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

Field reports form for submitting seasonal observations of Iowa birds, summer 1993, Douglas Harr	Field notes Forms (documents)	Bird watching Birds--Identification Birdsongs Ornithology Rare birds	1993-06-01	1993-07-31	Manuscript, graphic, and printed material	Field reports by Douglass Harr for birds sighted during the summer of 1993. It features the Barn Owl south of Larchwood in Lyon County, IA on July 27, 1993.	Harr, Douglas C.	Barn Owl Cattle Egret Hooded Merganser	Larchwood Sioux Center Spirit Lake				Iowa Ornithologists' Union \| MS 166	34	48
Iowa Ornithologists' Union, field report compiled data, Golden-crowned Kinglet, 1960-1983	Field notes	Bird watching Birds--Counting Birds--Research	1960-05-15	1983-05-08	Manuscript, graphic, and printed material	Compilation of sightings data for the Golden-crowned Kinglet submitted to the Iowa Ornithologists' Union by members between the years 1960-1983. The document also includes the name of the observer, date, and location.	Iowa Ornithologists' Union	Golden-crowned Kinglet	Iowa				Iowa Ornithologists' Union \| MS 166	36	48
Iowa Ornithologists' Union, field report compiled data, Horned Lark, 1980-1983	Field notes	Bird watching Birds--Counting Birds--Research	1980-12-01	1983-02-14	Manuscript, graphic, and printed material	Compilation of sightings data for the Horned Lark submitted to the Iowa Ornithologists' Union by members between the years 1980-1983. The document also includes the name of the observer, date, and location.	Iowa Ornithologists' Union	Horned Lark	Iowa				Iowa Ornithologists' Union \| MS 166	36	49
Records Committee review for rare bird sighting for Boreal Chickadee at Osage, 1978	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1978-11-24	1993-08-26	Rare birds documentation form	Records Committee review for two Boreal Chickadees at Osage in Mitchell County, IA on November 24, 1978. Includes a record review document with votes, an article in Iowa Bird Life, and a documentation form submitted to the committee.	Woolfries, Andy	Boreal Chickadee	Osage	Osage, Iowa Home Feeder board	Home bird feeder - back yard - shrubs and trees.	The documentation form by Andy Woolfries is the only one submitted and forms the basis of this record. \| Elimination of similar species: Associated with other chickadees but noticable [sic] because of distinctive brown cap. There appeared to be only two. They were positively identified at least 20 times from a distance of about six feet. Reference: "Birds of North America". \| The original documentation form event occurred at least 20 times over November 24 to 26, 1978.	Iowa Ornithologists' Union \| MS 166	12	49
Records Committee review for rare bird sighting for Boreal Chickadee at Des Moines, 1976	Administrative records Clippings (information artifacts) Field notes Photographs	Bird watching Ornithology Ornithology--Societies, etc	1976-11-17	1996-04-24	Rare birds documentation form	Records Committee review for a Boreal Chickadee at Des Moines in Polk County, IA on November 17, 1976. Includes a record review document with votes, a photograph, multiple articles from Iowa Bird Life, a request for reconsideration of record, and a documentation form submitted to the committee.	Brown, Woodward H.	Boreal Chickadee	Des Moines	Des Moines, IA	General: urban, residential Specific: large back yard with both evergreen and deciduous trees and large stand of yew adjacent to feeders	The documentation form by Woodward H. Brown is the only one submitted and forms the basis of this record. Other observers include Dick Mooney, Nicholas Halmi, Lurene Warters, and many unidentified observers. \| Elimination of similar species: Superficially similar to any of the chickadees \| The original documentation form event lasted from 15:45:00/16:15:00.	Iowa Ornithologists' Union \| MS 166	12	49
