Documents • Iowa State University • Avian Archives of Iowa Online

Title	Genres	Topics	Date (Start)	Date (End)	Type	Description	Creator/Author	Birds	Locations	Locality	Habitat	Remarks

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
Field reports form for submitting seasonal observations of Iowa birds, Thomas H. Kent, spring 1983	Field notes Forms (documents) Reports	Bird watching Birds--Counting Birds--Research Laridae \| Gulls and Terns Accipitridae \| Hawks and Eagles Ciconiiformes \| Herons, Bitterns, Egrets, Ibises, and Storks Ornithology--Methodology Charadriiformes \| Shore-birds, Gulls, and Auks Parulidae \| Warblers Water birds	1983-03-01	1983-05-31	Manuscript, graphic, and printed material	Spring report of birds contributed by Thomas H. Kent, spring 1983. This item was used as supporting documentation for the Iowa Ornithologists' Union Quarterly field report of spring 1983.	Kent, Thomas H. (Thomas Hugh), 1934-	American Avocet Double-crested Cormorant White-eyed Vireo Lapland Longspur Smith's Longspur Purple Gallinule American White Pelican Le Conte's Sparrow Forster's Tern Willet Common Snipe Swainson's Thrush Black Tern Great Egret	Cone Marsh Wildlife Management Area Coralville Lake Forneys Lake Hickory Hill Park Hills Homestead Iowa City Nichols Riverton Wildlife Management Area South Amana Pond Swan Lake Wildlife Management Area MidAmerican Energy Ponds				Iowa Ornithologists' Union \| MS 166	20	7
Field report form contributed by Robert W. Howe, spring 1983	Field notes Forms (documents) Reports	Bird watching Birds--Counting Birds--Research Ornithology--Methodology	1983-03-01	1983-05-31	Manuscript, graphic, and printed material	Spring report of birds contributed by Robert W. Howe. This item was used as supporting documentation for the Iowa Ornithologists' Union Quarterly field report of spring 1983.	Howe, Robert W. (Robert William), 1952-	Killdeer Rough-legged Hawk Blue-gray Gnatcatcher Indigo Bunting Eastern Bluebird Loggerhead Shrike Palm Warbler Baltimore Oriole Swainson's Thrush Gray Catbird Magnolia Warbler Yellow-rumped Warbler Black-throated Green Warbler Ovenbird Scarlet Tanager Canada Goose Nashville Warbler	Appanoose County Indianola Mount Ayr Unionville				Iowa Ornithologists' Union \| MS 166	20	7
Field reports form for submitting seasonal observations of Iowa birds, Richard Jule Hollis, spring 1983	Field notes Forms (documents) Reports	Bird declines Bird watching Birds--Counting Birds--Research Ornithology--Methodology	1983-03-01	1983-05-31	Manuscript, graphic, and printed material	Spring report of birds contributed by Richard Jule Hollis. This item was used as supporting documentation for the Iowa Ornithologists' Union Quarterly field report of spring 1983.	Hollis, Richard Jule	Red-headed Woodpecker American Avocet Ring-billed Gull Yellow-headed Blackbird Purple Martin Loggerhead Shrike Yellow-billed Cuckoo Cinnamon Teal Common Loon Wood Duck Sora Black-billed Cuckoo Bonaparte's Gull Sharp-shinned Hawk Cliff Swallow	Coralville Lake Hickory Hill Park Iowa City Riverton Wildlife Management Area Swan Lake Wildlife Management Area Nebraska City Riverton North Liberty				Iowa Ornithologists' Union \| MS 166	20	7
IOU field report form contributed by Douglas C. Harr, June 1, 1983	Field notes Forms (documents) Reports	Bird kills Bird watching Birds--Counting Ornithology--Methodology Research Weather	1983-06-01	N/A	Manuscript, graphic, and printed material	Spring report of birds found in northwest Iowa contributed by Douglas C. Harr, June 1, 1983. This item was used as supporting documentation for the Iowa Ornithologists' Union Quarterly field report of spring 1983.	Harr, Douglas C.	Turkey Vulture Lapland Longspur American White Pelican Brown Thrasher Long-eared Owl Sedge Wren Yellow-rumped Warbler Swamp Sparrow Snow Goose Northern Waterthrush American Redstart Common Merganser	Horseshoe Bend County Recreation Area Larchwood Osceola County Paullina Rush Lake Spirit Lake Sutherland Sheldon O'Brien County Silver Lake Superior Primghar				Iowa Ornithologists' Union \| MS 166	20	7
