Records Committee review for rare bird sighting of Thayer's Gull at Lock and Dam 19, 1986
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1986-12-21
|
1993-09-07
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at Lock and Dam 19 in Keokuk in Lee County, IA on December 21, 1986. Includes a record review document with votes, a summary of the review, and a documentation form submitted to the committee.
|
Cecil, Robert I.
|
Thayer's Gull
|
Lock Number 19
|
Lock and Dam 19, Miss. River, Keokuk, Lee Co, Iowa
|
River rapids.
|
The documentation form by Robert Cecil is the only one submitted and forms the basis of this record. Another observer includes Doug Reeves. | Elimination of similar species: First year Herring much more "contrasty"--see above. Kumlien's Iceland Gull...According to Seabirds (Harrison), 1st year Iceland is more pale, tail uniform gray. Overall body coloration is more like 1st year Glaucous--bird I saw was darker than 1st year Glaucous. [...] The important thing about this uniformity that the accompanying first year Herring Gulls had much contrast, showing whitish head, darker wingtips, dark at the tip of the underwings (sometimes), and most obviously, much darker secondaries, creating a dark trailing edge to the wings. Their general color was a darker chocolatey brown. [...] BILL: Pinkish--noticably [sic] smaller that [sic] Herrings. This is pretty subjective, but at about 2/3 of the way across the river at the dam (maybe one third mile) the bill on a Herring can be easily seen through my scope. [...] A very indistinct darkening (wing, upper surface) of the first two or three primaries. The mark had to be looked for to be seen--on the Herring it was much more evident. [...] At some times, the bird showed secondaries that were slightly darker than the rest of the wing. Slightly should be emphasized--at no time was it even close to the darkness of the secondaries of the first year Herring. [...] There was a very slight and indistinct darkening to the first two or three primaries, but this had to be looked for carefully. I have also seen a number of 1st year Herring Gulls that fit this description, but all have a distinct window at base of primaries. | The original documentation form event occurred at various times during the date range of sightings on the documentation form.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
Records Committee review for rare bird sighting of Mew Gull at Lock and Dam 19 at Keokuk, 1998
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1998-12-21
|
2000-11-24
|
Rare birds documentation form
|
Records Committee review for a Mew Gull at Lock and Dam 19 at Keokuk in Lee County, IA on December 21, 1998. Includes a record review document with votes and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Mew Gull
|
Lock Number 19
|
Lock and Dam 19, Keokuk, Lee County, Iowa
|
feeding below dam of a large river
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. Other observers were Aaron Brees and many unidentified other observers. | Elimination of similar species: The combination of a smaller bill, more extensive dark brown color on the underparts, darker gray mantle, and solidly dark rectrices eliminated the similar Ring-billed Gull. | The original documentation form event lasted from 12:25:00/13:00:00.
|
Iowa Ornithologists' Union | MS 166
|
10
|
23
|
Records Committee review for rare bird sighting of Thayer's Gull at Lock and Dam 19, 1986
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1986-12-17
|
1994-11-04
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at Lock and Dam 19 in Keokuk in Lee County, IA on December 17, 1986. Includes a record review document with votes, summary of review, and a documentation form submitted to the committee.
|
Cecil, Robert I.
|
Thayer's Gull
|
Lock Number 19
|
Lock and Dam 19, Keokuk, Lee Co., Iowa
|
River Rapids
|
The documentation form by Robert Cecil is the only one submitted and forms the basis of this record. Another observer includes Francis L. Moore. | Elimination of similar species: Herring Gull:Bill size, pattern of wingtips on upper and under surface of wings. Ringbill: size. Kumlien's Iceland: black rather than gray in wintip [sic] (Tom Kent, personal communication). Adult Glaucous has no black in wingtips. | The original documentation form event occurred at various times on the various dates listed on the documentation form.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
Records Committee review for rare bird sighting of Black-legged Kittiwake in Lock and Dam 19 in Keokuk, 1995
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1995-12-18
|
2000-11-20
|
Rare birds documentation form
|
Records Committee review of a Black-legged Kittiwake in Lock and Dam 19 in Keokuk in Lee County, IA on December 18, 1995. Includes a record review document with votes and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Black-legged Kittiwake
|
Lock Number 19
|
Lock and Dam 19, Keokuk, Lee Co.
|
below large dam on river
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: The combination of size, bill color, and wing and tail patterns is diagnostic of a first-basic Black-legged Kittiwake. | The original documentation form event lasted from 07:50:00/08:45:00 and 16:10:00/16:30:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
10
|
Rare bird documentation form for Great Black-backed Gull at Lock and Dam 15, 1995
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1995-02-12
|
N/A
|
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 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.
|
Iowa Ornithologists' Union | MS 166
|
34
|
38
|
Rare bird documentation form for Thayer's Gull at Lock and Dam 15 in Davenport, 1992
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1992-01-17
|
1992-01-19
|
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.
|
Cecil, Robert I.
