Records Committee review for rare bird sighting of Thayer's Gull at Lock and Dam 15 in Davenport, 1988
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1988-01-01
|
1993-08-04
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at Lock and Dam 15 in Davenport in Scott County, IA on January 1, 1988. 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 R.
|
The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Other observers include Francis Moore and Dick Kraemer. | Elimination of similar species: [...] There were many first year Herrings that were darker with dark wingtips. We also saw, but not at same time, a larger, slightly lighter gull without tail band that we identified as a first year Glaucous Gull. It was consistently larger than Herring and heavier bodied. Uniform color, white flight feathers from below separate bird from Herring. Size and tail band separate from Glaucous. | The original documentation form event lasted from 10:15:00/10:45:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
Rare bird documentation form for Lesser Black-backed Gull at Lock and Dam 14, 1995
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1995-12-24
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for Lesser Black-backed Gull at Lock and Dam 14 in Scott County, IA on December 24, 1995.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Lesser Black-backed Gull
|
Lock and Dam 14
|
Lock + Dam 14, Scott Co.
|
Mississippi R., on ice in backwater near dam
|
The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. | Elimination of similar species: Size, yellow legs, not pure black eliminates other dark-mantled gulls. | The original documentation form event lasted from 08:40:00/08:50:00 approximately.
|
Iowa Ornithologists' Union | MS 166
|
34
|
36
|
Records Committee review for rare bird sighting of Royal Tern at Pool 18 in Des Moines County, 1989
|
Administrative records Correspondence Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1989-08-20
|
1993-08-06
|
Rare birds documentation form
|
Records Committee review for a Royal Tern at Pool 18 in Des Moines County, IA on August 20, 1989. Includes a record review document with votes, correspondence relevant to the bird sighting and review, four photographs, and three documentation forms submitted to the committee.
|
Fuller, James L
|
Royal Tern
|
Pool 18
|
Sandbar in Pool #18 - Mississippi River
|
Mississippi River
|
The documentation form by Jim Fuller is the earliest and the one that forms the basis of this record. Other documentation forms by Peter C. Petersen as well as Cal Knight and Bernie Knight were submitted later. Other observers include Clint Van Fossen, Sue Clevenstine, Chuck Fuller, Eugene Armstrong, and Eloise Armstrong. | Elimination of similar species: Larger than Common or Forster's Tern (2 Fortser's were also standing in area) differed from Caspian in slightly smaller size, orange and slimmer bill, white forehead, and light underwing primaries. | The original documentation form event lasted from 19:15:00/19:30:00 on August 20, 1989 and 18:33:00/19:15:00 on August 27, 1989.
|
Iowa Ornithologists' Union | MS 166
|
11
|
14
|
Rare bird documentation form for Great Black-backed Gull at Bettendorf, 1992
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1992-02-03
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Great Black-backed Gull at Bettendorf in Scott County, IA on February 3, 1992.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Great Black-backed Gull
|
Bettendorf
|
Bettendorf, IA
|
Mississippi River
|
The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Other observers include Dick Tetrault. | Elimination of similar species: Size. All black back and wing. | The original documentation form event lasted from 15:00:00/15:30:00.
|
Iowa Ornithologists' Union | MS 166
|
34
|
38
|
Rare bird documentation form for Glaucous Gull at Lock and Dam 15 at Davenport, 1983
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1983-12-18
|
1983-12-19
|
Rare birds documentation form
|
Rare bird documentation form for two Glaucous Gulls at Lock and Dam 15 at Davenport in Scott County, IA on December 18, 1983.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Glaucous Gull
|
Lock and Dam 15
|
Lock + Dam 15, Davenport, Scott Co. Iowa
|
Mississippi River
|
The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Other observers include Mike Newlon, Carl Bendorf, Tom Staudt, Peter Petersen, and others. | Elimination of similar species: Size and large bill eliminate Iceland and Thayer's Gulls. | The original documentation form event lasted from 11:00:00/12:00:00.
|
Iowa Ornithologists' Union | MS 166
|
34
|
37
|
Rare bird documentation form for Thayer's Gull at Lock + Dam 15, 1992
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1992-01-17
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Thayer's Gull at Lock and Dam 15 in Davenport in Scott County, IA on January 17, 1992.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Thayer's Gull
|
Lock and Dam 15
|
Lock + Dam #15, Davenport, IA
|
Mississippi River
|
The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Other observers include Jim Fuller and others. | Elimination of similar species: Herring Gull-see above. | The original documentation form event lasted from 15:30:00/15:35:00.