Field reports form for submitting seasonal observations of Iowa birds, Ronald Harms, spring 1983	Field notes Forms (documents) Reports	Bird watching Birds--Counting Birds--Research Ornithology--Methodology Emberizidae \| Sparrows	1983-03-01	1983-05-31	Manuscript, graphic, and printed material	Spring report of birds found in northwest Iowa contributed by Ronald Harms. This item was used as supporting documentation for the Iowa Ornithologists' Union Quarterly field report of spring 1983.	Harms, Ronald	Yellow-bellied Sapsucker Bald Eagle Brewer's Blackbird Cedar Waxwing White-eyed Vireo Summer Tanager Chimney Swift American Woodcock Purple Finch Willet Tree Swallow Hermit Thrush Ovenbird Hairy Woodpecker Golden-crowned Kinglet Blackburnian Warbler Winter Wren American Redstart Great Blue Heron Brown Creeper	Clay County Laurens Pocahontas County Sunken Grove State Game Management Area Buena Vista County O'Brien County Rush Lake				Iowa Ornithologists' Union \| MS 166	20	7
James L. Hansen letter to Thomas H. Kent regarding spring bird sightings and accompanying field notes, June 1, 1983	Correspondence Field notes Forms (documents) Reports	Bird kills Bird watching Birds--Counting Birds--Research Anseriformes \| Ducks, Geese, and Swans Ornithology--Methodology Parulidae \| Warblers Water birds Weather	1983-06-01	N/A	Manuscript, graphic, and printed material	Letter with accompanying field notes from James L. Hansen to Thomas H. Kent regarding spring bird sightings in north central Iowa, June 1, 1983. This item was used as supporting documentation for the Iowa Ornithologists' Union Quarterly field report of spring 1983.	Hansen, James L.	Least Bittern Double-crested Cormorant Horned Grebe Blue-winged Teal American White Pelican Western Kingbird Cattle Egret Le Conte's Sparrow Forster's Tern Wood Duck Common Snipe Northern Saw-whet Owl Golden-crowned Kinglet Tundra Swan	Big Wall Lake Wildlife Management Area Clear Lake Elm Lake Thornton Ventura McIntosh Woods State Park Ventura Marsh Wildlife Management Area				Iowa Ornithologists' Union \| MS 166	20	7
David Ewert letter to Thomas H. Kent regarding a Cerulean Warbler sighting, May 23, 1983	Correspondence Field notes	Bird watching Birds--Research Ornithology--Methodology	1983-05-23	N/A	Manuscript, graphic, and printed material	Letter from David Ewert to Thomas H. Kent regarding a Cerulean Warbler sighting. This item was used as supporting documentation for the Iowa Ornithologists' Union Quarterly field report of spring 1983.	Ewert, David N.	Cerulean Warbler	Stone State Park				Iowa Ornithologists' Union \| MS 166	20	7
Field notes contributed by Mark D. Dixon, spring 1983	Field notes Forms (documents) Reports	Bird watching Birds--Counting Birds--Research Ornithology--Methodology Scolopacidae \| Sandpipers, Phalaropes, and allies Charadriiformes \| Shore-birds, Gulls, and Auks Fringillidae \| Finches Vireonidae \| Vireos Parulidae \| Warblers Weather Emberizidae \| Sparrows	1983-03-01	1983-05-31	Manuscript, graphic, and printed material	Spring report of birds found in central Iowa contributed by Mark D. Dixon. This item was used as supporting documentation for the Iowa Ornithologists' Union Quarterly field report of spring 1983.	Dixon, Mark D.	Marbled Godwit Semipalmated Sandpiper Greater Yellowlegs Long-billed Dowitcher Lesser Yellowlegs Stilt Sandpiper Short-billed Dowitcher	Booneville Dallas County Des Moines Madison County Saylorville Lake Walnut Woods State Park Badger Creek State Recreation Area Ashworth Park				Iowa Ornithologists' Union \| MS 166	20	7
Field reports form for submitting seasonal observations of Iowa birds, Stephen J. Dinsmore, spring 1983	Field notes Forms (documents) Reports	Bird watching Birds--Counting Birds--Nests Birds--Research Anseriformes \| Ducks, Geese, and Swans Tyrannidae \| Flycatchers Laridae \| Gulls and Terns Accipitridae \| Hawks and Eagles Ornithology--Methodology Scolopacidae \| Sandpipers, Phalaropes, and allies Fringillidae \| Finches Hirundinidae \| Swallows Turdidae \| Thrushes Vireonidae \| Vireos Parulidae \| Warblers Troglodytidae \| Wrens Emberizidae \| Sparrows	1983-03-01	1983-05-31	Manuscript, graphic, and printed material	Spring report of birds found in central Iowa contributed by Stephen J. Dinsmore. A note indicating the dates and amount of time observing birds at the Ames High School Prairie is included. This item was used as supporting documentation for the Iowa Ornithologists' Union Quarterly field report of spring 1983.	Dinsmore, Stephen J.	Red-headed Woodpecker Semipalmated Sandpiper Double-crested Cormorant Blue Jay Yellow-headed Blackbird Lapland Longspur Canvasback Tree Swallow Greater White-fronted Goose American Golden Plover	Little Wall Lake Des Moines River Doolittle Prairie State Preserve Hendrickson Marsh Lake Ledges State Park Marshall County Peterson Pits Recreation Area Polk County Saylorville Lake Anderson Goose Lake McFarland Lake Park Larson Marsh Ames High Prairie/Richard W. Pohl Memorial Preserve Colo Bogs Wildlife Management Area				Iowa Ornithologists' Union \| MS 166	20	7
