edge to the wing. These flight indicators, as well as size differential, were confirmed on the 23 October sighting. | The original documentation form event lasted from 15:10:00/16:00:00 and 16:15:00/16:40:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
5
|
|
Records Committee review for rare bird sighting of Mew Gull at Red Rock Reservoir Dam, 1994
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1994-12-11
|
1996-04-25
|
Rare birds documentation form
|
Records Committee review of a Mew Gull at Red Rock Reservoir Dam in Marion County, IA on December 11, 1994. Includes a record review document with votes, an article in Iowa Bird Life, and four documentation forms submitted to the committee.
|
Dinsmore, Stephen J.
|
Mew Gull
|
Red Rock Dam
|
below Red Rock Reservoir dam, Marion Co., IA
|
spillway
|
The documentation form by Steve Dinsmore forms the basis of this record. Other documentation forms by Jim Sinclair, Ray Cummins, and Thomas H. Kent were submitted. Other observers include Tim Schantz, Jim Fuller, and many unidentified observers. | Elimination of similar species: The only species with which this bird could be confused is Ring-billed Gull. The tail and wing patterns, generally darker coloration, large eye, and smaller bill all eliminate first-winter Ring-billed Gull. Identification to subspecies was based on tail pattern and more extensive dark color on head and underparts. | The original documentation form event lasted from 07:20:00/08:30:00.
|
Iowa Ornithologists' Union | MS 166
|
10
|
23
|
|
Records Committee review for rare bird sighting of Lesser Black-backed at Red Rock Reservoir Dam, 1994
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1994-12-11
|
1996-04-25
|
Rare birds documentation form
|
Records Committee review for a Lesser Black-backed Gull at Red Rock Reservoir Dam in Marion County, IA on December 11, 1994. Includes a record review document with votes and three documentation forms submitted to the committee.
|
Dinsmore, Stephen J.
|
Lesser Black-backed Gull
|
Red Rock Dam
|
below Red Rock Reservoir dam, Marion Co., IA
|
spillway below dam
|
|
Iowa Ornithologists' Union | MS 166
|
11
|
5
|
|
Records Committee review for rare bird sighting for Ivory Gull at Red Rock Reservoir Dam, 1990
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1990-12-24
|
1999-10-15
|
Rare birds documentation form
|
Records Committee review for an Ivory Gull at Red Rock Reservoir Dam in Marion County, IA on December 24, 1990. Includes a record review document with votes, an Iowa Bird Life article and front page, a page from American Birds, an article in Knoxville Journal Express, and eleven documentation forms submitted to the committee.
|
Dinsmore, Stephen J.
|
Ivory Gull
|
Red Rock Dam
|
below Red Rock Reservoir dam, Marion Co., IA
|
|
The documentation form by Steve Dinsmore forms the basis of this record. Other documentation forms by Ann Johnson, Mark Proescholdt, Randall Pinkston, Thomas H. Kent, Raymond Cummins, Jim Fuller, Carl Bendorf, Tanya Bray, Peter Petersen, and Diane Porter were submitted. Other observers include James Huntington, Alan Grenon, Rick Wright, Jim Scheib, Eloise Armstrong, Eugene Armstrong, Bob Myers, B.J. Rose, Ken Lowder, John Daniel, Carol Thompson, Tim Schantz, Reid Allen, Pam Allen, Beth Proescholdt, Beth Brown, Curt Nelson, Babs Padelford, Loren Padelford, Dick Tetrault, Jim Dinsmore, Kelly McKay, Mary Lou Petersen, and many unidentified observers. | Elimination of similar species: The bird was really quite distinctive and not likely to be confused with any other gull. The white plumage, black legs, bill shape and color, dark area at base of bill, and pattern of black spots on wings and body eliminates all other gulls. | The original documentation form event lasted from 13:02:00/16:54:00 on December 24, 1990.
|
Iowa Ornithologists' Union | MS 166
|
11
|
12
|
|
Records Committee review for rare bird sighting of Laughing Gull at Saylorville Dam, 1993
|
Administrative records Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1993-09-18
|
1995-07-08
|
Rare birds documentation form
|
Records Committee review for a Laughing Gull at Saylorville Dam in Polk County, IA on September 18, 1993. Includes a record review document with votes, a photograph, and a documentation form submitted to the committee.
