|
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 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.
|
Iowa Ornithologists' Union | MS 166
|
34
|
38
|
|
Rare bird documentation form for Lesser Black-backed Gull at Mississippi River between Bettendorf, IA and Moline, IL, 1992
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1992-01-31
|
1992-02-07
|
Rare birds documentation form
|
Rare bird documentation form for a Lesser Black-backed Gull at Mississippi River between Bettendorf in Scott County, IA and Moline in Rock Island County, IL on January 31, 1992 and February 1, 1992.
|
Fuller, James L
|
Lesser 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 and Jane Fuller. | Elimination of similar species: The only other dark mantled gull with yellow legs is Yellow-footed Gull, which has never been seen outside of the extreme southwestern part of the country. Yellow-footed gull is also larger than the Herring gull, but this bird was smaller in general size. | The original documentation form event lasted from 14:35:00/14:45:00 on January 31, 1992 and 09:50:00/10:00:00 on February 1, 1992.
|
Iowa Ornithologists' Union | MS 166
|
34
|
36
|
|
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.
|
Iowa Ornithologists' Union | MS 166
|
34
|
38
|
|
Rare bird documentation form for Gyrfalcon on the Mississippi River between Davenport and Rock Island, IL, 1996
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1996-12-22
|
1997-01-03
|
Rare birds documentation form
|
Rare bird documentation form for a Gyrfalcon on the Mississippi River between Davenport in Scott County, IA and Rock Island in Rock Island County, IL on December 22, 1996.
|
Blevins, Brian L.
|
Gyrfalcon
|
Davenport Rock Island
|
Mississippi River between Davenport in Scott Co., IA and Rock Island in Rock Island County, Ill. between Big Island + Credit Island. From Ill side.
|
Directly on Mississippi River Channel with most of the river frozen over.
|
The documentation form by Brian L. Blevins is the only one submitted and forms the basis of this record. Other observers include Lewis D. Blevins and Corey T. Blevins. | Elimination of similar species: The only bird close or similar is the Peregrine. It was easily eliminated by the lack of a dark cap, shear bulk and size and the total light grayness. | The original documentation form event lasted from 10:26:00/10:29:00.
|
Iowa Ornithologists' Union | MS 166
|
33
|
33
|
|
Records Committee review for rare bird sighting of Great Black-backed Gull near Bettendorf, 1991
|
Administrative records Clippings (information artifacts) Field notes Charts (graphic documents)
|
Bird watching Ornithology Ornithology--Societies, etc
|
1991-01-14
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review for rare bird sighting of a Great Black-backed Gull near Bettendorf in Scott County, IA on January 14, 1991. Includes a record review document with votes, an article in Iowa Bird Life, appraisal and comparison of relevant bird sightings, and two documentation forms submitted to the committee.
|
Fuller, James L
|
Great Black-backed Gull
|
Bettendorf
|
Mississippi River between Bettendorf, Iowa, and Moline, Illinois. The bird was at times in both states.
|
Ice floes and open water of Mississippi River.
|
The documentation form by Jim Fuller forms the basis of this record. Another documentation form by Thomas H. Kent was submitted. Other observers include Dick Tetrault, Peter Petersen, Ann Barker, Eugene Armstrong, Eloise Armstrong, and Chuck Fuller. | Elimination of similar species: Western gull is the same size as herring gull, as is slaty backed gull and lesser black backed gull is smaller than herring. The very large legs and bill would also speak against lesser black-backed and slaty-backed. | The original documentation form event lasted from 11:05:00/11:40:00 on January 14, 1991 and 07:41:00/07:48:00 and 08:12:00/08:28:00 on January 17, 1991.
|
Iowa Ornithologists' Union | MS 166
|
11
|
8
|
|
Records Committee review for rare bird sighting of Great Black-backed Gull near Bettendorf, 1993
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1993-02-28
|
1995-07-08
|
Rare birds documentation form
|
Records Committee review for a Great Black-backed Gull near Bettendorf in Scott County, IA on February 28, 1993. Includes a record review document with votes and a documentation form submitted to the committee.
