|
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 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 Iceland Gull at Saylorville Reservoir, 1992
|
Administrative records Clippings (information artifacts) Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1992-02-29
|
1994-10-18
|
Rare birds documentation form
|
Records Committee review for an Iceland Gull at Saylorville Reservoir in Polk County, IA on February 29, 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
|
Saylorville Lake
|
Saylorville Reservoir, Polk Co., IA
|
Near boat marina on shore and swimming with Ring-billed Gulls at wide part of reservoir.
|
The documentation form by Thomas H. Kent forms the basis of this record. Another documentation form by Bob Cecil was submitted. Other observers include John Cecil, Bob Myers, and Maridel Jackson. | Elimination of similar species: The small size, small head and bill, and all dark bill exclude Glaucous Gull. The lack of any dark in the wing or tail exclude Thayer's Gull. | The original documentation form event lasted from approximately 12:30:00/13:00:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
|
Records Committee review for rare bird sighting of Iceland Gull at Lake Rathbun Dam, 1993
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1993-01-02
|
1995-07-08
|
Rare birds documentation form
|
Records Committee review for an Iceland Gull at Lake Rathbun Dam in Appanoose County, IA on January 2, 1993. Includes a record review document with votes and a documentation form submitted to the committee.
|
Cummins, Raymond L.
|
Iceland Gull
|
Rathbun Dam
|
Lake Rathbun Dam Appanoose Co.
|
The Iceland Gull was sighted on the ice above the dam feeding on a dead Canada goose. It was very protective of the food source chasing Crows away.
|
The documentation form by Ray Cummins is the only one submitted and forms the basis of this record. Other observers include Mary Montgomery and Dot Cornett. | Elimination of similar species: Thayer's Gull was eliminated because there was no dark in the primaries, no dark secondary band, and bill was not all dark. A first-winter Glaucous would have the coloration but there is no way this gulls bill or body size was big enough tobe [sic] a Gloucous [sic] Gull. | The original documentation form event lasted from 09:45:00/10:30:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
|
Records Committee review for rare bird sighting of Iceland Gull near Hancher Auditorium in Iowa City, 1993
|
Administrative records Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1993-01-16
|
1995-07-08
|
Rare birds documentation form
|
Records Committee review for an Iceland Gull near Hancher Auditorium in Iowa City in Johnson County, IA on January 16, 1993. Includes a record review document with votes, a photograph, and three documentation forms submitted to the committee.
|
Fuller, James L
|
Iceland Gull
|
Hancher Auditorium
|
Iowa River near Hancher Auditorium, Iowa City (Johnson County).
|
|
The documentation form by Jim Fuller forms the basis of this record. Other documentation forms by Randall Pinkston and Thomas H. Kent were submitted. Other observers include Carl Bendorf, Jane Fuller, and many unidentified other observers. | Elimination of similar species: First year Thayer's Gull is overall darker, with darker primaries and a well defined dark tail band. Glaucous Gull is larger, and the first year bird has a two-toned bill. | The original documentation form event lasted from 09:35:00/09:45:00 and 12:25:00/12:30:00 on January 16, 1993 and 11:45:00/11:50:00 on January 19, 1993.
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
|
Records Committee review for rare bird sighting of Iceland Gull at Lock and Dam 14, 1993
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1993-01-31
|
1995-07-08
|
Rare birds documentation form
|
Records Committee review for an Iceland Gull at Lock and Dam 14 in Scott County, IA on January 31, 1993. Includes a record review document with votes and a documentation form submitted to the committee.
|
Fuller, James L
|
Iceland Gull
|
Lock and Dam 14
|
Lock & Dam #14, Mississippi River, Scott County.
