|
Records Committee review for rare bird sighting of Snowy Plover at Bays Branch, 1988
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1988-05-06
|
1993-08-04
|
Rare birds documentation form
|
Records Committee review of a Snowy Plover at Bays Branch Wildlife Management Area in Guthrie County, IA on May 6, 1988. Includes a record review document with votes, an article of Iowa Bird Life, and three documentation forms submitted to the committee.
|
Dinsmore, Stephen J.
|
Snowy Plover
|
Bays Branch State Wildlife Area
|
Bays Branch W.M.A., Guthrie Co.
|
feeding on mudflat area with other shorebirds
|
The documentation form by Steve Dinsmore is the earliest and the one that forms the basis of this record. Other documentation forms by Thomas H. Kent and Bob Myers were submitted later. Other observers include Ross Silcock, Francis Moore, Eugene Armstrong, and Eloise Armstrong. | Elimination of similar species: The smaller size and relatively small bill eliminated Killdeer and Wilson's Plover. The pale appearance, dark legs and bill, markings on the head, and lack of a dark breastband [sic] eliminates Semipalmated [sic] Plover. The dark legs and bill, brown (now white) rump, and dark ear patch eliminates Piping Plover. | The original documentation form event lasted from 13:34:00/13:52:00, 14:16:00/14:35:00 and 18:15:00/18:55:00.
|
Iowa Ornithologists' Union | MS 166
|
9
|
18
|
|
Rare bird documentation form for a Ross' Goose at Bays Branch Wildlife Management Area, 1998
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1998-12-22
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Ross' Goose at Bays Branch Wildlife Management Area in Guthrie County, IA on December 22, 1998.
|
Dinsmore, Stephen J.
|
Ross' Goose
|
Bays Branch State Wildlife Area
|
Bays Branch WMA Guthrie Co. IA
|
Sitting on ice with other Geese. Small amount of open water.
|
The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: Snow Geese were big with large bill that had a grin patch. | The original documentation form event lasted from 08:00:00/08:02:00.
|
Iowa Ornithologists' Union | MS 166
|
32
|
28
|
|
Rare bird documentation form for Savannah Sparrow at Bays Branch Wildlife Management Area, 1987
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1987-01-08
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Savannah Sparrow at Bays Branch Wildlife Management Area in Guthrie County, IA on January 8, 1987.
|
Dinsmore, Stephen J.
|
Savannah Sparrow
|
Bays Branch State Wildlife Area
|
Bays Branch WMA, Guthrie Co. (NW parking lot)
|
walking around on parking lot and mowed grassy area next to the lot
|
The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: Grasshopper Sparrow (very unlikely in winter) was eliminated by the longer tail and lack of a flat crown. Vesper Sparrow eliminated by the yellow lores, streaking across the entire breast, and lack of white outer tail feathers. Song Sparrow eliminated by smaller size, yellow lores, and overall lighter coloration. All longspurs eliminated by the lack of any white on the tail. | The original documentation form event lasted from 10:50:00/11:00:00.
|
Iowa Ornithologists' Union | MS 166
|
35
|
55
|
|
Rare bird documentation form for Trumpeter Swan at Bays Branch, 1994
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1994-08-06
|
1994-08-08
|
Rare birds documentation form
|
Rare bird documentation form for three Trumpeter Swans at Bays Branch in Guthrie County, IA on August 6, 1994.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Trumpeter Swan
|
Bays Branch State Wildlife Area
|
Bays Branch, Guthrie Co., IA
|
In pond area formerly used to raise Canada Geese
|
The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. | Elimination of similar species: These birds were easy to identify. | The original documentation form event occurred around 12:00:00.
|
Iowa Ornithologists' Union | MS 166
|
32
|
30
|
|
Records Committee review for rare bird sighting of Lesser Black-backed Gull at Coralville Dam, 1997
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1997-10-08
|
2000-11-24
|
Rare birds documentation form
|
Records Committee review for a Lesser Black-backed Gull at Coralville Dam in Johnson County, IA on October 8, 1997. Includes a record review document with votes and three documentation forms submitted to the committee.
|
Fuller, James L
|
Lesser Black-backed Gull
|
Coralville Dam
|
Beach at West Overlook Area just above the Coralville Reservoir Dam (Johnson County)
|
|
The documentation form by Jim Fuller forms the basis of this record. Other documentation forms by Thomas H. Kent and Chris Edwards were submitted. Other observers include James Huntington, Jim Huntington, and Chuck Fuller. | Elimination of similar species: All other dark mantled gulls in this plumage that are possible are larger and should show pinkish legs. | The original documentation form event lasted from 17:00:00/17:30:00 on October 8, 1997, 07:05:00/07:15:00 and 16:20:00/16:30:00 on October 9, 1997, and 07:01:00/07:14:00 on October 10, 1997.