|
Fuller, James L
|
Great Black-backed Gull
|
Ben Butterworth Parkway
|
Mississippi River between Bettendorf, Iowa and Moline, Illinois (Scott Co.).
|
|
The documentation form by Jim Fuller is the only one submitted and forms the basis of this record. | Elimination of similar species: [...] In the middle of the group was a gull that was darker than any of the other birds, even the immature Herring Gulls. [...] In general size, this bird appeared almost twice the size of the Ring-billed Gulls, and considerably larger than the Herring Gulls, maybe 25%. It also had a massive bill compared to either of those species. [...] The legs were a dull gray-pink, and they were noticeably thicker than those of the Herring or Ring-billed Gulls. | The original documentation form event lasted from 11:05:00/11:35:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
8
|
|
Rare bird documentation form for White-winged Scoter at Sabula, 1998
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1998-12-26
|
1999-01-02
|
Rare birds documentation form
|
Rare bird documentation form for a White-winged Scoter at Sabula in Jackson County, IA on December 26, 1998.
|
Blevins, Brian L.
|
White-winged Scoter
|
Sabula
|
Mississippi River at Sabula, Iowa. Jackson County
|
small open section of water with ice surrounding
|
The documentation form by Brian Blevins is the only one submitted and forms the basis of this record. Other observers include Corey Blevins. | Elimination of similar species: white cheek patch and white secondaries eliminate other scoters. | The original documentation form event lasted from 14:48:00/15:20:00.
|
Iowa Ornithologists' Union | MS 166
|
33
|
12
|
|
Records Committee review for rare bird sighting of Roseate Tern at Lock and Dam 16 at Muscatine, 1980
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1980-05-03
|
1993-08-16
|
Rare birds documentation form
|
Records Committee review for a Roseate Tern at Lock and Dam 16 at Muscatine in Muscatine County, IA on May 3, 1980. Includes a record review document with votes and a documentation form submitted to the committee.
|
Shires, Thomas K.
|
Roseate Tern
|
Lock and Dam 16
|
Mississippi River at Muscatine Iowa
|
General: Mississippi River Specific: Waters below Lock and Dam at Muscatine
|
The documentation form by T.K. Shires is the only one submitted and forms the basis of this record. Other observers include Carl Bendorf, Tom Kent, and Tom Staudt. | Elimination of similar species: [...] 2. Features most apparent in comparison with nearby Common and Forster's terns: Much longer tail, lighter overall mantle, more or less uniform light gray over back and superior wing surfaces. | The original documentation form event lasted from approximately 10:00:00/10:15:00.
|
Iowa Ornithologists' Union | MS 166
|
12
|
1
|
|
Rare bird documentation form for Great Black-backed Gull at Lock and Dam 15, 1995
|
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.
|
Iowa Ornithologists' Union | MS 166
|
34
|
38
|
|
Rare bird documentation form for Lesser Black-backed Gull at Lock and Dam 15, 1995
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1995-02-05
|
1995-02-21
|
Rare birds documentation form
|
Rare bird documentation form for a Lesser Black-backed Gull at Lock and Dam 15 in Scott County, IA on February 5, 1995 and February 12, 1995.
|
Fuller, James L
|
Lesser Black-backed Gull
|
Lock and Dam 15
|
Mississippi River above Lock & Dam #15 (Scott County)
|
|
The documentation form by James Fuller is the only one submitted and forms the basis of this record. Other observers include Jim Scheib, Thomas Kent, Dan Dorrance, Barker, Peter C. Petersen, Eloise Armstrong, and Eugene Armstrong. | Elimination of similar species: The only other dark mantled gull with yellow legs is the Yellow-footed Gull. That bird has never been seen away from the extreme southwest portion of the country, and it should be much larger. | The original documentation form event lasted from 08:30:00/09:00:00 on February 5, 1995 and 11:40:00/11:55:00 on February 12, 1995.
