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 for Laughing Gull at Lake Manawa in 1941	Administrative records Clippings (information artifacts) Field notes	Birds--Identification Rare birds	1941-06-01	1993-08-19	Manuscript, graphic, and printed material	Records Committee review for a Laughing Gull at Lake Manawa in Pottawattamie County, IA on March 25, 1941. Includes a record review document with votes and the original sighting record found in the publication The Laughing Gull in Pottawattamie County in Iowa Bird Life 11:36 by B.F. Stiles.	Iowa Ornithologists' Union Records Committee	Laughing Gull	Lake Manawa				Iowa Ornithologists' Union \| MS 166	10	18
Records Committee review for rare bird sighting for Laughing Gull at Blencoe in 1894	Administrative records Clippings (information artifacts) Field notes	Birds--Identification Rare birds	1907-03-01	1993-08-19	Manuscript, graphic, and printed material	Records Committee review for a Laughing Gull at Blencoe in Monona County, IA on October 10, 1894. Includes a record review document with votes, the original sighting record found in the publication Birds of Iowa by Rudolph Martin Anderson seen by H.W. Kerr as reported by J.A. Dickinson and Isadore Trostler, and referenced by two other publications.	Iowa Ornithologists' Union Records Committee	Laughing Gull	Blencoe				Iowa Ornithologists' Union \| MS 166	10	18
Records Committee review for rare bird sighting for Laughing Gull at Mills and Pottawattamie Counties before 1907	Administrative records Clippings (information artifacts) Field notes	Birds--Identification Birds--Migration Rare birds	1907-03-01	1993-08-19	Manuscript, graphic, and printed material	Records Committee review for Laughing Gulls at Mills and Pottawattamie Counties, IA before 1907. Includes a record review document with votes, the original sighting record found in the publication Birds of Iowa by Rudolph Martin Anderson and seen by Isadore Trostler, and referenced in another publication.	Iowa Ornithologists' Union Records Committee	Laughing Gull	Big Lake Lake Manawa Mills County Pottawattamie County				Iowa Ornithologists' Union \| MS 166	10	18
Records Committee review for rare bird sighting for Laughing Gull at Engineer's Contanment around 1819	Administrative records Clippings (information artifacts) Field notes	Birds--Identification Rare birds	1823-01-01	1993-08-19	Manuscript, graphic, and printed material	Records Committee review for Laughing Gulls at Engineer's Contanment, IA around 1819. Includes a record review document with votes, the original sighting record found in the publication Account of an Expedition from Pittsburgh to the Rocky Mountains Performed in the Years 1819 and 1820 by Edwin James and seen by Thomas Say, and referenced by two other publications.	Iowa Ornithologists' Union Records Committee	Laughing Gull	Iowa				Iowa Ornithologists' Union \| MS 166	10	18
Records Committee review for rare bird sighting for Long-tailed Jaeger near Lone Tree in 1907	Administrative records Clippings (information artifacts) Field notes Photographs	Birds--Identification Rare birds Zoological specimens	1908-04-01	1994-02-04	Manuscript, graphic, and printed material	Records Committee review for a Long-tailed Jaeger near Lone Tree in Johnson County, IA on June 15, 1907. Includes a record review document with votes, a photograph of the specimen, the original sighting record found in the publication An addition to the birds of Iowa in Auk 25:215 by R.M. Anderson seen by Charles Prizler, Homer R. Dill, and C.C. Nutting, and referenced by two other publications.	Iowa Ornithologists' Union Records Committee	Long-tailed Jaeger	Lone Tree				Iowa Ornithologists' Union \| MS 166	10	17
Records Committee review for rare bird sighting for Parasitic Jaeger at Sweet Marsh in 1971	Administrative records Clippings (information artifacts) Field notes	Birds--Identification Rare birds	1971-09-01	1994-02-04	Manuscript, graphic, and printed material	Records Committee review for a Parasitic Jaeger at Sweet Marsh in Bremer County, IA on May 15, 1971. Includes a record review document with votes and the original sighting record found in the publication Field Reports in Iowa Bird Life 41:89-90 by Woodward H. Brown seen by Clarise Hewitt.	Iowa Ornithologists' Union Records Committee	Parasitic Jaeger	Sweet Marsh				Iowa Ornithologists' Union \| MS 166	10	16