Records committee review for rare bird sighting of Lesser Black-backed Gull at Red Rock Dam, 1989	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1989-10-05	1993-08-06	Rare birds documentation form	Records committee review for a Lesser Black-backed Gull at Red Rock Dam in Marion County, IA on October 5, 1989. Includes a record review document with votes and four documentation forms submitted to the committee.	Johnson, Ann	Lesser Black-backed Gull	Red Rock Dam	Below Red Rock Dam, near Pella, Marion Co., IA	River with numerous sand and gravel bars	The documentation form by Ann Johnson forms the basis of this record. Other documentation forms by Jim Sinclair, Raymond Cummins, and James Fuller were submitted. Other observers include Marlys Huff, David Youngblut, Pete Wickham, John Daniel, and Ken Lowder. \| Elimination of similar species: Great Black-backed Gull- The bird was not large enough nor was the bill as massive. The great black-backed should also show a whiter head and lighter inner primaries and the back would be more of a checkerboard than the scaliness of this bird. Herring Gull- Because of variability, eliminating the herring was more problematic. Size was not particularly helpful initially in that this bird was near the second-year herring gull for such a brief time that I really couldn't make comparison. The variable sizes of ring-bills were of no help because next to some it looked huge and next to others it was only some larger. Some subtle differences were helpful in making this bird "look different" but I don't believe they could be considered sufficient. The checkered, scaly look was more pronounced than most juvenile herrings. The wings seemed long as they extended beyond the tail. The bill was entirely black and the tail band more distinct than most juvenile herrings. The color distinction between the head/tail and body from a distance were also helpful. The clincher, however, was during flight when no "windows" were visible on the inner primaries and the dark secondary coverts created a wide, dark trailing edge to the wing. These flight indicators, as well as size differential, were confirmed on the 23 October sighting. \| The original documentation form event lasted from 15:10:00/16:00:00 and 16:15:00/16:40:00.	Iowa Ornithologists' Union \| MS 166	11	5
Records Committee review for rare bird sighting of Lesser Black-backed Gull at the Des Moines River in Des Moines, 1993	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1993-12-21	1995-07-08	Rare birds documentation form	Records Committee review for a Lesser Black-backed Gull at the Des Moines River in Des Moines in Polk County, IA on December 21, 1993. Includes a record review document with votes and a documentation form submitted to the committee.	Cecil, Robert I.	Lesser Black-backed Gull	Des Moines	Des Moines River, Downtown Des Moines, Polk County, Iowa	River	The documentation form by Robert Cecil is the only one submitted and forms the basis of this record. \| Elimination of similar species: Most other dark mantled gulls have pink legs. Yellow-footed gull is larger in size than Herring. \| The original documentation form event lasted from 16:00:00/16:15:00.	Iowa Ornithologists' Union \| MS 166	11	5
Records Committee review for rare bird sighting of Lesser Black-backed Gull at Coralville Dam, 1993	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1993-12-11	1995-07-08	Rare birds documentation form	Records Committee review for a Lesser Black-backed Gull at Coralville Dam in Johnson County, IA on December 11, 1993. Includes a record review document with votes and three documentation forms submitted to the committee.	Pinkston, Randall, 1956-	Lesser Black-backed Gull	Coralville Dam	Coralville Reservoir dam, Johnson County, Iowa		The documentation form by Randy Pinkston is the earliest and the one that forms the basis of this record. Other documentation forms by Carl Bendorf and Jim Fuller were submitted later. Other observers include John McLure, Chris Edwards, Jonnie Ellsworth, Lanny Haldy, Randy Graesser, Dan Ray, Angela Ray, Kathleen Kuenstling, Tom Kent, and many unidentified other observers. \| Elimination of similar species: Size and appearance rule out all other regular and vagrant North American gulls. \| The original documentation form event lasted from 15:30:00/16:00:00.	Iowa Ornithologists' Union \| MS 166	11	5
Records Committee review for rare bird sighting of Lesser Black-backed Gull at Lake MacBride Beach, 1993	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1993-04-16	1995-07-08	Rare birds documentation form	Records Committee review for a Lesser Black-backed Gull at Lake MacBride Beach 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	Lesser Black-backed Gull	Lake MacBride Beach	Swim Beach of Lake MacBride State Park (Johnson County).		The documentation form by Jim Fuller is the only one submitted and forms the basis of this record. \| Elimination of similar species: All of the other larger gulls that are dark-mantled are larger than Lesser Black-backed. In addition, all those adult birds have pink legs, except Yellow-footed Gull, which has never been seen away from southern California and is larger than Herring Gull. \| The original documentation form event lasted from 15:59:00/16:03:00.	Iowa Ornithologists' Union \| MS 166	11	5