|
Iowa Ornithologists' Union | MS 166
|
11
|
5
|
|
Records Committee review for rare bird sighting of Red Phalarope at Sandpiper Recreation Area at Saylorville Reservoir, 1996
|
Administrative records Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-10-13
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Red Phalarope at Sandpiper Recreation Area at Saylorville Reservoir in Polk County, IA on October 13, 1996. Includes a record review document with votes, two photos, and three documentation forms submitted to the committee.
|
Fuller, James L
|
Red Phalarope
|
Sandpiper Recreation Area
|
Beach of Sandpiper Recreation Area, Saylorville Reservoir (Polk County)
|
|
The documentation form by Jim Fuller forms the basis of this record. Other documentation forms by Stephen J. Dinsmore and Chris Edwards were submitted. Other observers include Dick Tetrault, Eugene Armstrong, Eloise Armstrong, Jane Clark, and many unidentified observers. | Elimination of similar species: Both the other phalaropes have long, needle-like bills. In addition, the Wilson's has a dark forehead, and the Red-necked is generally smaller. | The original documentation form event lasted from 17:48:00/18:10:00.
|
Iowa Ornithologists' Union | MS 166
|
10
|
12
|
|
Rare bird documentation form for Yellow-crowned Night Heron at Saylorville Reservoir dam, 1985
|
Field notes Forms (documents)
|
Birds--Identification Ornithology Rare birds
|
1985-10-11
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Yellow-crowned Night Heron at Saylorville Reservoir dam in Polk County in October 11, 1985.
|
Dinsmore, Stephen J.
|
Yellow-Crowned Night Heron
|
Saylorville Dam
|
beaver ponds below the Saylorville Reservoir dam, Polk County.
|
edge of small pond surrounded by dense Willow thickets
|
The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: The black bill, finer spotting on underparts, darker back with som [sic] gray wash on the tail, bright yellow legs, and legs protruding well beyond the tail eliminate immature Black-crowned Night heron. | The original documentation form event lasted from 17:00:00/18:00:00.
|
Iowa Ornithologists' Union | MS 166
|
32
|
23
|
|
Records Committee review for rare bird sighting of Lesser Black-backed Gull at Lock and Dam 19 in Keokuk, 1986
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1986-10-20
|
1993-09-07
|
Rare birds documentation form
|
Records Committee for a Lesser Black-backed Gull at Lock and Dam 19 in Keokuk in Lee County, IA on October 20, 1986. Includes a record review document with votes, an article in Iowa Bird Life, summary of the review, and two documentation forms submitted to the committee.
|
Cecil, Robert I.
|
Lesser Black-backed Gull
|
Lock Number 19
|
Behind dam, Lock and Dam 19, Keokuk, Iowa
|
River rapids
|
The documentation form by Robert Cecil forms the basis of this record. Another documentation form by Jim Fuller was submitted. Other observers include Chris Pilliod, Jim Sandrock, Cal Knight, Jane Fuller, Charles Fuller, and James Huntington. | Elimination of similar species: The only species I could not eliminate on the basis of field marks observed was Yellow-footed, which according to Tom Kent (telephone conversation) is not a known vagrant. More objectively, the Yellow-footed is supposed to be larger than a Herring Gull. As stated above, this bird was about the size of a Herring Gull, or perhaps a little smaller. I don't feel it was larger than a Herring Gull. Seabirds (Harrison) warns of possible confusion with dark race Herring Gull. I have not heard of this race occuring [sic] in Iowa. In any event, the foot coloring was incorrect for Herring Gull, which has pink legs in contrast to this bird's yellow legs. | The original documentation form event occurred at various times.
|
Iowa Ornithologists' Union | MS 166
|
11
|
5
|
|
Rare bird documentation form for Short-billed Dowitcher at Algona, 1988
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1988-06-26
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Short-billed Dowitcher at Algona in Kossuth County, IA on June 26, 1988.
|
Kenne, Matthew C.
|
Short-billed Dowitcher
|
Algona
|
behind Hy-Vee Store Algona, Ia. Kossuth Co.
|
almost - dry ponds / large mudflats
|
The documentation form by Matthew Kenne is the only one submitted and forms the basis of this record. | Elimination of similar species: Long-billed Dowitcher is (supposed to be) rustier below through the belly, with bars not spots on the side of the breast, and more spots on the throat. The call is completely different than what I heard. | The original documentation form event lasted from 18:00:00/18:30:00.
|
Iowa Ornithologists' Union | MS 166
|
34
|
26
|
|
Rare bird documentation form for Whimbrel at Algona, 1988
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1988-06-26
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Whimbrel at Algona in Kossuth County, IA on June 26, 1988.
|
Kenne, Matthew C.
|
Whimbrel
|
Algona
|
behind HyVee Store Algona, Kossuth, Co. Ia.