|
Iowa Ornithologists' Union | MS 166
|
34
|
35
|
Records Committee review for rare bird sighting of Brown Pelican at Keokuk, 1982
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1982-10-18
|
1993-09-01
|
Rare birds documentation form
|
Records Committee review for two Brown Pelicans at Keokuk in Lee County, IA on October 18, 1982. Includes a record review document with votes, a summary of the records review, and two documentation forms submitted to the committee.
|
Fawks, Elton
|
Brown Pelican
|
Keokuk
|
We were stalled on Hamilton to Keokuk Bridge
|
Mississippi River
|
The documentation forms by Elton Fawks are the only ones submitted and form the basis of this record. Other observers include Margaret Flesher. | Elimination of similar species: White Pelican eliminated by color and no black primaries. Color compared to white gulls in view at the same time. | The original documentation form event lasted from 09:20:00/09:21:00.
|
Iowa Ornithologists' Union | MS 166
|
7
|
11
|
Records Committee review for rare bird sighting of Iceland Gull at Lock and Dam 14 near Le Claire, 1992
|
Administrative records Clippings (information artifacts) Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1992-01-04
|
1994-10-18
|
Rare birds documentation form
|
Records Committee review for two Iceland Gulls at Lock and Dam 14 near Le Claire in Scott County, IA on January 4, 1992. Includes a record review document with votes, two photographs, an article in Iowa Bird Life, and two documentation forms submitted to the committee.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Iceland Gull
|
Lock and Dam 14
|
Lock and Dam 14, Scott Co. Iowa
|
Mississippi River
|
The documentation form by Thomas H. Kent is the earliest and the one that forms the basis of this record. Another documentation form by Peter C. Petersen was submitted later. Other observers include Dan Dorrance 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.
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
Records Committee review for rare bird sighting of Iceland Gull at Lock and Dam 14 near Le Claire, 1991
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1991-12-31
|
1993-07-17
|
Rare birds documentation form
|
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.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Iceland Gull
|
Lock and Dam 14
|
Lock and Dam 14, Scott Co., IA
|
Mississippi River
|
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.
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
Records Committee review for rare bird sighting of Mew Gull at Lock and Dam 14, 1982
|
Administrative records Clippings (information artifacts) Correspondence Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1982-12-19
|
1993-09-01
|
Rare birds documentation form
|
Records Committee review of a Mew Gull at Lock and Dam 14 in Scott County, IA on December 19, 1982. Includes a record review document with votes, an article in Iowa Bird Life, a summary of the review, comments and correspondence on the sighting, and five documentation forms submitted to the committee.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Laughing Gull
|
Lock and Dam 14
|
Lock and Dam 14, Scott Co. Iowa
|
Mississippi River
|
The documentation form by Thomas H. Kent forms the basis of this record. Other documentation forms by Thomas J. Staudt, Peter C. Petersen, Tim Dwyer, and Francis L. Moore were submitted. Other observers include Don Moeller, Jean Moeller, Mary Lou Petersen, Bob Linden, Clark Scott, and Larry Linder. | Elimination of similar species: Separated from Ring-bill by gray head and mantle, wing-tip, size, character of terminal tail band, and bill color and shape. Separated from Franklin's by wing tip pattern (in face of nearly white tail, ie 2nd year bird) | The original documentation form event lasted from approximately 09:40:00/09:50:00 and 14:15:00/14:45:00.
|
Iowa Ornithologists' Union | MS 166
|
10
|
23
|
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 at Lock and Dam 14, 1992
|
Administrative records Clippings (information artifacts) Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1992-01-04
|
1994-10-18
|
Rare birds documentation form
|
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.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Iceland Gull
|
Lock and Dam 14
|
Lock and Dam 14, Scott Co. Iowa
|
Mississippi River
|
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.
