Rare bird documentation form for Great Black-backed Gull at Saylorville Reservoir, 1987
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Field notes
|
Birds--Identification Ornithology Rare birds
|
1987-11-07
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1987-11-26
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Rare birds documentation form
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Rare bird documentation form for a Great Black-backed Gull at Saylorville Reservoir in Polk County, IA on November 7, 1987.
|
Dinsmore, Stephen J.
|
Great Black-backed Gull
|
Saylorville Lake
|
Saylorville Reservoir, Polk Co.-off Jester Park
|
feeding with other gulls on large reservoir
|
The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. Other observers include Andrew S. Fix. | Elimination of similar species: The large size and dark wingtips eliminates all gulls except Western and Yellow-footed. The massive, dark bill, tail pattern, and pale body color eliminates these. | The original documentation form event lasted from 10:15:00/10:20:00.
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Iowa Ornithologists' Union | MS 166
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34
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38
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Rare bird documentation form for Great Black-backed Gull at Lock and Dam 15, 1999
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Field notes
|
Birds--Identification Ornithology Rare birds
|
1999-02-06
|
1999-02-24
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Rare birds documentation form
|
Rare bird documentation form for a Great Black-backed Gull at Lock and Dam 15 in Scott County, IA on February 6, 1999.
|
Proescholdt, Mark
|
Great Black-backed Gull
|
Lock and Dam 15
|
above Lock and Dam #15 - Davenport - (Scott Co.)
|
on ice in Mississippi River with other gulls
|
The documentation form by Mark Proescholdt is the only one submitted and forms the basis of this record. Other observers include Beth Proescholdt. | Elimination of similar species: A 1st winter Lesser Black-backed Gull is much smaller - about the size of a Ring-billed Gull. This is a really big gull - bigger than other possibilities. Also, much different from 1st winter Herring Gulls. | The original documentation form event lasted from 16:00:00/16:48:00.
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Iowa Ornithologists' Union | MS 166
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34
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38
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Rare bird documentation form for Great Black-backed Gull at Lock and Dam 16, 1998
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Field notes
|
Birds--Identification Ornithology Rare birds
|
1998-12-27
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1999-01-02
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Rare birds documentation form
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Rare bird documentation form for a Great Black-backed Gull at Lock and Dam 16 in Muscatine County, IA on December 27, 1998.
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Blevins, Brian L.
|
Great Black-backed Gull
|
Mississippi River Lock Dam Number Sixteen
|
Below Lock + Dam #16 in Muscatine County, Muscatine, Iowa
|
Below Lock + Dam #16 on the shoreline of Muscatine, Iowa. Mississippi River plus boat harbor that is iced over where the gulls like to roost.
|
The documentation form by Brian Blevins is the only one submitted and forms the basis of this record. Other observers include Corey T. Blevins. | Elimination of similar species: Pink feet eliminates - Yellow footed Lesser Black-backed Size + Jet Black mantle eliminates - Western Slaty-Backed | The original documentation form event lasted from 08:52:00/09:02:00.
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Iowa Ornithologists' Union | MS 166
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34
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38
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Rare bird documentation form for Great Black-backed Gull at Gull Point at West Lake Okoboji, 1997
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Field notes
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Birds--Identification Ornithology Rare birds
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1997-11-08
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1997-11-09
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Rare birds documentation form
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Rare bird documentation form for a Great Black-backed Gull at Gull Point at West Lake Okoboji in Dickinson County, IA on November 8, 1997.
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Schoenewe, Lee A.
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Great Black-backed Gull
|
Gull Point
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Gull Point - West Lake Okoboji, Dickinson Co.
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Sand and rocky point on natural lake
|
The documentation form by Lee A. Schoenewe is the only one submitted and forms the basis of this record. | Elimination of similar species: Herring Gull by size and close comparison; Glaucous Gull by dark primaries and tail band | The original documentation form event lasted from 15:40:00/16:30:00.