Records Committee review for rare bird sighting for Parasitic Jaeger near Ruthven in 1934	Administrative records Clippings (information artifacts) Field notes	Birds--Identification Birds--Migration Rare birds	1938-03-01	1994-02-04	Manuscript, graphic, and printed material	Records Committee review for a Parasitic Jaeger near Ruthven in Palo Alto County, IA from May 28, 1934. Includes a record review document with votes and the original sighting record found in the publication The 1934 spring migration of some birds through Clay and Palo Alto Counties in Iowa Bird Life 8:3-6 by L.J. Bennett.	Iowa Ornithologists' Union Records Committee	Parasitic Jaeger	Ruthven				Iowa Ornithologists' Union \| MS 166	10	16
Records Committee review for rare bird sighting for Parasitic Jaeger at Eagle Lake in 1905	Administrative records Clippings (information artifacts) Field notes	Birds--Identification Rare birds Zoological specimens	1907-03-01	1994-02-04	Manuscript, graphic, and printed material	Records Committee review for a Parasitic Jaeger at Eagle Lake in Hancock County, IA on September 20, 1905. Includes a record review document with votes, the original sighting record found in the publication Birds of Iowa by Rudolph Martin Anderson and seen by B.H. Bailey and James Ward, and referenced by another publication.	Iowa Ornithologists' Union Records Committee	Parasitic Jaeger	Eagle Lake				Iowa Ornithologists' Union \| MS 166	10	16
Records Committee review for rare bird sighting for Parasitic Jaeger near Keokuk in 1896	Administrative records Clippings (information artifacts) Field notes Photographs	Birds--Identification Rare birds Zoological specimens	1907-03-01	1994-02-04	Manuscript, graphic, and printed material	Records Committee review for a Parasitic Jaeger near Keokuk in Lee County on October 6, 1896. Includes a record review document with votes, three photographs of the specimen, the original sighting record found in the publication Birds of Iowa by Rudolph Martin Anderson and seen by William E. Praeger and Edmonde S. Currier, and referenced by three other publications.	Iowa Ornithologists' Union Records Committee	Parasitic Jaeger	Keokuk				Iowa Ornithologists' Union \| MS 166	10	16
Records Committee review for rare bird sighting for Jaeger species at Lock and Dam 14 in 1963	Administrative records Clippings (information artifacts) Field notes	Birds--Identification Rare birds	1964-03-01	1994-02-04	Manuscript, graphic, and printed material	Records Committee review for a Jaeger species at Lock and Dam 14 in Scott County, IA on December 6, 1963. Includes a record review document with votes and the original sighting record found in the publication Parasitic Jaeger in eastern Iowa in Iowa Bird Life 34:26 by Peter Petersen, Jr. and also seen by Elton Fawks, Mr. and Mrs. Don Price, Bob Trial, and Ted Greer.	Iowa Ornithologists' Union Records Committee	Jaegers	Lock and Dam 14				Iowa Ornithologists' Union \| MS 166	10	13
Records Committee review for rare bird sighting for Red Phalarope at Amana Lake in 1940	Administrative records Clippings (information artifacts) Correspondence Field notes	Birds--Identification Birds--Migration Rare birds	1940-06-01	1993-08-19	Manuscript, graphic, and printed material	Records Committee review for three Red Phalaropes at Amana Lake in Iowa County, IA on May 17, 1940. Includes a record review document with votes, letters between Thomas Kent and Lillian Serbousek about the sighting, and the original sighting record found in the publication Shore Birds at Amana Lake in Iowa Bird Life 10:27 by Lillian Serbousek.	Iowa Ornithologists' Union Records Committee	Red Phalarope	Lily Pond				Iowa Ornithologists' Union \| MS 166	10	12