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
Records Committee review for rare bird sighting of Thayer's Gull near Horse Island near Davenport, 1989
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1989-01-02
|
1993-08-05
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull near Horse Island near Davenport in Scott County, IA on January 2, 1989. Includes a record review document with votes and a documentation form submitted to the committee.
|
Petersen, Peter C.
|
Thayer's Gull
|
Horse Island
|
downstream tip of Enchanted Island. Davenport, Scott Co. IA
|
Mississippi River - edge of open water, Iowa side
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Brian Blevins and Corey Blevins. | Elimination of similar species: Herring Gull - eye light, wing tips black with white windows, bill larger than Thayers. California Gull - eye light, wing tips black with white windows, yellow legs. | The original documentation form event lasted from 13:35:00/13:50:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
Rare bird documentation form for Greater Scaup at Mississippi River, SW of Davenport, 1978
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1978-03-11
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for thirty-five Greater Scaups at Mississippi River (SW of Davenport) in Scott County, IA on March 11, 1978.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Greater Scaup
|
Davenport
|
Mississippi River (S.W. of Davenport)
|
Mississippi River - half open water, half ice covered
|
The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Other observers include Tom Shires. | Elimination of similar species: Lesser scaup. The head shape and wing stripe differences are noted above. | The original documentation form event lasted from 14:00:00/15:30:00.
|
Iowa Ornithologists' Union | MS 166
|
33
|
10
|
Rare bird documentation form for Greater Scaup at Princeton, 1979
|
Field notes
|
Birds--Identification Ornithology--Societies, etc Rare birds
|
1979-03-10
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for twenty Greater Scaups at Princeton in Scott County, IA on March 10, 1979.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Greater Scaup
|
Princeton
|
Mississippi River from I 80 north to Princeton
|
Mississippi River - partly ice covered lot - mostly open
|
The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Other observers include T.K. Shires. | Elimination of similar species: Lesser scaup - There were about 40 of these for direct comparison, in the same field of view at times. | The original documentation form event lasted from 13:30:00/14:00:00.
|
Iowa Ornithologists' Union | MS 166
|
33
|
10
|
Rare bird documentation form for Western Grebe at Lock and Dam 18, 1998
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1998-12-18
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Western Grebe at Lock and Dam 18 in Des Moines County, IA on December 18, 1998.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Western Grebe
|
Lock and Dam Number 18
|
above Lock and Dam 18, Des Moines Co., IA.
|
Mississippi River above dam on Iowa side.
|
The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Other observers include Jim Fuller. | Elimination of similar species: It would be hard to exclude Clark's Grebe. I don't know whether the previous observers saw it closer. The bill color and probability are the basis for calling it a Western. | The original documentation form event lasted fro 09:15:00/09:45:00.
|
Iowa Ornithologists' Union | MS 166
|
32
|
15
|
Rare bird documentation form for Red-throated Loon at Lock and Dam 18, 1998
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1998-12-18
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Red-throated Loon at Lock and Dam 18 in Des Moines County, IA on December 18, 1998. Incorrectly recorded as Lack and Dam 18 on the documentation form.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Red-throated Loon
|
Lock and Dam Number 18
|
Lack [sic] and Dam 18, Des Moines Co., IA
|
Mississippi River above dam, swimming on Iowa side
|
The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Other observers include Jim Fuller. | Elimination of similar species: Smaller and slimmer than Common, smaller bill. I could not see whether the eye was in the dark or light part of the face. The size and upturned bill argue against Pacific Loon. | The original documentation form event lasted from 09:15:00/09:45:00.
|
Iowa Ornithologists' Union | MS 166
|
32
|
8
|
Records Committee review for rare bird sighting of Lesser Black-backed Gull at South Sabula Lakes County Park, 1991
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1991-03-10
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review for a Lesser Black-backed Gull at South Sabula Lakes County Park in Jackson County, IA on March 10, 1991. Includes a record review document with votes, an article in Iowa Bird Life, and a documentation form submitted to the committee.
|
Fuller, Karole Fuller, James L
|
Lesser Black-backed Gull
|
South Sabula Lakes Park
|
South Sabula Lakes County Park, Sabula, Jackson County
|
Mississippi River backwater/harbor
|
The documentation form by Jim and Karole Fuller is the only one submitted and forms the basis of this record. | Elimination of similar species: All other adult dark mantled gulls have pink legs, except the Yellow-footed gull which is seen at the Salton Sea, and extreme southwest California. That bird has never been seen away from that area, and should be noticeably larger than a Lesser black backed gull. The European race of the Herring gull has yellow legs, and one has been seen on the east coast the past two winters. That bird should be larger, and does not have a dark mantle. | The original documentation form event lasted from 14:03:00/14:27:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
5
|
Rare bird documentation form for Glaucous Gull at Lock and Dam 15 at Davenport, 1981
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1981-01-02
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Glaucous Gull at Lock and Dam 15 at Davenport in Scott County, IA on January 2, 1981.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Glaucous Gull
|
Lock and Dam 15
|
Lock 15 Davenport IA
|
Mississippi River below dam Downtown Davenport
|
The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Other observers include William Kent. | Elimination of similar species: Iceland, Herring Gulls. | The original documentation form event lasted from 12:15:00/12:20:00.