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 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 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 Thayer's Gull at Red Rock Dam, 1991	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1991-11-25	1993-07-17	Rare birds documentation form	Records Committee review for a Thayer's Gull at Red Rock Dam in Marion County, IA on November 25, 1991. Includes a record review document with votes and two documentation forms submitted to the committee.	Johnson, Ann	Thayer's Gull	Red Rock Dam	Below dam, Red Rock Reservoir, Marion Co., IA	Gravel bar and open river	The documentation form by Ann Johnson forms the basis of this record. Another documentation form by Thomas H. Kent was submitted. Other observers include Jim Fuller, Dick Tetrault, and Tim Schantz. \| Elimination of similar species: Herring Gull was eliminated by the light and uniform body color, pale gray primaries, secondaries and tailband, lack of a window from above, and lack of any color to the underside of the primaries. The bird certainly had the overall coloration of a first year Iceland Gull. However, Iceland Gull was eliminated based on the darker secondaries, complete gray tail band, and the darker webs to the outer primaries from above. \| The original documentation form event lasted from 16:10:00/16:50:00 on November 25, 1991 and 13:50:00/14:05:00 on November 28, 1991.	Iowa Ornithologists' Union \| MS 166	11	3
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 Red Rock Reservoir Dam, 1991	Administrative records Clippings (information artifacts) Correspondence Field notes Photographs	Bird watching Ornithology Ornithology--Societies, etc	1991-03-13	1993-07-17	Rare birds documentation form	Records Committee review for an Iceland Gull at Red Rock Reservoir Dam in Marion County, IA on March 13, 1991. Includes a record review document with votes, seven photographs, an article in Iowa Bird Life, correspondence about bird sighting and review, and eleven documentation forms submitted to the committee.	Schantz, Tim	Iceland Gull	Red Rock Dam	Below Red Rock Dam, Marion County, Iowa		The documentation form by Tim Schantz is the earliest and the one that forms the basis of this record. Other documentation forms by Jim Fuller, Ann Johnson, Thomas H. Kent, Diane Porter, Jim Sinclair, Stephen Dinsmore, James Dinsmore, Beth Proescholdt, and Mark Proescholdt were submitted later. Other observers include Dawn DeVore, Dick Tetrault, Jim Scheib, Beth Brown, Michael Porter, Eugene Armstrong, Eloise Armstrong, and many unidentified observers. \| Elimination of similar species: [...] Iowa Birds mentions that there is a problem separating Iceland with Thayers. If there was any problem with this bird being anything it was a Glaucous Gull of the same age. However the bird was smaller than the Herring Gulls that were on the roost. Long wings will rule out the rare small race of Glaucous Gull. There are not to [sic] many birds that have primaries lighter than the mantle in the sitting bird.	Iowa Ornithologists' Union \| MS 166	11	4
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
Records committee review for rare bird sighting of Iceland Gull at Campbell's Island in East Moline, 1974	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1974-12-02	1993-09-03	Rare birds documentation form	Records Committee review for an Iceland Gull at Campbell's Island in East Moline in Rock Island County, IL on December 2, 1974. Includes record review documents with votes, an article in Iowa Bird Life, summary of the review, and two documentation forms submitted to the committee.	Fawks, Elton	Iceland Gull	Campbells Island	From my residence, Campbell's Island, East Moline, Ill. 3 miles downstream from Lock & Dam 14, Mississippi River	First seen at mouth of Honey Creek, flowing into Miss. R.	The documentation form by Elton Fawks forms the basis of this record. Another documentation form by Ernie Salder was submitted. Other observer includes Mark Henderson and unidentified individuals on a Christmas Bird Count. \| Elimination of similar species: Glaucous Gull \| The original documentation form event lasted from 11:00:00/12:00:00.	Iowa Ornithologists' Union \| MS 166	11	4