Records Committee review for rare bird sighting of Thayer's Gull at Coralville Dam, 1981	Administrative records Correspondence Field notes	Bird watching Ornithology Ornithology--Societies, etc	1981-11-07	1993-08-26	Rare birds documentation form	Records Committee review for two Thayer's Gulls at Coralville Dam in Johnson County, IA on November 7, 1981. Includes a record review document with votes, correspondence and commentary about the sighting, and a documentation form submitted to the committee.	Kent, Thomas H. (Thomas Hugh), 1934-	Thayer's Gull	Coralville Dam	Coralville Res. Dam, west overlook, Johnson Co. Iowa	Reservoir, just above dam, in water and on swimming beach	The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Other observers include Carl Bendorf, Mike Newlon, and many unidentified other observers. \| Elimination of similar species: Photographs taken at the first encounter with a Celestron 750 mm lens demonstrate the size difference, the bill and head shape difference, the lighter overall color, and the window in the wing. An adult Herring was in the photo with the Thayer's on 7 Nov and imm Herring were photographed on 10 Nov for comparison. \| The original documentation form event lasted from 09:25:00/09:50:00 and 11:00:00/11:20:00 on November 7, 1981 and 07:30:00/08:30:00 on November 8, 1981.	Iowa Ornithologists' Union \| MS 166	11	3
Records Committee review for rare bird sighting of Thayer's Gull at Coralville Dam, 1981	Administrative records Correspondence Field notes	Bird watching Ornithology Ornithology--Societies, etc	1981-11-08	1993-08-26	Rare birds documentation form	Records Committee review for three Thayer's Gulls at Coralville Dam in Johnson County, IA on November 8, 1981. Includes a record review document with votes, correspondence and commentary about the sighting, summary of the review, and a documentation form submitted to the committee.	Moore, Francis L.	Thayer's Gull	Coralville Dam	Coralville Reservoir	Open wate [sic] near small sandy beach near the Dam area, Johnson County	The documentation form by Francis L. Moore is the only one submitted and forms the basis of this record. Other observers include Russell Hays, Tom Kent, Tom Shires, Tom Staudt, and many unidentified other observers. \| Elimination of similar species: Ring-billed Gull and Herring Gull, see above. The Ring-billed Gulls were seen in direct contrast to these three birds and were definitely much smaller birds. The Herring Gulls (first year birds) that I have seen have more of a contrast between the rump and back and upper wing surfaces and none that I remember showed the whitish trailing edge on the tail. [...] The three birds seen were about the size of Herring Gulls in typical first year plumage. They were obviously large gulls of the genus Larus with a noticeably larger size than the Ring-billed Gulls and one Bonaparte's Gull that were next to the three larger birds. [...] There were no Herring Gulls nearby with which to make a comparison of size and coloration. The bills of all three gulls were black did not seem as heavy or bulky as the bill of a Herring Gull. \| The original documentation form event lasted from 08:10:00/09:30:00.	Iowa Ornithologists' Union \| MS 166	11	3
Records Committee review for rare bird sighting of California Gull at Cherry Glen Recreation Area at Saylorville Reservoir, 1986	Administrative records Correspondence Field notes	Bird watching Ornithology Ornithology--Societies, etc	1986-12-07	1996-01-25	Rare birds documentation form	Records Committee review for a California Gull at Cherry Glen Recreation Area at Saylorville Reservoir in Polk County, IA on December 7, 1986. Includes a record review document with votes, correspondence about the bird sighting and a request for re-evaluation of sighting, summary of the review, and a documentation form submitted to the committee.	Dinsmore, Stephen J.	California Gull	Cherry Glen Recreation Area	Saylorville Reservoir, Polk Co. (Cherry Glen Recreation Area)	sitting on ice with other gulls	The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. \| Elimination of similar species: Herring Gull eliminated by larger size, lighter mantle color, lack of black and red spots on bill, and wrong leg color (pink, although a very few Herring Gull show yellowish legs). Ring-billed Gull eliminated by smaller size, lighter mantle color, lack of a black ring on bill, and by yellower leg color. \| The original documentation form event lasted from 13:13:00/14:08:00.	Iowa Ornithologists' Union \| MS 166	11	1