|
Iowa Ornithologists' Union | MS 166
|
34
|
36
|
|
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 Osprey at Montrose, 1992
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1992-12-27
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Osprey at Montrose in Lee County, IA on December 27, 1992.
|
Roberts, Barb
|
Osprey
|
Montrose
|
Mississippi River - near Montrose, IA (south of Montrose)
|
near patch of open water - on ice near water
|
The documentation form by Barb Roberts is the only one submitted and forms the basis of this record. Other observers include Zelma Williams, Kathy Dehn, and Ruth Iutzi. | Elimination of similar species: Im. bald eagles were in area, not adjacent. This bird's head marking were very distinctive. | The original documentation form event lasted from 14:00:00/14:15:00.
|
Iowa Ornithologists' Union | MS 166
|
33
|
19
|
|
Records Committee review for rare bird sighting for Great Black-backed Gull east of Lock and Dam 15 in Davenport, 1988
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1988-12-18
|
1993-08-04
|
Rare birds documentation form
|
Records Committee review for a Great Black-backed Gull at Lock and Dam 15 in Davenport in Scott County, IA on December 18, 1988. Includes a record review document with votes and two documentation forms submitted to the committee.
|
Petersen, Peter C.
|
Great Black-backed Gull
|
Lock and Dam 15
|
Missisippi River just E (upstream) of Lock 15 in Davenport
|
river ice
|
The documentation form by Peter C. Petersen 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 Mary Lou Petersen, Walter Zuurdeeg, Ann Barker, and Don Moeller. | Elimination of similar species: Lesser Black-backed Gull - this bird too large, mantle color too dark, legs color was pink, not yellow. | The original documentation form event lasted from 11:40:00/11:50:00 and 13:00:00/13:05:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
8
|
|
Rare bird documentation form for Surf Scoter at Lock and Dam 18, 1987
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1987-10-21
|
1987-11-21
|
Rare birds documentation form
|
Rare bird documentation for four Surf Scoters at Lock and Dam 18 north of Burlington in Des Moines County, IA on October 21, 1987.
|
Cecil, Robert I.
|
Surf Scoter
|
Lock and Dam Number 18
|
Miss. River Lock and Dam 18 North of Burlington, Des Moines Co., Iowa
|
River
|
The documentation form by Bob Cecil is the only one submitted and forms the basis of this record. Other observers include Charles Fuller and Elizabeth Christiansen. | Elimination of similar species: Head pattern unlike Black Scoter. Similar to White-winged, but white in wing never noted. We viewed birds at rest for sometime, and saw them rear up once or twice, so should have seen white if present. Similar to female scaup but for bill shape in relation to head.
|
Iowa Ornithologists' Union | MS 166
|
33
|
11
|
|
Rare bird documentation form for Mute Swan at the Mississippi River near Le Claire, 1982
|
Field notes Forms (documents)
|
Birds--Identification Ornithology Rare birds
|
1982-02-21
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Mute Swan at the Mississippi River near Le Claire in Scott County, IA on February 21, 1982.
|
Hollis, Richard Jule
|
Mute Swan
|
Le Claire
|
Miss. River between I80 & Le Clair [sic]
|
|
The documentation form by Rick Hollis is the only one submitted and forms the basis of this record. Other observers include Tom Kent and Carl Bendorf. | Elimination of similar species: The points about (#2-4) eliminate both the Whistling & Trumpeter Swans. | The original documentation form event lasted from 08:20:00/08:30:00.
|
Iowa Ornithologists' Union | MS 166
|
32
|
29
|
|
Rare bird documentation form for Lesser Black-backed Gull on the Mississippi River between Bettendorf, IA and Moline, IL, 1992
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1992-02-02
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Lesser Black-backed Gull on the Mississippi River between Bettendorf in Scott County, IA and Moline in Rock Island County, IL on February 2, 1992.
|
Petersen, Peter C.
|
Lesser Black-backed Gull
|
Bettendorf Moline
|
Miss. River between Bettendorf, Scott Co., IA + Moline, R.I. Co., IL.