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Iowa Ornithologists' Union | MS 166
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34
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38
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Rare bird documentation form for Great Black-backed Gull at Lock and Dam 13, 1996
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Field notes
|
Birds--Identification Ornithology Rare birds
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1996-09-29
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N/A
|
Rare birds documentation form
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Rare bird documentation form for a Great Black-backed Gull at Lock and Dam 13 in Clinton County, IA on September 29, 1996.
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Petersen, Peter C.
|
Great Black-backed Gull
|
Lock and Dam 13
|
Lock 13
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Miss. River - Circular pier.
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Mark Bollinger, Corey Blevins, and Lewis Blevins. | Elimination of similar species: Lesser Black-backed- leg color, size, darkness of back. Slaty-backed - size, darkness of back. Western- size, darkness of back. | The original documentation form event lasted from 12:00:00/12:15:00 and 14:45:00/15:05:00.
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Iowa Ornithologists' Union | MS 166
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34
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38
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Rare bird documentation form for Great Black-backed Gull at Lock and Dam 14, 1996
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Field notes
|
Birds--Identification Ornithology Rare birds
|
1996-01-02
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1996-02-26
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Rare birds documentation form
|
Rare bird documentation form for a Great Black-backed Gull at Lock and Dam 14 in Scott County, IA on January 2, 1996.
|
Dinsmore, Stephen J.
|
Great Black-backed Gull
|
Lock and Dam 14
|
below Lock and Dam 14, Davenport, Scott Co., IA
|
resting on large river
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. Other observers include Jim Dinsmore and Kelly McKay. | Elimination of similar species: The combination of large size, coal black mantle and upperwings, and massive bill eliminates all other larids. | The original documentation form event lasted from 15:50:00/16:30:00.
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Iowa Ornithologists' Union | MS 166
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34
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38
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Rare bird documentation form for Great Black-backed Gull at Lock and Dam 15, 1995
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Field notes
|
Birds--Identification Ornithology Rare birds
|
1995-02-12
|
N/A
|
Rare birds documentation form
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Rare bird documentation form for a Great Black-backed Gull at Lock and Dam 15 in Scott County, IA on February 12, 1995.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Great Black-backed Gull
|
Lock and Dam 15
|
Lock and Dam 15, Davenport, Scott Co., IA
|
Mississippi River, mostly frozen above dam.
|
The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Other observers include Tim Schantz and Jim Fuller. | Elimination of similar species: The size and pattern do not fit any other species or plumage. | The original documentation form event lasted from 11:30:00/12:10:00.
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Iowa Ornithologists' Union | MS 166
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34
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38
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Rare bird documentation form for Great Black-backed Gull at Lock and Dam 15, 1995
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Field notes
|
Birds--Identification Ornithology Rare birds
|
1995-01-02
|
1995-02-12
|
Rare birds documentation form
|
Rare bird documentation form for a Great Black-backed Gull at Lock and Dam 15 in Scott County, IA on January 2, 1995.
|
Fuller, James L
|
Great Black-backed Gull
|
Lock and Dam 15
|
Mississippi River above Lock & Dam #15 (Scott County)
|
|
The documentation form by Jim Fuller is the only one submitted and forms the basis of this record. Other observers include Jim Scheib. | Elimination of similar species: No other first-winter gull has the large size, the large all-black bill, and in particular the black and white checkered pattern of the mantle. | The original documentation form event lasted from 08:45:00/09:10:00.
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Iowa Ornithologists' Union | MS 166
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34
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38
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Rare bird documentation form for Great Black-backed Gull at Keokuk Wasterwater Plant, 1993
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1993-12-25
|
1993-12-29
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Rare birds documentation form
|
Rare bird documentation form for a Great Black-backed Gull at Keokuk Wastewater Plant in Lee County, IA on December 25, 1993.
|
Cecil, Robert I.
|
Great Black-backed Gull
|
Keokuk Wastewater Plant
|
Near Sewage treatment plant, Mississippi River, Keokuk, Lee Co. IA
|
River
|
The documentation form by Bob Cecil is the only one submitted and forms the basis of this record. Other observers include John Cecil. | Elimination of similar species: All other gulls eliminated based upon size alone. | The original documentation form event lasted from 14:00:00/14:30:00 and 16:00:00.