Records Committee review for rare bird sighting of Thayer's Gull at Lake Manawa, 1981	Administrative records Clippings (information artifacts) Correspondence Field notes	Bird watching Ornithology Ornithology--Societies, etc	1981-03-19	1993-08-26	Rare birds documentation form	Records Committee review for two Thayer's Gulls at Lake Manawa in Pottawattamie County, IA on March 19, 1981. Includes a record review document with votes, correspondence and comments about the sighting, an article in Iowa Bird Life, and four documentation forms submitted to the committee.	Silcock, W. Ross	Thayer's Gull	Lake Manawa	Lake Manawa, Pottawattamie County, Iowa.		The documentation form by Ross Silcock is the earliest and the one that forms the basis of this record. Other documentation forms by Thomas H. Kent, Peter C. Petersen, and Robert K. Myers were submitted later. Other observers include Tom Shires, James Kovanda, Sandra Kovanda, Tanya Bray, Babs Padelford, Loren Padelford, B.J. Rose, and four unidentified other observers. \| Elimination of similar species: The above description separates by direct comparison first-year Thayer's and Herring Gulls, the most similar species present. Thayer's may be confused in first year plumage with Kumlien's form of Iceland Gull, but the Thayer's had primaries slightly darker than the mantle (from above), whereas the opposite occurs in Iceland Gull (Lehman). Lehman also notes that some first-year Western Gulls may show translucent primaries from below in certain light, but these observations took place in excellent light at fairly close range. \| The original documentation form event lasted from approximately 09:30:00/11:00:00.	Iowa Ornithologists' Union \| MS 166	11	3
Records Committee review for rare bird sighting of California Gull at Cherry Glen Recreation Area at Saylorville Reservoir, 1997	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1997-12-09	2000-11-24	Rare birds documentation form	Records Committee review for a California Gull at Cherry Glen Recreation Area at Saylorville Reservoir in Polk County, IA on December 9, 1997. Includes a record review document with votes and a documentation form submitted to the committee.	Overton, Michael D.	California Gull	Cherry Glen Recreation Area	Polk co., Saylorville Reservoir, Cherry Glen Recreation Area	On ice along lakeshore of large manmade lake in mixed hardwood forest agricultural cropland.	The documentation form by Michael D. Overton is the only one submitted and forms the basis of this record. Other observers include Eugene Armstrong and Eloise Armstrong. \| Elimination of similar species: Ring-billed Gull, Herring Gull: Immatures of both species were present so direct comparisons were possible. Bill color, shape, and size reletive [sic] to head. Tail and rump color. Wing color and pattern especially mantle, greater coverts, and secondaries. \| The original documentation form event lasted from 10:20:00/10:55:00.	Iowa Ornithologists' Union \| MS 166	11	1
Records Committee review for rare bird sighting of California Gull at Gull Point at West Okoboji Lake, 1997	Administrative records Correspondence Field notes	Bird watching Ornithology Ornithology--Societies, etc	1997-09-07	2000-11-24	Rare birds documentation form	Records Committee review of a California Gull at Gull Point at West Okoboji Lake in Dickinson County, IA on September 7, 1997. Includes a record review document with votes, correspondence from Ken Brock to Thomas Kent, and two copies of a documentation form submitted to the committee.	Schoenewe, Lee A.	California Gull	Gull Point	Gull Point, West Lake Okoboji, Dickinson Co.	Rocky point on natural lake		Iowa Ornithologists' Union \| MS 166	11	1