|
|
The documentation form by Jim Fuller is the only one submitted and forms the basis of this record. | Elimination of similar species: [...] It was smaller than any of the Herring Gulls, almost totally off white (grayish-brown flecking), dark bill, gray-pink legs. | The original documentation form event lasted from 09:55:00/10:35:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
|
Records Committee review for rare bird sighting of Iceland Gull at Lock and Dam 14, 1993
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1993-01-31
|
1995-07-08
|
Rare birds documentation form
|
Records Committee review for an Iceland Gull at Lock and Dam 14 in Scott County, IA on January 31, 1993. Includes a record review document with votes and a documentation form submitted to the committee.
|
Fuller, James L
|
Iceland Gull
|
Lock and Dam 14
|
Lock & Dam #14, Mississippi River, Scott County.
|
|
The documentation form by Jim Fuller is the only one submitted and forms the basis of this record. | Elimination of similar species: Adult Kumlien's Gull is larger than Ring-billed, and smaller than Herring Gull, both of which have black areas at the end of both upper and underwing. | The original documentation form event lasted from 09:55:00/10:35:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
|
Records Committee review for rare bird sighting of Iceland Gull at Centennial Bridge at Davenport, 1993
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1993-02-07
|
1995-07-08
|
Rare birds documentation form
|
Records Committee review for an Iceland Gull at Centennial Bridge at Davenport in Scott County, IA on February 7, 1993. Includes a record review document with votes and a documentation form submitted to the committee.
|
Fuller, James L
|
Iceland Gull
|
Centennial Bridge
|
Below Centennial Bridge, Mississippi River, Scott County.
|
|
The documentation form by Jim Fuller is the only one submitted and forms the basis of this record. Another observer includes Jim Scheib. | Elimination of similar species: This bird was much too small for a Glaucous Gull, and the generally whiter cast and two-toned bill would suggest a second-winter, compared to first-winter Iceland. | The original documentation form event lasted from 14:55:00/15:00:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
|
Records Committee review for rare bird sighting of Iceland Gull at Credit Island, 1993
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1993-02-14
|
1995-07-08
|
Rare birds documentation form
|
Records Committee review for an Iceland Gull at Credit Island in Scott County, IA on February 14, 1993. Includes a record review document with votes and a documentation form submitted to the committee.
|
Johnson, Ann
|
Iceland Gull
|
Credit Island
|
Credit Island, Davenport, Scott County, IA
|
Frozen lagoon with small amount of open water
|
The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: Although the duskiness on the face had somewhat of a "hooded" effect, any of the hooded gulls could be eliminated by the bill structure. The pale primaries eliminated all but the white-winged gulls - Glaucous, Iceland, and possibly Thayer's. Glaucous can be eliminated by size and bill color. Thayer's was eliminated because of: 1) overall gray-white appearance; 2) the lack of any secondary bar; and 3) the checkered tertials. Problems with the record are the duskiness on the face and the narrow dark edging to the outer primaries from below. These two characteristics may well indicate an Iceland/Thayer's intergrade. | The original documentation form event lasted from 13:15:00/13:40:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
|
Records Committee review for rare bird sighting of Iceland Gull at Lake MacBride, 1993
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1993-04-16
|
1995-07-08
|
Rare birds documentation form
|
Records Committee review of an Iceland Gull at Lake MacBride in Johnson County, IA on April 16, 1993. Includes a record review document with votes and a documentation form submitted to the committee.
|
Fuller, James L
|
Iceland Gull
|
Lake MacBride
|
Short rock jetty from south shore of south arm of Lake MacBride (Johnson County).
|
|
The documentation form by Jim Fuller is the only one submitted and forms the basis of this record. | Elimination of similar species: First year Thayer's Gull is generally darker, with noticably [sic] darker tail and primaries. First year Glaucous Gull is larger with a two-toned bill. | The original documentation form event lasted from 16:39:00/16:42:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
|
Records Committee review for rare bird sighting of Iceland Gull at lake near Des Moines River, 1993
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1993-04-17
|
1995-07-08
|
Rare birds documentation form
|
Records Committee review for an Iceland Gull at lake near Des Moines River in unknown county, IA on April 17, 1993. Includes a record review document with votes and a documentation form submitted to the committee.