Records Committee review for rare bird sighting of Lesser Black-backed Gull at Coralville Reservoir, 1991	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1991-11-28	1993-07-17	Rare birds documentation form	Records Committee for a Lesser Black-backed Gull at Coralville Reservoir in Johnson County, IA on November 28, 1991. Includes a record review document with votes and a documentation form submitted to the committee.	Kent, Thomas H. (Thomas Hugh), 1934-	Lesser Black-backed Gull	Coralville Lake	Coralville Reservoir, Johnson Co., IA.	Reservoir mostly ice-covered. Gulls around small patch of open water.	The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Jim Fuller was another observer. \| Elimination of similar species: The size, wing and mantle color and yellow legs exclude other species, except perhaps for the most unlikely Yellow-footed Gull, which should be larger. \| The original documentation form event lasted from 08:45:00/09:00:00.	Iowa Ornithologists' Union \| MS 166	11	5
Records Committee review for rare bird sighting of Lesser Black-backed Gull at South Sabula Lakes County Park, 1991	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1991-03-10	1993-07-17	Rare birds documentation form	Records Committee review for a Lesser Black-backed Gull at South Sabula Lakes County Park in Jackson County, IA on March 10, 1991. Includes a record review document with votes, an article in Iowa Bird Life, and a documentation form submitted to the committee.	Fuller, Karole Fuller, James L	Lesser Black-backed Gull	South Sabula Lakes Park	South Sabula Lakes County Park, Sabula, Jackson County	Mississippi River backwater/harbor	The documentation form by Jim and Karole Fuller is the only one submitted and forms the basis of this record. \| Elimination of similar species: All other adult dark mantled gulls have pink legs, except the Yellow-footed gull which is seen at the Salton Sea, and extreme southwest California. That bird has never been seen away from that area, and should be noticeably larger than a Lesser black backed gull. The European race of the Herring gull has yellow legs, and one has been seen on the east coast the past two winters. That bird should be larger, and does not have a dark mantle. \| The original documentation form event lasted from 14:03:00/14:27:00.	Iowa Ornithologists' Union \| MS 166	11	5
Records Committee review for rare bird sighting of Lesser Black-backed Gull at Davenport, 1991	Administrative records Clippings (information artifacts) Field notes Charts (graphic documents)	Bird watching Ornithology Ornithology--Societies, etc	1991-01-16	1993-07-17	Rare birds documentation form	Records Committee review for a Lesser Black-backed Gull at Davenport in Scott County, IA on January 16, 1991. Includes a record review document with votes, an article in Iowa Bird Life, comparisons of different gull sightings, and a documentation form submitted to the committee.	Armstrong, Eloise Armstrong, Eugene	Lesser Black-backed Gull	Davenport	Sand Bar, Center Mississippi river Davenport	River Partly Frozen	The documentation form by Eugene Armstrong and Eloise Armstrong is the only one submitted and forms the basis of this record. Other observers include Peter C. Petersen, Tom Kent, and James Fuller. \| Elimination of similar species: Herring - slightly smaller than herring Ring billed - larger than ring billed Glaucous - much larger than bird seen Great Black Backed - much smaller than great Black Backed Bird was standing + sitting with Ring Bill on left and Herring on right \| The original documentation form event lasted from 15:00:00/15:20:00.	Iowa Ornithologists' Union \| MS 166	11	5