Records Committee review for rare bird sighting of California Gull at Lost Island Lake, 1996	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1996-11-03	2000-11-22	Rare birds documentation form	Records Committee review for a California Gull at Lost Island Lake in Palo Alto County, IA on November 3, 1996. Includes a record review document with votes and a documentation form submitted to the committee.	Schoenewe, Lee A.	California Gull	Lost Island Lake	N. Shore of Lost Island Lake, Palo Alto, Co.	Shoreline	The documentation form by Lee A. Schoenewe is the only one submitted and forms the basis of this record. \| Elimination of similar species: Herring Gull - bill, eye and leg color Ring-billed Gull - Bill size, tail + wingtips in flight \| The original documentation form event lasted from 10:35:00/10:55:00.	Iowa Ornithologists' Union \| MS 166	11	1
Records Committee review for rare bird sighting of California Gull at Mini-Wakan State Park, 1996	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1996-09-06	2000-11-22	Rare birds documentation form	Records Committee review for a California Gull at Mini-Wakan State Park in Dickinson County, IA on September 6, 1996. Includes a record review document with votes, an article in Iowa Bird Life, and a documentation form submitted to the committee.	Bangma, Jim Johnson, Ann	California Gull	Mini Wakan State Park	Spirit Lake, north end, Dickinson Co., IA	Lakeshore	The documentation form by Jim Bangma and Ann Johnson is the only one submitted and forms the basis of this record. \| Elimination of similar species: Ring-billed is ruled out by the solid gray mantle combined with the extensive molt of the flight feathers. Ring-bills and similar 3 year gulls obtain the gray mantle during a post-juvenal molt. Flight feathers are not molted at this time. Flight feathers are molted after one year, at which time the body of a Ring-bill would be much whiter. Also, the mantle was a much darker shade of gray than any Ring-bill present. Additionally, Ring-billed Gull's bill is proportionally smaller and thinner, with more curve. Herring Gull would be larger. The mantle of a Herring Gull would be paler gray, nearly the same shade as that of the Ring-bills. The bill would be proportionally heavier with a more marked gonydeal angle. Herring Gulls may show a black tipped bill, but the black normally blends into the pink of the base or runs in along the cutting edges of the bill. The bill and legs would be brighter pink. Other similarly sized extralimitals can be ruled out by the mantle color as well as bill pattern and shape. A striking feature of this bird was its leg length. In an effort to better understand this, Bangma paid a visit to the American Museum of Natural History and examined specimens of Herring, Ring-billed and California Gulls. Measurements were made of a representative selection of specimens. The following chart shows the results. [Chart] While there is some overlap between these species, it is interesting to note that the breaking point between California Gull and the other two is very near the ratio of 1.5. While not diagnostic by itself, the length of this bird's tarsus relative to the culmen as estimated by us in the field is indicative of California Gull. \| The original documentation form event lasted from 11:00:00/11:40:00.	Iowa Ornithologists' Union \| MS 166	11	1
Records Committee review for rare bird sighting of California Gull at Runnells Wildlife Area, 1995	Administrative records Clippings (information artifacts) Field notes Photographs	Bird watching Ornithology Ornithology--Societies, etc	1995-09-03	2000-11-20	Rare birds documentation form	Records Committee review for a California Gull at Runnells Wildlife Area in Marion County, IA on September 3, 1995. Includes a record review document with votes, two photographs, an article in Iowa Bird Life, and four documentation forms submitted to the committee.	Dinsmore, Stephen J.	California Gull	Red Rock Wildlife Area	1 mi e. of Swan, Marion Co. (Runnells W.A.)	pool of shallow water	The documentation form by Steve Dinsmore is the earliest and the one that forms the basis of this record. Other documentation forms by Jim Sinclair, Thomas H. Kent, and Jim Fuller were submitted later. \| Elimination of similar species: Ring-billed and Herring gulls are the two most likely species of confusion. Ring-billed Gull never shows this much brown in any plumage, has a dark tail band in immature plumages, has a different wing pattern, and is structurally different from California Gull. Herring Gull is more similar in first-basic plumage, but always shows a pale window on the inner primaries, lacks the double dark bar effect in the innerwing, is larger, and very rarely shows a strongly bicolored bill. \| The original documentation form event lasted from 10:55:00/12:24:00.	Iowa Ornithologists' Union \| MS 166	11	1