|
Sinclair, Jim
|
Iceland Gull
|
Des Moines River
|
small lake adjacent to D.M. River
|
|
The documentation form by Jim Sinclair is the only one submitted and forms the basis of this record. | Elimination of similar species: Appeared much paler than second year Herring Gull. | The original documentation form event lasted from 11:45:00/11:50:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
|
Records Committee review for rare bird sighting of Iceland Gull at Saylorville Reservoir Dam, 1995
|
Administrative records Clippings (information artifacts) Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1995-11-17
|
2000-11-20
|
Rare birds documentation form
|
Records Committee review for an Iceland Gull at Saylorville Reservoir Dam in Polk County, IA on November 17, 1995. Includes a record review document with votes, two photographs, an article in Iowa Bird Life, and three documentation forms submitted to the committee.
|
Dinsmore, Stephen J.
|
Iceland Gull
|
Saylorville Dam
|
Saylorville Res., Polk Co.
|
large reservoir
|
The documentation form by Stephen J. Dinsmore is the earliest and the one that forms the basis of this record. Other documentation forms by Thomas H. Kent and Jim Fuller were submitted later. Another observer includes Chuck Fuller. | Elimination of similar species: The three most similar species are Herring, Thayer's, and Glaucous gulls in first-basic plumage. The latter was eliminated by its larger size and longer, heavier, bicolored bill. First-basic Herring Gull is much darker overall with primaries darker than the upperwing coverts, a pale window on the inner primaries, and rectrices that are all black. First-basic Thayer's Gull is the hardest to eliminate. Thayer's always show primaries that are as dark or darker than the rest of the wing. The dark tail band of Thayer's is always darker than the mantle and apparently matches the color of the wingtips (Kaufman 1990). | The original documentation form event lasted from 11:30:00/13:10:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
|
Records Committee review for rare bird sighting of Iceland Gull at Lock and Dam 15 near Davenport, 1996
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-01-05
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for an Iceland Gull at Lock and Dam 15 near Davenport in Scott County, IA on January 5, 1996. Includes a record review document with votes and two documentation forms submitted to the committee.
|
Fuller, James L
|
Iceland Gull
|
Lock and Dam 15
|
Lock & Dam #15, Davenport (Scott County)
|
|
The documentation form by Jim Fuller forms the basis of this record. Another documentation form by Chris Edwards was submitted. Other observers include Kurt Nelson, Eugene Armstrong, Eloise Armstrong, Pam Allen, and Reid Allen. | Elimination of similar species: Comparisons to Thayer's Gull have been made in the description. First-year Glaucous Gull is larger, and has a two-tone black-tipped bill. | The original documentation form event lasted from 08:45:00/09:20:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
|
Records Committee review for rare bird sighting of Iceland Gull at Red Rock Dam, 1996
|
Administrative records Correspondence Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-04-06
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for an Iceland Gull at Red Rock Dam in Marion County, IA on April 6, 1996. Includes a record review document with votes, correspondence about bird sightings, and a documentation form submitted to the committee.
|
Sinclair, Jim
|
Iceland Gull
|
Red Rock Dam
|
below dam at Red Rock, Marion Co.
|
D.M. River
|
The documentation form by Jim Sinclair is the only one submitted and forms the basis of this record. | Elimination of similar species: This bird did not have the large headed, large billed 'predatory' look of a Glaucous Gull. The overall lightness and the lack of dark primaries and no tail band would eliminate Thayers Gull. | The original documentation form event lasted from 10:54:00/10:56:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
|
Records Committee review for rare bird sighting of Iceland Gull south of Muscatine, 1996
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-12-28
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for an Iceland Gull south of Muscatine in Muscatine County, IA on December 28, 1996. Includes a record review document with votes and a documentation submitted to the committee.