|
Johnson, Ann
|
Laughing Gull
|
Saylorville Dam
|
Below Saylorville Dam, Polk County, IA
|
Fast moving river with many small fish
|
The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: The body and bill structure eliminated all but hooded gulls and the brown plumage indicated a first year bird. Size close to Ring-billed, in addition to plumage already described, eliminated some of the smaller hooded gulls. The most likely candidate for confusion would be the Franklin's Gull. Juvenile Franklin's shows a hooded pattern early in development rather than a brown wash on the head. Franklin's tail band would also be incomplete with white feathers showing on the outer edge. It would also show fewer dark primaries, with the inner flight feathers more approximating the mantle and inner wing color. No other small gull has this characteristic. | The original documentation form event lasted from 11:45:00/12:10:00 and 15:30:00/14:00:00 [sic].
|
Iowa Ornithologists' Union | MS 166
|
10
|
18
|
|
Records Committee review for rare bird sighting of Ross's Gull in Red Rock Dam, 1993
|
Administrative records Clippings (information artifacts) Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1993-10-31
|
1995-07-08
|
Rare birds documentation form
|
Records Committee review for a Ross's Gull in Red Rock Dam in Marion County, IA on October 31, 1993. Includes a record review document with votes, six photographs, an article in Iowa Bird Life, an article in American Birds, and eight documentation forms submitted to the committee.
|
Fuller, James L
|
Ross's Gull
|
Red Rock Dam
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Below the Red Rock Reservoir Dam (Marion County).
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The documentation form by Jim Fuller forms the basis of this record. Other documentation forms by Ann Johnson, Thomas H. Kent, Mark Proescholdt, Randy Pinkston, Peter C. Petersen, Pam Allen, and Raymond Cummins were submitted. Other observers include Pete Wickham, Dick Tetrault, Beth Brown, Tom Johnson, Jim Sinclair, Jim Durbin, Joyce Durbin, Gladys Black, Russ Widner, Ken Lowder, Brian Blevins, Kelly McKay, Reid Allen, Beth Proescholdt, Eugene Armstrong, Eloise Armstrong, and many unidentified observers. | Elimination of similar species: No other small gull has the combination of a pink wash on underparts and head, orange-red legs, very small black bill, nape line, and wedge-shaped tail. | The original documentation form event lasted from 08:35:00/11:30:00.
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Iowa Ornithologists' Union | MS 166
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11
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11
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Records Committee review for rare bird sighting of Great Black-backed Gull near the Ben Butterworth Parkway in Moline, 1986
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Administrative records Field notes
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Bird watching Ornithology Ornithology--Societies, etc
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1986-12-21
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1993-09-07
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Rare birds documentation form
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Records Committee review for a Great Black-backed Gull near the Ben Butterworth Parkway in Moline in Rock Island County, IL on December 21, 1986. Includes a record review document with votes, summary of review, and six documentations submitted to the committee.
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Sandvick, Gil
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Great Black-backed Gull
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Ben Butterworth Parkway
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Ben Butterworth Parkway Miss. River - Il. side
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The documentation by Gil Sandvick is the earliest and the one that forms the basis of this record. Other documentations by Thomas H. Kent, James Fuller, Carl Bendorf, Mary Lou Petersen and Peter C. Petersen, and Francis Moore were submitted later. Other observers include Doris Sandvick, Carol Rogers, Tim Dwyer, Al Hahn, Cal Knight, Ann Barker, Betty Hunt, Kelly McKay, Lewis Blevins, Brian Blevins, Corey Blevins, and other unidentified observers. | Elimination of similar species: [...] It was standing with approx eight Herring gulls. "It really stood out." [...] 1. Using Robbins + Peterson books confirming Herring. Great Black-Backed and Lesser Black Gull we eliminated by size to 24"-26". 2. His overall appearance including bill, head and body seemed much larger and fuller than the Herring gulls. | The original documentation form event lasted from 15:35:00/16:05:00 on December 21, 1986 and 10:00:00/11:00:00 on December 23, 1986.
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Iowa Ornithologists' Union | MS 166
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11
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8
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Records Committee review for rare bird sighting of Ferruginous Hawk at Benton Township in Fremont County, 1989
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Administrative records Field notes
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Bird watching Ornithology Ornithology--Societies, etc
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1989-01-17
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1993-08-05
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Rare birds documentation form
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Records Committee review of a Ferruginous Hawk at Benton Township in Fremont County, IA on January 17, 1989. Includes a record review document with votes, field notes of the sighting, and a documentation form submitted to the committee.
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Silcock, W. Ross
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Ferruginous Hawk
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Benton Township
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Benton TWP, Fremont Co., IA.