|
Iowa Ornithologists' Union | MS 166
|
34
|
37
|
Records Committee review for rare bird sighting for Fish Crow at Port Louisa National Wildlife Refuge, 1995
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1995-04-21
|
2000-11-18
|
Rare birds documentation form
|
Records Committee review for four Fish Crows at Port Louisa National Wildlife Refuge in Louisa County, IA on April 21, 1995. Includes a record review document with votes and three documentation forms submitted to the committee.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Fish Crow
|
Port Louisa National Wildlife Refuge - Louisa Division
|
Louisa Refuge, Mark Twain NWR, Louisa Co., IA
|
Mississippi River bottoms
|
The documentation form by Thomas H. Kent is the earliest and the one that forms the basis of this record. Other documentation forms by Ann Johnson and Jim Fuller were submitted later. Other observers include Dick Tetrault, Chuck Fuller, and Tim Schantz. | Elimination of similar species: The Records Committee has not accepted two previous records of Fish Crow along the Mississippi River in Louisa County because of the difficulty in substantiating the identification. I was well aware of this, and like other committee members, I believed that they were likely present in this area. I can only say that I was watching the birds when I heard them, which eliminates the possibility that they were young American Crows. I would not want to rely on the morphologic features. I was impressed that this group stayed together in the flooded woods, which was unlike the behavior of the American Crows. | The original documentation form event lasted from 08:40:00/09:30:00 and 10:25:00/10:35:00.
|
Iowa Ornithologists' Union | MS 166
|
12
|
46
|
Rare bird documentation form for Thayer's Gull at Lock and Dam 14, 1995
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1995-01-03
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Thayer's Gull at Lock and Dam 14 in Scott County, IA on January 3, 1995.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Thayer's Gull
|
Lock and Dam 14
|
Lock and Dam 14, Scott Co., IA
|
Mississippi River dam
|
The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. | Elimination of similar species: I looked at many variable first-winter Herring Gulls today. All had more dark on wing tip and darker tail band. This bird was easy to pick out over and over again. | The original documentation form event lasted from 12:00:00/12:20:00.
|
Iowa Ornithologists' Union | MS 166
|
34
|
35
|
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
|
1991-12-15
|
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 Great Black-backed Gull at Davenport, 1989
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1989-12-13
|
1993-08-06
|
Rare birds documentation form
|
Records Committee review for a Great Black-backed Gull at Davenport in Scott County, IA on December 13, 1989. Includes a record review document with votes and two documentation forms submitted to the committee.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Great Black-backed Gull
|
Davenport
|
Davenport, Scott Co., Iowa
|
Mississippi River north of Credit Is.
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The documentation form by Thomas H. Kent forms the basis of this record. Another documentation form by Jim Fuller was submitted. | Elimination of similar species: Size, all black upper wing and back, large head and bill, pink legs eliminate all other black-backed gulls. | The original documentation form event lasted from 13:40:00/13:55:00.
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Iowa Ornithologists' Union | MS 166
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11
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8
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Rare bird documentation form for Black Scoter at Montrose, 1991
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Field notes
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Birds--Identification Ornithology Rare birds
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1991-03-30
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N/A
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Rare birds documentation form
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Rare bird documentation form for two Black Scoters at Montrose in Lee County, IA on March 30, 1991.
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Kent, Thomas H. (Thomas Hugh), 1934-
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Black Scoter
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Montrose
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Montrose, Lee County, IA
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Mississippi River Pool
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The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Other observers include Dick Tetrault. | Elimination of similar species: The only other duck with similar face pattern is Ruddy Duck. Male Ruddy Ducks in the area had white face patches, but the patches were more horizontal, bill were sloped, necks shorter, tails cocked, and much smaller in flight. Female Ruddys had a much grayer face patch and gray on the sides. | The original documentation form event lasted from 17:30:00/18:00:00.
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Iowa Ornithologists' Union | MS 166
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33
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13
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