|
White, Gerald
|
Iceland Gull
|
Muscatine
|
On the Mississippi River approximately three miles south of Lock 16.
|
|
The documentation by Gerald White is the only one submitted and forms the basis of this record. Other observers include Betty Wood and Keith Blunt. | Elimination of similar species: [...] The bill appeared smaller than the bills of near-by Herring Gulls. The bird size was near the same size or smaller than the Herring Gulls. [...] I eliminated Glaucous Gull because it would have been larger and heavier looking and the bill would not have been all dark. | The original documentation form event lasted from 11:50:00/11:52:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
|
Records Committee review for rare bird sighting of Iceland Gull at Red Rock Reservoir Dam, 1997
|
Administrative records Clippings (information artifacts) Correspondence Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1997-03-19
|
2000-11-24
|
Rare birds documentation form
|
Records Committee review for an Iceland Gull at Red Rock Reservoir Dam in Marion County, IA on March 19, 1997. Includes a record review document with votes, photocopies of three photographs, an article in American Birds, an article in Birding, an article in Iowa Bird Life, correspondence about related bird sightings and review, documentation form for a related sighting and review, and a documentation form submitted to the committee for this review.
|
Brees, Aaron
|
Iceland Gull
|
Red Rock Dam
|
Red Rock Dam, Marion County, Iowa
|
rock bar below dam, in association with Ring-billed and Herring Gulls
|
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
|
Records Committee review for rare bird sighting of Iceland Gull at Red Rock Reservoir Dam, 1997
|
Administrative records Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1997-12-17
|
2000-11-24
|
Rare birds documentation form
|
Records Committee review for an Iceland Gull at Red Rock Reservoir Dam in Marion County, IA on December 17, 1997. Includes a record review document with votes, a photograph, and three documentation forms submitted to the committee.
|
Proescholdt, Mark
|
Iceland Gull
|
Red Rock Dam
|
Red Rock Reservoir - (Marion Co.)
|
Below the dam - churning waters
|
The documentation form by Mark Proescholdt forms the basis of this record. Other documentation forms by Michael D. Overton and Stephen J. Dinsmore were submitted. Other observers include Kay Niyo, Curt Nelson, Jan Walter, Chris Wood, and Jim Sandrock. | Elimination of similar species: [...] We saw this gull twice in our viewing time and debated if it was an adult Kumlien's Iceland Gull or an adult Thayer's Gull. It was an adult Kumlien's Iceland Gull because a Thayer's Gull has much more blackish coloration at the primary tips and more dark coloration at the primary tips than the Kumlien's which has grayish markings on the primary tips and less dark-colored markings at the primary tips overall. Also, a Kumlien's Iceland Gull shows the almost white wing tips like we saw with a little grayish markings on some primary tips. | The original documentation form event lasted from approximately 15:00:00/16:15:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
|
Records Committee review for rare bird sighting of Iceland Gull at Red Rock Reservoir Dam, 1997
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1997-12-21
|
2000-11-24
|
Rare birds documentation form
|
Records Committee review for an Iceland Gull at Red Rock Reservoir Dam in Marion County, IA on December 21, 1997. Includes a record review document with votes and a documentation form submitted to the committee.
|
Kenne, Matthew C.
|
Iceland Gull
|
Red Rock Dam
|
Red Rock Res, Marion Co.
|
spillway below Red Rock Res.
|
The documentation form by Matt Kenne is the only one submitted and forms the basis of this record. Other observers include Eugene Armstrong and Eloise Armstrong. | Elimination of similar species: Glaucous Gull larger with bicolored bill. Thayer's has noticeable tail band, overall color usually darker, and upper side of primaries darker, especially the tips. Secondary bar not present. | The original documentation form event occurred periodically from 08:00:00/11:00:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
|
Records Committee review for rare bird sighting of Lesser Black-backed Gull at Red Rock Reservoir Dam, 1984
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1984-12-03
|
1993-09-01
|
Rare birds documentation form
|
Records Committee review for a Lesser Black-backed Gull at Red Rock Reservoir Dam in Marion County, IA on December 3, 1984. Includes a record review document with votes, an article in Iowa Bird Life, and nine documentation forms submitted to the committee.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Lesser Black-backed Gull
|
Red Rock Dam
|
Red Rock Res., Marion Co. Iowa.