|
Thayer's Gull
|
Lock and Dam 15
|
Lock and Dam 15, Davenport, Iowa. Rusty Pelican Restaurant
|
River
|
The documentation form by Bob Cecil is the only one submitted and forms the basis of this record. | Elimination of similar species: See above discussion. [...] The wingtip pattern is what caught my attention. There was much less darkening to the outer primaries than on accompanying gulls. [...] When viewed fro [sic] underneath, the wingtips of the subject bird were white to the tips, with the exception of very narrow black tips at the tips of the primaries. This was very different from the adult Herring/Ring-bills which had substantial black towards the end of the underwings. | The original documentation form event lasted from 10:30:00/10:45:00.
|
Iowa Ornithologists' Union | MS 166
|
34
|
35
|
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 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 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 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 Brown Pelican at Lock and Dam 18, 1996
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-11-04
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Brown Pelican at Lock and Dam #18 in Des Moines County on November 4, 1996. Includes a record review document with votes, an article in Iowa Bird Life, an article in an Illinois bird magazine, and a documentation form submitted to the committee.
|
Fuller, James L
|
Brown Pelican
|
Lock and Dam Number 18
|
Lock and Dam #18 Mississippi River (Des Moines County)
|
|
The documentation form by Jim Fuller is the only one submitted and forms the basis of this record. Other observers include Jim Scheib, John Rutenbeck, Myrna Deaton, Bernie Knight, Cal Knight, and Chuck Fuller. | Elimination of similar species: The White Pelican is white with yellow-orange or orange bill. | The original documentation form event lasted from 06:42:00/07:05:00.
|
Iowa Ornithologists' Union | MS 166
|
7
|
11
|
Records Committee review for rare bird sighting of Great Black-backed Gull at Lock 19 in Keokuk, 1991
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1991-02-07
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review for a Great Black-backed Gull at Lock 19 in Keokuk in Lee County, IA on February 7, 1991. Includes a record review document with votes, an article in Iowa Bird Life, comparison of different gull sightings, and two documentation forms submitted to the committee.
|
Dinsmore, Stephen J.
|
Great Black-backed Gull
|
Lock Number 19
|
Lock 19, Keokuk, Lee Co.
|
|
The documentation form by Steve Dinsmore forms the basis of this record. Another documentation form by Ann Johnson was submitted. Another observer was Beth Brown. | Elimination of similar species: The black mantle really eliminates most other gulls. Western Gull, a remote possibility, is smaller and has a slightly paler mantle. | The original documentation form event lasted from 13:10:00/15:40:00 on February 7, 1991 and 13:32:00/14:20:00 on February 8, 1991.
|
Iowa Ornithologists' Union | MS 166
|
11
|
8
|
Rare bird documentation form for Caspian Tern at Lock 16, 1999
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1999-06-30
|
1999-07-13
|
Rare birds documentation form
|
Rare bird documentation form for a Caspian Tern at Lock 16 in Rock Island County, IL on June 30, 1999.
|
White, Gerald
|
Caspian Tern
|
Lock and Dam 16
|
Lock 16 on Mississippi River
|
River
|
The documentation form by Gerald White is the only one submitted and forms the basis of this record. | Elimination of similar species: Was not a Gull because of the feeding pattern, the bird was diving in the water. Forsters Tern is smaller and has smaller bill. Royal Tern has smaller bill and tail has deeper notch. | The original documentation form event lasted from 18:00:00/18:02:00 minimum.
|
Iowa Ornithologists' Union | MS 166
|
34
|
41
|
Records Committee review for rare bird sighting of Thayer's Gull at Lock 15 in Davenport, 1986
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1986-12-24
|
1993-09-07
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at Lock 15 in Davenport in Scott County, IA on December 24, 1986. Includes a record review document with votes and a documentation form submitted to the committee.
|
Petersen, Peter C.
|
Thayer's Gull
|
Lock and Dam 15
|
Lock 15, Davenport
|
General: Mississippi River Specific: just below roller dam
|
The documentation form by Peter C Petersen is the only one submitted and forms the basis of this record. Other observers include Tim Dwyer and Jerry White. | Elimination of similar species: Herring Gull - wing tips not black on this bird, + its eye was dark. Iceland (Humelius) - wing tips not as pale grey, legs not pale pink. | The original documentation form event lasted from 10:10:00/10:15:00 on December 24, 1986 and 14:40:00/14:42:00 on December 25, 1986.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
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 Turkey Vulture at Lock 15, 1992
|
Field notes Forms (documents)
|
Birds--Identification Ornithology Rare birds
|
1992-12-20
|
1992-12-23
|
Rare birds documentation form
|
Rare bird documentation form for a Turkey Vulture at Lock 15 near Rock Island, IL on December 20, 1992.