|
almost - dry ponds / large mudflats
|
The documentation form by Matthew Kenne is the only one submitted and forms the basis of this record. Other observers include Karla Kenne. | Elimination of similar species: wrong sizes, no head stripes and lack of records eliminate long-billed curlew + eskimoe [sic] curlew lack of head stripes + upturned bills eliminate godwits no underwing marking seen, but willet has straight bill + no head stripes | The original documentation form event lasted from 15:15:00/15:40:00.
|
Iowa Ornithologists' Union | MS 166
|
34
|
12
|
|
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
|
|
Rare bird documentation form for Thayer's Gull at Lock and Dam 19, 1990
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1990-11-06
|
1990-11-09
|
Rare birds documentation form
|
Rare bird documentation form for a Thayer's Gull at Lock and Dam 19 in Keokuk in Lee County, IA on November 6, 1990.
|
Cecil, Robert I.
|
Thayer's Gull
|
Lock Number 19
|
Behind Lock and Dam 19 at Keokuk, Lee County, Iowa
|
River
|
The documentation form by Robert Cecil is the only one submitted and forms the basis of this record. | Elimination of similar species: Too small, to [sic] uniform in color for Herring. Slight darkening at wingtips eliminates Iceland. | The original documentation form event lasted from 07:45:00/08:00:00 and 13:30:00/13:40:00.
|
Iowa Ornithologists' Union | MS 166
|
34
|
35
|
|
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
|
|
Rare bird documentation form for Black-legged Kittiwake at Lake Red Rock, 1988
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1988-11-27
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Black-legged Kittiwake at Lake Red Rock in Marion County, IA on November 27, 1988.
|
Johnson, Ann
|
Black-legged Kittiwake
|
Lake Red Rock
|
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: The only other gull with a black collar, the red-legged kittiwake, was eliminated because of the black wing strip and tail band. | The original documentation form event lasted from 16:02:00/16:48:00.
|
Iowa Ornithologists' Union | MS 166
|
34
|
40
|
|
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
|
|
Rare bird documentation form for Lesser Black-backed Gull at Red Rock Dam, 1997
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1997-12-27
|
1997-12-30
|
Rare birds documentation form
|
Rare bird documentation form for a Lesser Black-backed Gull at Red Rock Dam in Marion County, IA on December 27, 1997.
|
Proescholdt, Mark
|
Lesser Black-backed Gull
|
Red Rock Dam
|
Below dam at Red Rock - (Marion County)
|
Gravel Bar below dam and churning water
|
The documentation form by Mark Proescholdt is the only one submitted and forms the basis of this record. Other observers include Dale Fye, Helen Fye, Pat Miller, and many others. | Elimination of similar species: The other black mantled gulls (Great Black-backed, Slaty-backed, Western, and Yellow-footed) are all much larger than this gull. | The original documentation form event lasted from approximately 10:20:00/11:10:00 and 13:30:00/14:15:00.
|
Iowa Ornithologists' Union | MS 166
|
34
|
36
|
|
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
|
|
Rare bird documentation form for Black-legged Kittiwake at Red Rock Dam, 1988
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1988-11-27
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Black-legged Kittiwake at Red Rock Dam in Marion County, IA on November 27, 1988.
|
Sinclair, Jim
|
Black-legged Kittiwake
|
Red Rock Dam
|
Below dam at Red Rock, Marion Co.
|
on water and flying about spillway area
|
The documentation form by Jim Sinclair is the only one submitted and forms the basis of this record. Other observers include Taylor Sinclair. | Elimination of similar species: [...] smaller than present Ring-bills larger than Bonaparte's. | The original documentation form event lasted from 09:50:00/10:05:00.
|
Iowa Ornithologists' Union | MS 166
|
34
|
40
|
|
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
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Records Committee review for rare bird sighting of Thayer's Gull at Red Rock Dam, 1991
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Administrative records Field notes
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Bird watching Ornithology Ornithology--Societies, etc
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1991-10-24
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1993-07-17
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Rare birds documentation form
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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.
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Johnson, Ann
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Thayer's Gull
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Red Rock Dam
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Below dam, Red Rock Reservoir, Marion Co., IA
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Gravel bar and open river
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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.
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Iowa Ornithologists' Union | MS 166
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11
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3
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Records Committee review for rare bird sighting of Thayer's Gull at Red Rock Reservoir Dam, 1991
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Administrative records Field notes
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Bird watching Ornithology Ornithology--Societies, etc
|
1991-03-14
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1993-07-17
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Rare birds documentation form
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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.
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Johnson, Ann
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Thayer's Gull
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Red Rock Dam
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Below dam, Red Rock Reservoir, Marion Co., IA
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Gravel bar and open river
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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.
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Iowa Ornithologists' Union | MS 166
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11
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3
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