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Iowa Ornithologists' Union | MS 166
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34
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38
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Rare bird documentation form for Greater Black-backed Gull between Lock and Dam 15 and Lock and Dam 14, 1992
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1992-02-08
|
1992-02-15
|
Rare birds documentation form
|
Rare bird documentation form for four Greater Black-backed Gulls between Lock and Dam 15 and Lock and Dam 14 in Scott County, IA on February 8, 1992.
|
Cummins, Raymond L.
|
Great Black-backed Gull
|
Lock and Dam 14 Lock and Dam 15
|
Mississippi River between lock 15 & 14
|
I saw a total of four adult Greater Black-backed gulls between lock 15 & 14. Two were seen briefly and in rather poor light setting with Herring Gulls above lock 15. This was around 9AM and they flew off to the north. The fourth was just above the e. Moline bridge on the Iowa side at 12AM. The third was seen across the river from Campbells Island around 10AM. This bird I saw standing, spreading it's wings, and flying. It is the bird described below.
|
The documentation form by Ray Cummins is the only one submitted and forms the basis of this record. Other observers include Peter C. Petersen and Tim Schantz. | Elimination of similar species: The very large size eliminates the others possible Black-backed Gulls. | The original documentation form event lasted from 10:00:00/10:15:00.
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Iowa Ornithologists' Union | MS 166
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34
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38
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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.
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Iowa Ornithologists' Union | MS 166
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34
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38
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Rare bird documentation form for Great Black-backed Gull at the Mississippi River between Bettendorf and Moline in 1992
|
Field notes
|
Birds--Identification Ornithology Rare birds Wildlife conservation
|
1992-02-02
|
1992-03-01
|
Manuscript, graphic, and printed material
|
Rare bird documentation form for a Great Black-backed Gull at the Mississippi River between Bettendorf, IA and Moline, IL on February 2 and 3, 1992.
|
Petersen, Peter C.
|
Great Black-backed Gull
|
Bettendorf Moline
|
|
|
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Iowa Ornithologists' Union | MS 166
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34
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38
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Rare bird documentation form for Great Black-backed Gull at Mississippi River between Moline, IL and Bettendorf, IA, 1992
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1992-02-01
|
1992-02-07
|
Rare birds documentation form
|
Rare bird documentation form for a Great Black-backed Gull at Mississippi River between Moline in Rock Island County, IL and Bettendorf in Scott County, IA on February 1, 1992.
|
Fuller, James L
|
Great Black-backed Gull
|
Bettendorf Moline
|
Mississippi River between Moline, Illinois and Bettendorf, Iowa.
|
|
The documentation form by Jim Fuller is the only one submitted and forms the basis of this record. Other observers include Charles Fuller, Jane Fuller, Jim Scheib, Randy Pinkston, John Daniel, and Ann Johnson. | Elimination of similar species: Size alone should eliminate all other dark mantled gulls. In addition, all of the other adult dark grey mantled gulls have a wing tip that is black, and darker than the rest of the upperwing and back, while this bird had a uniformly black upperwing and back. | The original documentation form event lasted from 10:15:00/10:30:00.
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Iowa Ornithologists' Union | MS 166
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34
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38
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Rare bird documentation form for Great Black-backed Gull at Saylorville Reservoir, 1986
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1986-11-30
|
1986-12-01
|
Rare birds documentation form
|
Rare bird documentation form for a Great Black-backed Gull at Saylorville Reservoir in Polk County, IA on November 30, 1986 and December 1, 1986.
|
Dinsmore, Stephen J.
|
Great Black-backed Gull
|
Saylorville Lake
|
Saylorville Reservoir, Polk Co. (near visitors center)
|
large reservoir
|
The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. Other observers include Paul Martsching. | Elimination of similar species: Second winter Herring Gull eliminated by size, bill size, lack of a gray mantle, lack of streaking on the head and underparts, lack of a window on the upperwing, by the all white tail with a dark band at the tip, and by the very dark underside of the primaries. Second winter Lesser Black-backed Gull eliminated by smaller size, browner uppertail, and heavily streaked head and underparts. | The original documentation form event lasted from 16:00:00/16:15:00 on November 30, 1986 and 15:55:00/16:08:00 on December 1, 1986.