Records Committee review for rare bird sighting of California Gull at Saylorville Dam, 1993	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1993-12-06	1995-07-08	Rare birds documentation form	Records Committee review for a California Gull at Saylorville Dam in Polk County, IA on December 6, 1993. Includes a record review document with votes, an article in Iowa Bird Life, and two documentation forms submitted to the committee.	Pinkston, Randall, 1956-	California Gull	Saylorville Dam	Saylorville Reservoir dam, Polk County, Iowa		The documentation form by Randy Pinkston is the earliest and the one that forms the basis of this record. Another documentation form by Stephen J. Dinsmore was submitted later. Another observer includes Susan Grove. \| Elimination of similar species: I am uncomfortable committing to California Gull given the brief and distant view I had, and my limited past experience with the species. My fear is that this was just a small Herring Gull. Herring can be quite variable in overall size, bill size, and in terms of color and shade of the first-winter plumage. Supposedly 10-15% of first-winter Herrings' can have a "dipped-in-ink" bill in the fall (Harrison 1983 or Grant 1986?). \| The original documentation form event lasted from 12:30:00/15:30:00.	Iowa Ornithologists' Union \| MS 166	11	1
Records Committee review for rare bird sighting of California Gull at Carter Lake, 1993	Administrative records Clippings (information artifacts) Field notes Photographs	Bird watching Ornithology Ornithology--Societies, etc	1993-11-21	1995-07-08	Rare birds documentation form	Records Committee review for a California Gull at Carter Lake in Pottawattamie County, IA on November 21, 1993. Includes a record review document with votes, a photograph, an article in Iowa Bird Life, and three documentation forms submitted to the committee.	Bray, Tanya	California Gull	Carter Lake	Carter Lake, Pottawattamie County		The documentation form by Tanya Bray forms the basis of this record. Other documentation forms by Loren and Babs Padelford, and Ross Silcock were submitted. Other observers include Jerry Toll and B.J. Rose. \| Elimination of similar species: Both Ring-billed and Herring Gulls are eliminated by bill coloration, size, slightly darker mantle, and eye color. Western, Lesser-black backed would be darker mantled, different bill coloration. \| The original documentation form event lasted from 10:30:00/10:58:00.	Iowa Ornithologists' Union \| MS 166	11	1
Records Committee review for rare bird sighting of California Gull at Babcock Access at Coralville Reservoir, 1990	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1990-10-27	1993-07-17	Rare birds documentation form	Records Committee review for a California Gull at Babcock Access at Coralville Reservoir in Johnson County, IA on October 27, 1990. Includes a record review document with votes, two articles in Iowa Bird Life, and five documentation forms submitted to the committee.	