|
Main channel of Miss. River
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Ann Johnson and Gerald White. | Elimination of similar species: Great-Black-backed- seen with one, much smaller, mantle not black. Slaty-backed. This bird smaller than Herrings, legs were yellow. | The original documentation form event lasted from 13:30:00/13:35:00.
|
Iowa Ornithologists' Union | MS 166
|
34
|
36
|
|
Rare bird documentation form for Bonaparte's Gull at the Mississippi River at Keokuk, 1987
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1987-12-31
|
1988-01-14
|
Rare birds documentation form
|
Rare bird documentation form for a Bonaparte's Gull at the Mississippi River at Keokuk in Lee County, IA on December 31, 1987.
|
Cecil, Robert I.
|
Bonaparte's Gull
|
Keokuk
|
Miss. River at Keokuk, Lee County, Iowa
|
Lock and Dam 19 Tailwaters
|
The documentation form by Robert Cecil is the only one submitted and forms the basis of this record. | Elimination of similar species: Common Black-headed has dark underwings. I would have noticed this. | The original documentation form event lasted from 14:05:00/14:10:00.
|
Iowa Ornithologists' Union | MS 166
|
34
|
33
|
|
Rare bird documentation form for Trumpeter Swan at Mississippi River in Davenport, 1991
|
Field notes Forms (documents)
|
Birds--Identification Ornithology Rare birds
|
1991-12-06
|
1991-12-29
|
Rare birds documentation form
|
Rare bird documentation form for three Trumpeter Swans at Mississippi River near Enchanted Island in Davenport in Scott County, IA on December 6, 1991.
|
Petersen, Peter C.
|
Trumpeter Swan
|
Horse Island
|
Miss. River along S. Concord St. near Enchanted Island on Davenport, IA
|
Miss River + adjacent shore
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Kelly McKay, Weir Nelson, Jim Durbin, Joyce Durbin, and Dawn Fisher. | Elimination of similar species: Tundra Swan - would have yellow area between eye & bill. In addition these birds were marked & from a known Trumpeter population. | The original documentation form event occurred in various times.
|
Iowa Ornithologists' Union | MS 166
|
32
|
30
|
|
Rare bird documentation form for Black Scoter at Davenport, 1992
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1992-12-20
|
1992-12-23
|
Rare birds documentation form
|
Rare bird documentation form for a Black Scoter at Davenport in Scott County, IA on December 20, 1992.
|
Bryant, Robert R.
|
Black Scoter
|
Davenport
|
Miss. River along S. Concord at corner Wapello Ave. Davenport, Scott Co.
|
Miss. River near outlet of sewage treatment plant.
|
The documentation form by Bob Bryant is the only one submitted and forms the basis of this record. Other observers include Dan Dorrance and Leroy Sowl. | Elimination of similar species: Ruddy Duck - smaller, wide bill, one was nearby for a while for comparison. | The original documentation form event lasted from 12:00:00/12:30:00.
|
Iowa Ornithologists' Union | MS 166
|
33
|
13
|
|
Rare bird documentation form for Lesser Black-backed Gull at Mississippi River between Bettendorf, IA and Moline, IL, 1992
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1992-01-11
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Lesser Black-backed Gull at Mississippi River between Bettendorf in Scott County, IA and Moline in Rock Island County, IL on January 11, 1992.
|
Petersen, Peter C.
|
Lesser Black-backed Gull
|
Bettendorf Moline
|
Miss. R. between Bettendorf + Moline, Scott + R.I. Cos.
|
river channel
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. | Elimination of similar species: Great Black-backed - back not black, too small. Slaty-backed - a bit small, trailing edge of wing with narrow, not wide, white edge. Western - a bit small bill not larger + heavier than the several nearby Herrings. | The original documentation form event lasted from 08:50:00/09:00:00.
|
Iowa Ornithologists' Union | MS 166
|
34
|
36
|
|
Rare bird documentation form for Golden Eagle at Willow Slough, 1984
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1984-11-23
|
1984-11-28
|
Rare birds documentation form
|
Rare bird documentation form for a Golden Eagle at Willow Slough in Mills County, IA on November 23, 1984.