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Iowa Ornithologists' Union | MS 166
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34
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38
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Rare bird documentation form for Glaucous Gull at Lake Manawa in 1978
|
Field notes
|
Birds--Identification Ornithology Rare birds Wildlife conservation
|
1978-12-06
|
1978-12-07
|
Manuscript, graphic, and printed material
|
Rare bird documentation form for a Glaucous Gull at Lake Manawa in Pottawattamie County, IA on December 6 and 7, 1978.
|
Kovanda, James, Jr. Kovanda, Sandra
|
Glaucous Gull
|
Lake Manawa
|
|
|
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Iowa Ornithologists' Union | MS 166
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34
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38
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Rare bird documentation form for Great Black-backed Gull at Lake Manawa, 1978
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1978-12-06
|
1979-01-06
|
Rare birds documentation form
|
Rare bird documentation form for a Great Black-backed Gull at Lake Manawa in Pottawattamie County, IA on December 6, 1978.
|
Green, Ruth
|
Great Black-backed Gull
|
Lake Manawa
|
Lake Manawa, Council Bluffs, Iowa
|
Most of Lake Manawa was frozen over at this time but there were small patches of open water. The bird was standing on the ice at the edge of one of these patches.
|
The documentation form by Ruth Green is the only one submitted and forms the basis of this record. Other observers include Sandra and James Kovanda. | Elimination of similar species: There were only two gulls at this time there--this bird and the glaucous. | The original documentation form event lasted from 16:30:00/17:00:00.
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Iowa Ornithologists' Union | MS 166
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34
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38
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Rare bird documentation form for Glaucous Gull at Lake Manawa, 1978
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1978-12-06
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Glaucous Gull at Lake Manawa in Pottawattamie County, IA on December 6, 1978.
|
Bray, Tanya Kovanda, Sandra Padelford, Babs
|
Glaucous Gull
|
Lake Manawa State Park
|
Lake Manawa, Iowa
|
Large, fresh water lake - 3/4 frozen
|
The documentation form by Tanya Bray, Sandy Kovanda, and Babs Padelford is the only one submitted and forms the basis of this record. Other observers include Rushton G. Cortelyou. | Elimination of similar species: All of us are familiar with herring gulls. The large size, white plumage, and absence of black on wing tips eliminated this species. | The original documentation form event lasted from 10:30:00/11:00:00.
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Iowa Ornithologists' Union | MS 166
|
34
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37
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Rare bird documentation form for Glaucous Gull at Lock and Dam 15, 1983
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1983-01-23
|
1983-01-25
|
Rare birds documentation form
|
Rare bird documentation form for a Glaucous Gull at Lock and Dam 15 in Davenport in Scott County, IA on January 23, 1983 and January 25, 1983.
|
Petersen, Peter C.
|
Glaucous Gull
|
Lock and Dam 15
|
just above Lock 15, Davenport, Scott Co.
|
Miss. River ice
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Gerald White and Larry Linden. | Elimination of similar species: Iceland Gull - bird too large | The original documentation form event lasted from 13:05:00/13:10:00 on January 23, 1983 and 12:00:00/12:02:00 on January 25, 1983.
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Iowa Ornithologists' Union | MS 166
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34
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37
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Rare bird documentation form for Glaucous Gull at Lake Manawa, 1982
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1982-03-19
|
1982-03-20
|
Rare birds documentation form
|
Rare bird documentation form for a Glaucous Gull at Lake Manawa in Pottawattamie County, IA on March 19, 1982.
|
Myers, Robert K.
|
Glaucous Gull
|
Lake Manawa
|
Lake Manawa - Pottawattamie County
|
Lake - near Missouri Riv.
|
The documentation form by Robert K. Myers is the only one submitted and forms the basis of this record. | Elimination of similar species: Iceland Gull is possible but size (glaucous is bigger) and the complete white plumage of this glaucous eliminates the iceland. | The original documentation form event lasted from 09:30:00/09:45:00.