Records Committee review for rare bird sighting of Iceland Gull near Le Claire, 1985	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1985-12-27	1993-09-03	Rare birds documentation form	Records Committee review for a Iceland Gull near Le Claire in Scott County, IA on December 27, 1985. Includes a record review document with votes and two documentations submitted to the committee.	Brogie, Mark A. Wickham, Peter P.	Iceland Gull	Le Claire	[...] along the Mississippi River approximately one-half mile north of the Interstate 80 bridge in Scott County, Iowa.		The documentation form by Mark Brogie and Peter P. Wickham forms the basis of this record. Another documentation form by Paul Martsching was submitted. Another observer includes Steve Dinsmore. \| Elimination of similar species: [...] The bird was in the company of several Herring Gulls (Larus argentatus) and three subadult Glaucous Gulls (Larus hyperboreus). Two of the Glaucous Gulls were light plumaged birds lacking a gray mantle and, since eye color was not noted, may have been either first or early second winter birds. The third Glaucous was quite buffy and was undoubtably [sic] a first winter bird. The Iceland Gull was first observed being chased by a light-phased Glaucous and was distinctly smaller and lighter colored. It also flew with a faster wingbeat and had a more buoyant flight than that of the larger bird. Glaucous Gulls were also observed chasing Herring Gulls but at no time was intraspecific chasing observed. During several instances two Glaucous Gulls were observed resting on the water or sitting on the ice together, but the Iceland always remained isolated from these birds. At one point the Iceland Gull circled overhead at a distance of approximately 40 yards in the company of a light-phased Glaucous and an immature Herring Gull, and characteristics between the species were well noted. The plumage of the Iceland was wholly white with a faint buffy tinge, yet distinctly whiter than the Glaucous Gull. The size difference between the Glaucous and the other two species was apparent as the Iceland and Herring were of approximately equal size. The head and bill of the Iceland Gull appeared less robust in shape than the Glaucous although both species had a bicolored bill with a flesh colored base and dark tip. [...] The brown barring of the undertail coverts of the Iceland appeared heavier and more noticable [sic] than in its white-winged congeneric counterpart, and contrasted particularly with the whitish tail. \| The original documentation form event lasted for approximately twenty minutes.	Iowa Ornithologists' Union \| MS 166	11	4
Records Committee review for rare bird sighting of Iceland Gull near Lock and Dam 15 near Davenport, 1985	Administrative records Clippings (information artifacts) Correspondence Field notes Tables (documents)	Bird watching Ornithology Ornithology--Societies, etc	1985-12-22	1993-09-03	Rare birds documentation form	Records Committee review for a Iceland Gull near Lock and Dam 15 near Davenport in Scott County, IA on December 22, 1985. Includes record review documents with votes, articles in Illinois Birds and Birding as well as American Birds, correspondence about the bird sighting, and four documentation forms submitted to the committee.	Petersen, Peter C.	Iceland Gull	Lock and Dam 15	Location: Davenport. County: Scott	General: Chanel [sic] of Miss. R., near middle of river when standing. Specific: 1/2 - 3/4 mi. above Lock + Dam 15.	The documentation form by Peter C. Petersen forms the basis of this record. Other documentation forms by Ann Barker, Mary Lou Petersen, and Bill Barker were submitted. Other observers include Steve Dinsmore, Paul Martsching, Pete Wickham, Mark Brogie, Lewis Blevins, Corey Blevins, Brett Ashford, and Dale Dickinson. \| Elimination of similar species: Glaucous Gull eliminated by size, wing extention [sic] well beyond tail. Flight, headshape, all emphasized by direct comparison with Glaucous Gulls. The next afternoon Bill Barker compared this bird to two different sized Glaucous Gulls and it was smaller than the smaller Glaucous Gull. Plumage lighter than Glaucous also. \| The original documentation form event lasted from 11:40:00/12:10:00.	Iowa Ornithologists' Union \| MS 166	11	4
Records Committee review for rare bird sighting of Thayer's Gull at Lock and Dam 15 near Davenport, 1991	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1991-12-31	1993-07-17	Rare birds documentation form	Records Committee review for a Thayer's Gull at Lock and Dam 15 near Davenport in Scott County, IA on December 31, 1991. Includes a record review document with votes and a documentation form submitted to the committee.	Kent, Thomas H. (Thomas Hugh), 1934-	Thayer's Gull	Lock and Dam 15	Lock + Dam 15, Davenport, Scott Co., IA	Mississippi River	The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. \| Elimination of similar species: Translucent flight feathers and upper wing pattern and lighter tail band separate from Herring Gull \| The original documentation form event lasted from 14:30:00/14:35:00.	Iowa Ornithologists' Union \| MS 166	11	3