|
Des Moines River below Red Rock Reservoir dam.
|
The documentation form by Thomas H. Kent forms the basis of this record. Other documentation forms by Francis L. Moore, Robert K. Myers, Beth Proescholdt, Thomas J. Staudt, Peter C. Petersen, Dennis Thompson, Carl J. Bendorf, and Mark Proescholdt were submitted. Other observers include Hank Zaletel, Phyllis Harris, Gil Sandvick, Carol McMillen, Pauline Mairs, Gladys Black, Jim Fuller, Darwin Koenig, Eugene Armstrong, Eloise Armstrong, John Bowles, and other unidentified observers. | Elimination of similar species: Size and yellow legs exclude Great Black-backed, Western, and Slaty-backed Gulls. Size excludes Yellow-footed Gull. Mantle to [sic] dark for California Gull and leg color too yellow. | The original documentation form event lasted from 08:30:00/09:45:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
5
|
|
Records Committee review for rare bird sighting of Lesser Black-backed Gull at IPL Ponds, 1985
|
Administrative records Correspondence Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1985-05-17
|
1993-09-03
|
Rare birds documentation form
|
Records Committee review for a Lesser Black-backed Gull at IPL Ponds in Pottawattamie County, IA on May 17, 1985. Includes a record review document with votes, correspondence about the bird sighting, a summary of review, and a documentation form submitted to the committee.
|
Wright, Rick
|
Lesser Black-backed Gull
|
MidAmerican Energy Ponds
|
IPPD Settling Ponds, Pottawatamie [sic] Co., Iowa
|
|
The documentation form by Rick Wright is the only one submitted and forms the basis of this record. Other observers include Ken Strom and Marie Strom. | Elimination of similar species: [...] The different mantle colorations of the herring and ring-billed gulls were distinguishable. [...] The presence of other gull species convinced me that I had accurately judged the mantle color of this bird; I was able to compare it with 3 other species, as well as Caspian terns. The size and bill size rule out great Black-backed, the only dark-backed gull with which I am familiar. Although western gull would show a similar upper-wing pattern, I suspect that it too would appear heavy-billed (and would not have yellow feet). Yellow-footed gull is also large and deep-billed, and is probably less likely than lesser black-backed in Iowa. | The original documentation form event occurred around 13:30:00/13:30:30.
|
Iowa Ornithologists' Union | MS 166
|
11
|
5
|
|
Records Committee review for rare bird sighting of Lesser Black-backed Gull at Lock and Dam 19 in Keokuk, 1986
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1986-10-20
|
1993-09-07
|
Rare birds documentation form
|
Records Committee for a Lesser Black-backed Gull at Lock and Dam 19 in Keokuk in Lee County, IA on October 20, 1986. Includes a record review document with votes, an article in Iowa Bird Life, summary of the review, and two documentation forms submitted to the committee.
|
Cecil, Robert I.
|
Lesser Black-backed Gull
|
Lock Number 19
|
Behind dam, Lock and Dam 19, Keokuk, Iowa
|
River rapids
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The documentation form by Robert Cecil forms the basis of this record. Another documentation form by Jim Fuller was submitted. Other observers include Chris Pilliod, Jim Sandrock, Cal Knight, Jane Fuller, Charles Fuller, and James Huntington. | Elimination of similar species: The only species I could not eliminate on the basis of field marks observed was Yellow-footed, which according to Tom Kent (telephone conversation) is not a known vagrant. More objectively, the Yellow-footed is supposed to be larger than a Herring Gull. As stated above, this bird was about the size of a Herring Gull, or perhaps a little smaller. I don't feel it was larger than a Herring Gull. Seabirds (Harrison) warns of possible confusion with dark race Herring Gull. I have not heard of this race occuring [sic] in Iowa. In any event, the foot coloring was incorrect for Herring Gull, which has pink legs in contrast to this bird's yellow legs. | The original documentation form event occurred at various times.