|
McIlwuain, Bob
|
Turkey Vulture
|
Lock and Dam 15
|
Lock 15 - Rock Island, IL (island, not city)
|
wooded island along Mississippi
|
The documentation form by Bob McIlwuain is the only one submitted and forms the basis of this record. Other observers include two out of town birders, Brian Blevins, Lewis Blevins, and Corey Blevins. | Elimination of similar species: Black Vulture-head not pink. | The original documentation form event lasted from 14:15:00/14:25:00.
|
Iowa Ornithologists' Union | MS 166
|
32
|
26
|
Records Committee review for rare bird sighting for Iceland Gull at Lock and Dam 15 near Davenport, 1990
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1990-03-09
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review for an Iceland Gull at Lock and Dam 15 near Davenport in Scott County, IA on March 9, 1990. Includes a record review document with votes and a documentation form submitted to the committee.
|
Petersen, Peter C.
|
Iceland Gull
|
Lock and Dam 15
|
Lock 15 - just upstream - R.I. Co. Il. + Scott Co. IA.
|
Ice cake floating on Miss. R. - along shore just upstream from lock - urban area around River.
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. | Elimination of similar species: Glaucous Gull - bird was too small, bill entirely black. Thayer's Gull - uniform color on entire wing. | The original documentation form event lasted from 11:00:00/11:10:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
Rare bird documentation form for Greater Scaup at Lock 14, 1981
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1981-01-02
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for Greater Scaup at Lock 14 in Scott County, IA on January 2, 1981.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Greater Scaup
|
Lock and Dam 14
|
Lock 14 Scott Co. IA
|
River below dam, Mississippi River at Lock 14, Iowa Side
|
The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Other observers include Bill Kent. | Elimination of similar species: Lesser Scaup. | The original documentation form event lasted from 11:00:00/11:05:00 approx.
|
Iowa Ornithologists' Union | MS 166
|
33
|
10
|
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
|
Records Committee review for rare bird sighting of Sabine's Gull at Lock 13, 1995
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1995-10-22
|
2000-11-20
|
Rare birds documentation form
|
Records Committee review for a Sabine's Gull at Lock 13 in Clinton County, IA on October 22, 1995. Includes a record review document with votes, an article in Iowa Bird Life, and a documentation field report submitted to the committee.
|
Petersen, Peter C.
|
Sabine's Gull
|
Lock and Dam 13
|
Lock 13 flying over channel near barges
|
|
The documentation field report by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Mary Lou Petersen and Dennis Carter. | Elimination of similar species: [...] much smaller than Ringbills. | The original documentation form event lasted from 10:00:00/10:03:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
9
|
Records Committee review for rare bird sighting of Lesser Black-backed Full at Lock 13, 1995
|
Administrative records Correspondence Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1995-10-22
|
2000-11-20
|
Rare birds documentation form
|
Records Committee review for a Lesser Black-backed Gull at Lock 13 in Clinton County, IA on October 22, 1995. Includes a record review document with votes and a documentation letter with field notes submitted to the committee.
|
Petersen, Peter C.
|
Lesser Black-backed Gull
|
Lock and Dam 13
|
Lock 13
|
|
The documentation letter and field notes by Peter C. Petersen forms the basis of this record. Other observers include Dan Dorrance, Kelly McKay, Mary Lou Petersen, and Dennis Carter. | The original documentation form event lasted from approximately 10:00:00/10:15:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
5
|
Rare bird documentation form for Great Black-backed Gull at Lock and Dam 13, 1996
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1996-09-29
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Great Black-backed Gull at Lock and Dam 13 in Clinton County, IA on September 29, 1996.
|
Petersen, Peter C.
|
Great Black-backed Gull
|
Lock and Dam 13
|
Lock 13
|
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.
|
Iowa Ornithologists' Union | MS 166
|
34
|
38
|
Rare bird documentation form for Thayer's Gull at Lock and Dam 15, 1995
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1995-12-17
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Thayer's Gull at Lock and Dam 15 in Scott County, IA on December 17, 1995.
|
Petersen, Peter C.
|
Thayer's Gull
|
Lock and Dam 15
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Lock + Dam 15, seen from Iowa walking near Il. Shore mostly
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Open river
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The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Walter Zuurdeeg, Mary Lou Petersen, and Kelly McKay. | Elimination of similar species: Herring Gull - heavier bill, very dark primary tips, no windows, tail darker with uneven white edge, secondaries dark from above, underwing much darker. Iceland Gull would show much lighter plumage overall, especially tail + primary tips. | The original documentation form event lasted from 12:05:00/12:10:00.
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Iowa Ornithologists' Union | MS 166
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34
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35
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Records Committee review for rare bird sighting of Thayer's Gull at Lock and Dam 15 near Davenport, 1991
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Administrative records Field notes
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Bird watching Ornithology Ornithology--Societies, etc
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1991-12-31
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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 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.
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Kent, Thomas H. (Thomas Hugh), 1934-
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Thayer's Gull
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Lock and Dam 15
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Lock + Dam 15, Davenport, Scott Co., IA
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Mississippi River
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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.
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Iowa Ornithologists' Union | MS 166
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11
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3
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