Records Committee review for rare bird sighting of Thayer's Gull at Lock and Dam 13, 1991	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1991-12-28	1993-07-17	Rare birds documentation form	Records Committee review for two Thayer's Gulls at Lock and Dam 13 in Clinton County, IA on December 28, 1991. Includes a record review document with votes and a documentation form submitted to the committee.	Blevins, Brian L.	Thayer's Gull	Lock and Dam 13	Lock + Dam 13 on Mississippi River	Mississippi River Flyway just Below the Dam	The documentation form by Brian Blevins is the only one submitted and forms the basis of this record. Other observers include Corey Blevins, Lewis Blevins, and Jennifer Anderson. \| Elimination of similar species: Herring Gull -> eliminated by the light brown color continuous all the way throughout the wingtips, thus there was not a darkening towards the wing tips. The mantle was also lighter than those of the nearby Herring Gulls. \| The original documentation form event lasted from 14:30:00/14:50:00.	Iowa Ornithologists' Union \| MS 166	11	3
Records Committee review for rare bird sighting of Thayer's Gull at Lock and Dam 15 near Davenport, 1991	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1991-12-15	1993-07-17	Rare birds documentation form	Records Committee review for two Thayer's Gull at Lock and Dam 15 near Davenport in Scott County, IA on December 15, 1991. Includes a record review document with votes and a documentation form submitted to the committee.	Blevins, Brian L.	Thayer's Gull	Lock and Dam 15	Lock + Dam 15 on Mississippi River	Mississippi River Flyway just below the Dam	The documentation form by Brian Blevins is the only one submitted and forms the basis of this record. Other observers include Corey Blevins, Lewis Blevins, and Peter C. Petersen. \| Elimination of similar species: Herring Gull -> Immature - eliminated by the light brown color continuous all the way throughout the wingtips, thus there was not a darkening towards the wing tips. Adult - eliminated by the light mantle getting lighter towards the wingtips, with just a few grey spots on the primaries. \| The original documentation form event lasted from 15:15:00/15:45:00.	Iowa Ornithologists' Union \| MS 166	11	3
Records Committee review for rare bird sighting of Thayer's Gull at Red Rock Dam, 1991	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1991-12-07	1993-07-17	Rare birds documentation form	Records Committee review for a Thayer's Gull at Red Rock Dam in Marion County, IA on December 7, 1991. Includes a record review document with votes and a documentation form submitted to the committee.	Kent, Thomas H. (Thomas Hugh), 1934-	Thayer's Gull	Red Rock Dam	Red Rock Res., Marion Co., IA	below dam on river	The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Other observers include around twenty unidentified observers on IOU field trip. \| Elimination of similar species: Much lighter and more uniform than 1st winter Herring Gulls flying in area. \| The original documentation form event lasted from 08:00:00/09:00:00.	Iowa Ornithologists' Union \| MS 166	11	3
Record Committee review for rare bird sighting of Thayer's Gull at Gray's Lake, 1991	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1991-11-30	1993-07-17	Rare birds documentation form	Records Committee review for a Thayer's Gull at Gray's Lake in Polk County, IA on November 30, 1991. Includes a record review document with votes and a documentation form submitted to the committee.	Cecil, Robert I.	Thayer's Gull	Grays Lake	Gray's Lake, Des Moines, Polk County, IA	Lake with some open water	The documentation form by Bob Cecil is the only one submitted and forms the basis of this record. Another observer includes Mary Michelle Cecil. \| Elimination of similar species: Herring much more "contrasty", including dark secondary bar, dark tail band, very dark towards ends of primaries. This bird was smaller than 1st wither [sic] Herring, as well as paler brown. \| The original documentation form event lasted from 10:30:00/11:00:00.	Iowa Ornithologists' Union \| MS 166	11	3