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Iowa Ornithologists' Union | MS 166
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11
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5
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Records Committee review for rare bird sighting of Lesser Black-backed Gull at Saylorville Dam, 1986
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Administrative records Field notes
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Bird watching Ornithology Ornithology--Societies, etc
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1986-11-29
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1993-09-07
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Rare birds documentation form
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Records Committee review for a Lesser Black-backed Gull at Saylorville Dam in Polk County, IA on November 29, 1986. Includes a record review document with votes, a summary of review, and three documentation forms submitted to the committee.
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Dinsmore, Stephen J.
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Lesser Black-backed Gull
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Saylorville Dam
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Saylorville Reservoir, Polk Co.
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sitting on ice above dam
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The documentation form by Steve Dinsmore forms the basis of this record. Other documentation forms by Tanya Bray and Barbara Wilson were submitted. Other observers include Peter Wickham, Mark Brogie, and Bery Engebretsen. | Elimination of similar species: Great Black-backed Gull was eliminated by the smaller size, contrast between the wingtips and the rest of the wing, and by the heavy streaking on the head(head should be mostly white on a Great Black-backed Gull). California Gull was eliminated by the darker mantle, darker underwing and dark carpal bar, lack of a dark spot on the bill, and by the dark smudge at the base of the bill(this is characteristic of 3rd summer Lesser Black-backed Gulls and is never present on California Gulls). | The original documentation form event lasted from 10:08:00/12:10:00.
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Iowa Ornithologists' Union | MS 166
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11
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5
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Records Committee review for rare bird sighting of Lesser Black-backed Gull at Elk Rock State Park, 1986
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Administrative records Field notes
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Bird watching Ornithology Ornithology--Societies, etc
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1986-12-03
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1993-09-07
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Rare birds documentation form
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Records Committee review for a Lesser Black-backed Gull at Elk Rock State Park in Marion County, IA on December 3, 1986. Includes a record review document with votes and a documentation form submitted to the committee.
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Petersen, Peter C.
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Lesser Black-backed Gull
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Elk Rock State Park
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[...] resting on mud bar just w. of old Hwy 14 a long north edge of reservoir.
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The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Gil Sandvick was another observer. | Elimination of similar species: [...] Bird slightly smaller than nearby adult Herring Gull, larger than Ring-billed Gulls surrounding it. head white with tan flecking back + mantle slaty grey, much darker than Herring Gull. | The original documentation form event lasted from 14:45:00/14:50:00.
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Iowa Ornithologists' Union | MS 166
|
11
|
5
|
|
Records Committee review for rare bird sighting of Lesser Black-backed Gull at Elk Rock State Park, 1986
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1986-12-11
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1993-09-07
|
Rare birds documentation form
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Records Committee review for a Lesser Black-backed Gull at Elk Rock State Park in Marion County, IA on December 11, 1986. Includes a record review document with votes, a summary of the review, and a documentation form submitted to the committee.
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Fuller, James L
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Lesser Black-backed Gull
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Elk Rock State Park
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on ice in Lake Red Rock as viewed from bluff in N. Elk Rock St. Park
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Reservoir on ice
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The documentation form by Jim Fuller is the only one submitted and forms the basis of this record. | Elimination of similar species: Great Black Backed - size other dark immature gulls - wings - more solid + consistent color + mantle solid dark gray | The original documentation form event lasted from 14:40:00/15:15:00.
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Iowa Ornithologists' Union | MS 166
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11
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5
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