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Iowa Ornithologists' Union | MS 166
|
34
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37
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Rare bird documentation form for Glaucous Gull at Little Clear Lake, 1981
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1981-03-22
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Glaucous Gull at Little Clear Lake in Pocahontas County, IA on March 22, 1981.
|
Cummins, Raymond L.
|
Glaucous Gull
|
Little Clear Lake Park
|
Little Clear Lake
|
aerial
|
The documentation form by Raymond Cummins is the only one submitted and forms the basis of this record. Other observers include Wallace Jardine. | Elimination of similar species: Herring Gull + Ivory | The original documentation form event lasted from 08:30:00/08:32:00.
|
Iowa Ornithologists' Union | MS 166
|
34
|
37
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Rare bird documentation form for Glaucous Gull at Lock and Dam 14 near Davenport in 1981
|
Field notes
|
Birds--Identification Ornithology Rare birds Wildlife conservation
|
1981-01-04
|
1981-01-11
|
Manuscript, graphic, and printed material
|
Rare bird documentation form for one to two Glaucous Gulls at Lock and Dam 14 near Davenport on January 4 and one on January 11, 1981.
|
Newlon, Michael C.
|
Glaucous Gull
|
Lock and Dam 14
|
|
|
|
Iowa Ornithologists' Union | MS 166
|
34
|
37
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Rare bird documentation form for Glaucous Gull at Lock and Dam 15, 1981
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1981-01-04
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for two Glaucous Gulls at Lock and Dam 15 in Davenport in Scott County, IA on January 4, 1981.
|
Petersen, Peter C.
|
Glaucous Gull
|
Lock and Dam 15
|
Lock + Dam #15, Davenport
|
Miss. River ice, just above Govt. bridge obs. from Corps. of Engrs. obs. deck-inside bldg thru plate glass.
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Mary Lou Petersen, Alan Hahn, Tim Dwyer, Thomas H Kent, and Lewis Blevins. | Elimination of similar species: Iceland Gull - one bird too large. Both showed bill tip too distinct, head shape too flat, flight with slower wing beat & heavy bodied. | The original documentation form event lasted from 09:10:00/09:45:00.
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Iowa Ornithologists' Union | MS 166
|
34
|
37
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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
|
Rare bird documentation form for Glaucous Gull at Lock and Dam 14, 1980
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1980-12-21
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Glaucous Gull at Lock and Dam 14 in Scott County, IA on December 21, 1980.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Glaucous Gull
|
Lock and Dam 14
|
Lock + Dam 14, Scott Co, Iowa
|
Mississippi River, frozen except below dam and small area about dam
|
The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Other observers include Thomas Shire and William Kent. | Elimination of similar species: Herring gull - uniform light color Iceland gull - size, black-tipped bill | The original documentation form event lasted from around 10:00:00/10:15:00.
|
Iowa Ornithologists' Union | MS 166
|
34
|
37
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Rare bird documentation form for Glaucous Gull at Lock and Dam 14 near Davenport, 1979
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1979-12-16
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Glaucous Gull at Lock and Dam 14 near Davenport in Scott County, IA on December 16, 1979.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Glaucous Gull
|
Lock and Dam 14
|
Lock 14 N. of Davenport IA
|
Open river below dam Mississippi River
|
The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Other observers include Thomas Shires. | Elimination of similar species: Herring Gull immature - many present for comparison. All Herring Gull had variable black-gray on wings and tail Iceland Gull - large bill with pale base and size eliminate this species, also rare | The original documentation form event lasted from 09:00:00/09:05:00.
|
Iowa Ornithologists' Union | MS 166
|
34
|
37
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