|
Wilson, Barbara L.
|
Golden Eagle
|
Willow Slough State Game Management Area
|
Mills County, Iowa, near Willow Slough
|
|
The documentation form by Barb Wilson is the only one submitted and forms the basis of this record. | Elimination of similar species: Young Bald Eagles are similar but usually mottled with light feathers. They have white on the under wing coverts, not the bases of the flight feathers, & they do not have the neat tail pattern. | The original documentation form event lasted from 15:30:00/15:40:00.
|
Iowa Ornithologists' Union | MS 166
|
33
|
31
|
|
Rare bird documentation form for Prairie Falcon near the Bellevue Bridge, 1981
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1981-10-20
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Prairie Falcon near Bellevue Bridge in Mills County, IA on October 20, 1981.
|
Bray, Tanya Kovanda, Sandra Padelford, Babs
|
Prairie Falcon
|
Bellevue Bridge
|
Mills County, Highway 370, approx 1 1/2 miles east of the Bellevue Bridge
|
Missouri River bottomland; cornfields
|
The documentation form by Babs Padelford, Sandy Kovanda, and Tanya Bray is the only one submitted and forms the basis of this record. | Elimination of similar species: The pale brown upperparts and black axillars elimate [sic] Peregrine Falcon. Size and black axillars eliminate Merlin. | The original documentation form event lasted from 11:30:00/11:35:00.
|
Iowa Ornithologists' Union | MS 166
|
33
|
35
|
|
Rare bird documentation form for Cooper's Hawk at Mill Creek State Park, 1985
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1985-09-19
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Cooper's Hawk at Mill Creek State Park in O'Brien County, IA on September 19, 1985.
|
Harr, Douglas C.
|
Cooper's Hawk
|
Mill Creek State Park
|
Mill Creek State Park, 1 mi. w. of Paullina, O'Brien Co., IA
|
along edge of park woods & cornfield
|
The documentation form by Douglas C. Harr is the only one submitted and forms the basis of this record. | Elimination of similar species: Sharp-shinned Hawk - smaller, slimmer, squared tail. | The original documentation form event lasted from 11:14:00/11:16:00.
|
Iowa Ornithologists' Union | MS 166
|
33
|
24
|
|
Records Committee review for rare bird sighting of Laughing Gull at Midwest Power Pond, 1994
|
Administrative records Correspondence Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1994-10-19
|
1996-04-25
|
Rare birds documentation form
|
Records Committee review for a Laughing Gull at Midwest Power (South) Pond in Pottawattamie County, IA on October 19, 1994. Includes a record review document with votes, a documentation letter from Paul Lehman to Ross Silcock, and two documentation forms submitted to the committee.
|
Silcock, W. Ross
|
Laughing Gull
|
MidAmerican Energy Ponds
|
Midwest Power (South) Pond, Pottawattamie Co., IA
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The documentation form by Ross Silcock is the earliest and the one that forms the basis of this record. Other documentations by Babs and Loren Padelford as well as Paul Lehman were submitted later. | Elimination of similar species: [...] Later it was seen at rest with Ring-billed and Franklin's Gulls, the latter group including a few individuals of the same age as the Laughing Gull, allowing careful comparison. [...] The wings were long and pointed, the overall jizz of the bird more attenuated than a Franklin's. [...] There was a grayish-black wash over the crown and nape, slightly intensified in the upper nuchal area, and a paler grayish wash on the flanks in the area below the bend of the wing, imparting a "dirtier" look to the underparts than on same-age Franklin's Gulls (seen when at rest). At rest, the black primaries extended well past the tail, a feature compared easily with nearby Franklin's, and there were no small white crescents in the primaries of the Laughing Gull, a feature easily seen in same-age Franklin's nearby. The Laughing Gull was almost as big as the Ringbills near it, while it appeared significantly larger than the adjacent Franklin's. | The original documentation form event lasted from 11:30:00/11:40:00.
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Iowa Ornithologists' Union | MS 166
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18
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