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Open Missouri riverbottom; soybean stubble fields
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The documentation form by Ross Silcock is the only one submitted and forms the basis of this record. | Elimination of similar species: See attached discussion. (After writing my field notes at the site of observation and returning home later I found the stnadard field guides most unhelpful. Dunne et al's discussion of Ferruginous was tremendous, indicating variation in Ferruginous Hawks, and especially in discussion of flight characteristics, 'jizz', and behavior [...] The only possibility which is realistic to consider is Redtailed [sic] Hawk, or possibly Rough-legged Hawk. While similar in 'jizz' to a rough-leg (long tail, flight with 'crooked' (=osprey-like) wings, darker mottling underneath, longish wings), Roughleg can be eliminated by the following characters - absence of characteristic underwing pattern, including significant wrist mark (Ferruginous should show this to some extent according to Dunne et al, but I did not see it; remember I did not see the underparts well), and method of hunting-I have never seen a roughleg fly this low over the ground for this long (about a mile) - much lower and more consistently so than a harrier. Regarding elimination of Red-tail - I really think it is easier to eliminate Red-tail than rough-leg based on 'jizz'. The tail was too long, was never spread, and wings were long than Red-tail's. Tail pattern and 'three points of light' combination also is never seen on a Redtail [sic], especially when viewed from above. (The similarity to Roughleg [sic] in pattern can be seen in the front end paper in Dunne et al). Habitat and behavior also are important - while Redtails [sic] are very common in Fremont County, they are definitely not common on the open Missouri bottomlands. Redtail [sic] is a bird of edge habitat. I always look closely at any buteo seen from October to April on the open bottomlands. I have never seen any other buteo fly as low to the ground for as long as this bird - when i say low, I mean 1-2 ft above the ground. At no time was the bird higher than 6', and that was when perched on possibly the lowest post for some distance. Even a Harrier will rise and fall while hunting. This bird stayed low, in the manner of a hunting Golden Eagle (which I have seen in Western Kansas) - a point also mentioned by Dunne et al. Another point noted by Dunne et al and also shown in my sketch (purposely!) and, mentioned in my field notes was the osprey-like crook in the wings-while flying low over the ground. Dunne et al note that this is characteristic of a hunting Ferruginous. | The original documentation form event lasted from 15:30:00/15:45:00.
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Iowa Ornithologists' Union | MS 166
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9
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1
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Records Committee review for rare bird sighting of Little Gull at Big Creek Lake, 1994
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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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1994-11-14
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1996-04-25
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Rare birds documentation form
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Records Committee review for a Little Gull at Big Creek Lake in Polk County, IA on November 14, 1994. Includes a record review document with votes, two photographs, an article in Iowa Bird Life, and nine documentation forms submitted to the committee.
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Dinsmore, Stephen J.
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Little Gull
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Big Creek Lake
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Big Creek Lake
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large reservoir
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The documentation form by Stephen J. Dinsmore is the earliest and the one that forms the basis of this record. Other documentation forms by Jim Dinsmore, Thomas H. Kent, Ann Johnson, Jim Fuller, Mark Proescholdt, Beth Proescholdt, Ray Cummins, and Chris Edwards were submitted later. Other observers include Bob Myers, Chris Caster, Carol Thompson, Jim Sandrock, Tim Schantz, Pam Allen, Reid Allen, Fred Brink, Phil Walsh, Dick Tetrault, Hank Zaletel, Dennis Thompson, Eugene Armstrong, Eloise Armstrong, Jane Clark, and many unidentified other observers. | Elimination of similar species: gulls. The black underwings eliminated all other gulls except Ross', which has a smaller bill and an obvious wedge-shaped tail. | The original documentation form event lasted from 10:52:00/13:08:00 and 16:20:00/16:44:00 on November 14, 1994.
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Iowa Ornithologists' Union | MS 166
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10
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20
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Records Committee review for rare bird sighting of Clark's Grebe at Big Creek Lake, 1985
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Administrative records Field notes
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Bird watching Ornithology Ornithology--Societies, etc
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1985-10-12
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1993-09-03
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Rare birds documentation form
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Records Committee review for a Clark's Grebe at Big Creek Lake in Polk County, IA on October 12, 1985. 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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Dinsmore, Stephen J.
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Clark's Grebe
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Big Creek State Park
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Big Creek SP, Polk County in middle of large lake
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in middle of large lake
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The documentation form by Steve Dinsmore is the earliest and the one that forms the basis of this record. Other documentation forms by Francis Moore were submitted later. | Elimination of similar species: Western Grebe eliminated by the white on the cheek which extended well above the eye. | The original documentation form event lasted from 16:00:00/16:30:00.
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Iowa Ornithologists' Union | MS 166
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7
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9
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