Records Committee review for rare bird sighting of Lesser Black-backed Gull on the Mississippi River near Bettendorf, 1990	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1990-02-17	1993-07-17	Rare birds documentation form	Records Committee review for a Lesser Black-backed Gull on the Mississippi River near Bettendorf in Scott County, IA on February 17, 1990. Includes a record review document with votes and two documentation forms submitted to the committee.	Petersen, Peter C.	Lesser Black-backed Gull	Bettendorf	2/17- on ice over, Miss. River Channel between Moline, IL. + Bettendorf Ia. obs. in Il. 2/19 at Lock + Dam 15 from Ia. side - again in center of river.	Miss. River ice.	The documentation form by Peter C. Petersen forms the basis of this record. Another documentation form by Jim Fuller was submitted. Other observers include Jim Scheib, Ann Barker, and Walter Zuurdeeg. \| Elimination of similar species: Slaty-backed Gull - legs not pink, size Great Black-backed Gull- legs not pink, size, back not dark enough Western Gull - legs not pink, size Yellow footed Gull - size \| The original documentation form event lasted from 09:25:00/09:40:00 on February 17, 1990 and 09:40:00/09:45:00 on February 19, 1990.	Iowa Ornithologists' Union \| MS 166	11	5
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 Sandpiper Beach at Saylorville Reservoir, 1989	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1989-08-19	1993-08-06	Rare birds documentation form	Records Committee review for a Lesser Black-backed Gull at Sandpiper Beach at Saylorville Reservoir in Polk County, IA on August 19, 1989. Includes a record review document with votes and a documentation form submitted to the committee.	Cecil, Robert I.	Lesser Black-backed Gull	Sandpiper Recreation Area	Sandpiper Beach, Sailorville [sic] Reservoir, Polk County, Iowa	Sandy beach	The documentation form by Robert Cecil is the only one submitted and forms the basis of this record. Another observer includes Bery Engebretsen. \| Elimination of similar species: No other species has combination of slate gray mantle and yellow legs other than Yellow-footed, which is not a known vagrant. According to NGS, Yellow-footed is same size as Glaucous. This bird was much smaller - not a whole lot bigger than a Ring-bill. \| The original documentation form event lasted from 09:00:00/09:20:00.	Iowa Ornithologists' Union \| MS 166	11	5
Records Committee review for rare bird sighting of Lesser Black-backed Gull at Jester Park at Saylorville Reservoir, 1988	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1988-12-04	1993-08-04	Rare birds documentation form	Records Committee review for a Lesser Black-backed Gull at Jester Park at Saylorville Reservoir in Polk County, IA on December 4, 1988. Includes a record review document with votes and a documentation form submitted to the committee.	Dinsmore, Stephen J.	Lesser Black-backed Gull	Jester Park	Saylorville Reservoir, Polk Co.-near Jester Park	resting on mud bar with thousands of other gulls	The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. \| Elimination of similar species: The size(larger than Ring-billed Gull, smaller than Herring Gull) eliminates all Gulls except Herring, California, and Lesser Black-backed gulls. Dark mantle color eliminates Herring Gull. The dark gray mantle was too dark for a California Gull, and the legs were a brighter yellow than the dull yellow leg color of a California. \| The original documentation form event lasted from 14:50:00/15:15:00.	Iowa Ornithologists' Union \| MS 166	11	5
Records Committee review for rare bird sighting of Lesser Black-backed Gull near Jester Park at Saylorville Reservoir, 1988	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1988-11-15	1993-08-04	Rare birds documentation form	Records Committee review for a Lesser Black-backed Gull near Jester Park at Saylorville Reservoir in Polk County, IA on November 15, 1988. Includes a record review document with votes and a documentation form submitted to the committee.	Dinsmore, Stephen J.	Lesser Black-backed Gull	Jester Park	Saylorville Reservoir, Polk Co.-near Jester Park	resting on mud bar with thousands of other gulls	The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. Other observers include Bery Engebretsen. \| Elimination of similar species: The size (larger than Ring-billed Gull, smaller than Herring Gull) eliminates all Gulls except Herring, California, and Lesser Black-backed gulls. The mantle was much too dark for a Herring Gull. Separation from California Gull is much more difficult. Obviously, the mantle color of this bird was much too dark for a California Gull, and the legs were more yellow than the legs of a California Gull. \| The original documentation form event lasted from 15:44:00/16:38:00.	Iowa Ornithologists' Union \| MS 166	11	5
