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 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	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 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 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 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 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 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 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 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 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