Kent, Thomas H. (Thomas Hugh), 1934-	California Gull	Babcock Access	Babcock Access, Coralville Reservoir, Johnson County, Iowa	shallow, open area of reservoir	The documentation form by Thomas H. Kent is the earliest and the one that forms the basis of this record. Other documentation forms by Jim Fuller, Randy Pinkston, Carol Thompson, and Carl J. Bendorf were submitted later. Other observers include Timothy Dwyer, John Cordell, James Huntington, Cal Knight, Bernie Knight, and Rick Hollis. \| Elimination of similar species: First-year Ring-billed Gulls were all in first winter plumage with gray mantle and were much lighter overall. The only other species considered is juvenile Herring Gull. The size is small for Herring Gull. The elongated appearance and short legs fit California Gull. Most young Herrings that I see in early fall have mostly dark bills that are larger than that of this bird. The double inner wing bar and lighter tertial tips fit California Gull. The overall relatively uniform and relatively light brown color without windows in the inner primaries also made this bird look different from Herring Gull. \| The original documentation form event lasted from 15:15:00/16:55:00 on October 27, 1990 and from 19:10:00/22:30:00 and 15:00:00/16:00:00 on October 28, 1990.	Iowa Ornithologists' Union \| MS 166	11	1
Records Committee review for rare bird sighting of California Gull at Oak Grove Beach at Saylorville Reservoir, 1990	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1990-09-08	1993-07-17	Rare birds documentation form	Records Committee review for a California Gull at Oak Grove Beach at Saylorville Reservoir in Polk County, IA on September 8, 1990. Includes a record review document with votes and the article California Gull at Saylorville Reservoir in Iowa Bird Life 61:20 by Stephen Dinsmore reviewed by the committee.	Dinsmore, Stephen J.	California Gull	Oak Grove Recreation Area	[...] Oak Grove Beach Recreation Area at Saylorville Reservoir, Polk County.		The article by Stephen J. Dinsmore forms the basis of this record. \| Elimination of similar species: [...]The bird was similar in size to the largest Ring-billed Gulls, but slightly larger than others. I approached closer and noted that, when compared to a Ring-billed Gull, the bird had duller yellow legs, a stouter bill with black and red spots near the tip of the lower mandible, and a darker gray mantle. [...] The bird was slightly larger than most of the Ring-billed Gulls, although one or two of the biggest Ring-billed Gulls were as large as the bird I was studying. Proportionately, the bird was heavier and larger-headed than a Ring-billed Gull. [...] I estimated the mantle color to be about midway between those of Ring-billed Gull and a Lesser Black-backed Gull. [...] The bill was heavier than the bill of a Ring-billed Gull and had a distinct gonys. The legs were pale gray-green, unlike the bright yellow legs of a Ring-billed Gull. Leg length appeared similar to a Ring-billed Gull. \| The original documentation form event lasted from 07:45:00/09:27:00.	Iowa Ornithologists' Union \| MS 166	11	1
Records Committee review for rare bird sighting of California Gull at Credit Island, 1989	Administrative records Clippings (information artifacts) Correspondence Field notes	Bird watching Ornithology Ornithology--Societies, etc	1989-11-23	1993-07-21	Rare birds documentation form	Records Committee review for a California Gull at Credit Island in Scott County, IA on November 23, 1989. Includes a record review document with votes, an article in Iowa Bird Life, correspondence about the sighting from Louise Augustine to Carl Bendorf, and three documentation forms submitted to the committee.	Augustine, Louise	California Gull	Credit Island	Credit Island - Davenport, Iowa - Scott County	This is an unfamiliar Area for me - I have never birded there before - The Place Credit Island - Backwater of Mississippi River - There was some ICE and open water - Many Gulls were in this Backwater area - on ice and in water. Probably around 1,500 Gulls -	The documentation form by Louise Augustine forms the basis of this record. Other documentation forms by Peter C. Petersen and Jim Fuller were submitted. Other observers include Randy Pinkston, Mary Lou Petersen, Jerome Augustine, David Augustine, and Julie Augustine. \| Elimination of similar species: Herring Gull - darker mantle - Dark eye - Leg Color - ashy-green gray not Pink - smaller size - slimmer build Ring-billed Gull - mantle too dark - dark eye - Bill had only a spot Leg Color not yellow - This bird larger than Ring-billed gulls - \| The original documentation form event lasted from 12:00:00/13:00:00.	Iowa Ornithologists' Union \| MS 166	11	1