Records Committee review for rare bird sighting of Lesser Black-backed Gull at Saylorville Reservoir, 1987	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1987-12-29	1993-09-07	Rare birds documentation form	Records Committee review for a Lesser Black-backed Gull at Saylorville Reservoir in Polk County, IA on December 29, 1987. Includes a record review document with votes and two documentation forms submitted to the committee.	Armstrong, Eugene	Lesser Black-backed Gull	Saylorville Lake	South Saylorville Overlook	Saylorville Ice	The documentation form by Eugene Armstrong is the earliest and the one that forms the basis of this record. Another documentation form by Bery Engebretsen was submitted later. Other observers include Eloise Armstrong and Gale Pederson. \| Elimination of similar species: Greater Black backed gull, this gull much to [sic] small for that species \| The original documentation form event lasted from 09:00:00/10:00:00.	Iowa Ornithologists' Union \| MS 166	11	5
Records Committee review for rare bird sighting of Lesser Black-backed Gull near the Ben Butterworth Parkway, 1987	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1987-02-04	1993-09-07	Rare birds documentation form	Records Committee review for a Lesser Black-backed Gull near the Ben Butterworth Parkway in Rock Island County, IL on February 4, 1987. Includes a record review document with votes and two documentation forms submitted to the committee.	Fuller, Charles R.	Lesser Black-backed Gull	Ben Butterworth Parkway	seen from Riverside Park Moline (Bettendorf IA)	River	The documentation form by Chuck Fuller 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 Mary Lou Petersen, Ann Barker, Jane Fuller, Gerry White, and Tim Dwyer. \| Elimination of similar species: Western - Slatybacked - Yellowlegs Greater Black Backed - size- leg color. difference in mantle color \| The original documentation form event lasted from 15:30:00/16:30:00.	Iowa Ornithologists' Union \| MS 166	11	5
Records Committee review for rare bird sighting of Lesser Black-backed Gull on the Iowa River in Iowa City, 1987	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1987-01-31	1993-09-07	Rare birds documentation form	Records Committee review of Lesser Black-backed Gull on the Iowa River in Iowa City in Johnson County, IA on January 31, 1987. Includes a record review document with votes and two documentation forms submitted to the committee.	Fuller, James L	Lesser Black-backed Gull	Iowa City	Iowa River - Iowa City	River	The documentation form by Jim Fuller forms the basis of this record. Another documentation form by Carl J. Bendorf was submitted. Another observer includes Cal Knight. \| Elimination of similar species: I question bill color. Wings + mantle not dark enough for great black backed + too dark for California Gull. \| The original documentation form event lasted from 09:55:00/10:00:00, 10:10:00/10:15:00, and 13:35:00/13:45:00.	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	1993-09-07	Rare birds documentation form	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.	Fuller, James L	Lesser Black-backed Gull	Elk Rock State Park	on ice in Lake Red Rock as viewed from bluff in N. Elk Rock St. Park	Reservoir on ice	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.	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	1986-12-03	1993-09-07	Rare birds documentation form	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.	Petersen, Peter C.	Lesser Black-backed Gull	Elk Rock State Park	[...] resting on mud bar just w. of old Hwy 14 a long north edge of reservoir.		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.	Iowa Ornithologists' Union \| MS 166	11	5
Records Committee review for rare bird sighting of Lesser Black-backed Gull at Saylorville Dam, 1986	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1986-11-29	1993-09-07	Rare birds documentation form	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.	Dinsmore, Stephen J.	Lesser Black-backed Gull	Saylorville Dam	Saylorville Reservoir, Polk Co.	sitting on ice above dam	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.	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	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.	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