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

Rare bird documentation form for Scarlet Tanager north of Iowa City, 1990	Field notes	Birds--Behavior Birds--Identification Ornithology Rare birds	1990-11-11	N/A	Rare birds documentation form	Rare bird documentation form for a Scarlet Tanager north of Iowa City in Johnson County, IA on November 11, 1990.	Fuller, James L	Scarlet Tanager	Iowa City	My backyard north of Iowa City	Suburban Yard	The documentation form by Jim Fuller is the only one submitted and forms the basis of this record. Other observers include Thomas Kent. \| Elimination of similar species: Only Western Tanager has dark wings, but it has wingbars. \| The original documentation form event lasted from 15:10:00/15:50:00.	Iowa Ornithologists' Union \| MS 166	35	45
Rare bird documentation form for Baltimore Oriole at Cedar Rapids, 1990	Field notes	Bird feeders Birds--Behavior Birds--Identification Ornithology Rare birds	1990-12-15	1990-12-31	Rare birds documentation form	Rare bird documentation form for a Baltimore Oriole at Cedar Rapids in Linn County, IA on December 15, 1990.	Wickham, Peter P.	Baltimore Oriole	Cedar Rapids	Bird feeder, 100 Thompson Drive S.E., Cedar Rapids	Suburban area, with condominiums, private homes, lawns & trees	The documentation form by Pete Wickham is the only one submitted and forms the basis of this record. Other observers include Jim Durbin and three unidentified people with other bird feeders. \| Elimination of similar species: There are no similar species that I can think of. It wasn't a Bullock's type, which would have orange on the face and a big white wing patch.	Iowa Ornithologists' Union \| MS 166	35	79
Records Committee review for rare bird sighting for Western Tanager at Spirit Lake, 1996	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1996-05-23	2000-11-22	Rare birds documentation form	Records Committee review for a Western Tanager at Spirit Lake in Dickinson County, IA on May 23, 1996. Includes a record review document with votes, an article in Iowa Bird Life, and a documentation form submitted to the committee.	Thelen, Ed	Western Tanager	Spirit Lake	My backyard birdbath - East edge of Spirit Lake	Suburban - edge of farmland	The documentation form by Ed Thelen is the only one submitted and forms the basis of this record. \| Elimination of similar species: Female oriole - size, shape and color of beak, length of tail and color of chin. Imm. Scarlet tanager - According to Master Guide to birding Vol 3 p. 196, juvenal [sic] Scarlet tanagers resemble the female but are more variable and have bright yellow wing bars. Also according to National Geographic Bird Guide it states that the immature scarlet tanager has faint wing bars. I don't think it was an immature scarlet tanager because this time of year the bird is not in juvenal [sic] plumage and the bird I saw had prominent and strong wing bars. Also the bird I saw had a very light colored rump and also its nape was a shade lighter than its back giving the birds upper part the light-dark light sequence for its nape-back-rump. This is a characteristic of the Western Tanager. This is what Bent (1958) p 472 has to say about the plumages of the 1st year male western tanager. "There is considerable variation among individuals, these one-year old males are as a whole somewhat less brilliant than the adults. The black of the upper part is duller and more or less intermixed with greenish. The red on the head paler, less intense and more restricted in area; and the yellows decidedly duller and less brilliant." \| The original documentation form event lasted from 19:15:00/19:18:00.	Iowa Ornithologists' Union \| MS 166	13	29
Rare bird documentation form for Acadian Flycatcher at Croton Unit in Shimek State Forest, 1985	Field notes	Birds--Identification Ornithology Rare birds	1985-05-03	N/A	Rare birds documentation form	Rare bird documentation form for three Acadian Flycatchers at Croton Unit in Shimek State Forest in Lee County, IA on May 3, 1985.	Cecil, Robert I.	Acadian Flycatcher	Shimek State Forest Wildlife Management Area - Croton Unit	Croton Unit, Shimek Forest, 2 1/2 miles west of Argyle, Lee County, Iowa	Streamside woods and thickets	The documentation form by Robert I. Cecil is the only one submitted and forms the basis of this record. \| Elimination of similar species: Visually similar or identical to other empidonax. Others eliminated by voice (others do not give accented 'pit-see!') Habitat perfect for Acadian, although this would not eliminate all others. \| The original documentation form event lasted from 08:15:00/08:30:00.	Iowa Ornithologists' Union \| MS 166	34	66
Rare bird documentation form for Hermit Thrush at Sundown Ski Area near Asbury, 1981	Field notes	Birds--Behavior Birds--Identification Ornithology Ornithology--Societies, etc Rare birds	1981-12-26	1981-12-27	Rare birds documentation form	Rare bird documentation form for a Hermit Thrush Sundown Ski Area near Asbury in Dubuque County, IA on December 26, 1981.	Miller, John Carl	Hermit Thrush	Asbury	Along the Heritage Trail across the crick from the longest ski run of Sundown Ski Area.	Streamside cover consisting of: understory (shrubs and bushes). Young tree growth and some mature trees (all deciduous). Cedars nearby.	The documentation form by John Carl Miller is the only one submitted and forms the basis of this record. Other observers include Brian Larson. \| Elimination of similar species: smaller than a robin larger than a sparrow \| The original documentation form event occurred from 08:30:00/08:40:00.	Iowa Ornithologists' Union \| MS 166	35	9
Rare bird documentation form for Golden Eagle at White Pine Hollow, 1989	Field notes	Birds--Identification Ornithology Rare birds	1989-10-25	1989-11-02	Rare birds documentation form	Rare bird documentation form for a Golden Eagle at White Pine Hollow in Dubuque County, IA on October 25, 1989.	Rouw, Mark	Golden Eagle	White Pine Hollow State Park	White Pine Hollow Dubuque County Iowa	Stream valley bordered by steep bluffs in woodland	The documentation form by Mark D. Rouw is the only one submitted and forms the basis of this record. \| Elimination of similar species: Immature bald eagle was eliminated because of this birds distinctive white patches and shorter beak. \| The original documentation form event lasted from 12:00:00/12:00:30.	Iowa Ornithologists' Union \| MS 166	33	31
Rare bird documentation form for American Pipit at Lake Ahquabi State Park, 1999	Field notes	Birds--Behavior Birds--Identification Ornithology Rare birds Wildlife conservation	1999-01-01	1999-01-03	Rare birds documentation form	Rare bird documentation form for an American Pipit at Lake Ahquabi State Park in Warren County, IA on January 1, 1999.	Sinclair, Jim	American Pipit	Lake Ahquabi State Park	Lake Ahquabi St. Pk.	stream bed in bottomland forest	The documentation form by Jim Sinclair is the only one submitted and forms the basis of this record. \| Elimination of similar species: The long bill eliminated any kind of sparrow and the white outer tail feathers eliminated water thrush species. \| The original documentation form event lasted from 11:15:00/11:20:00.	Iowa Ornithologists' Union \| MS 166	35	15
Records Committee review for rare bird sighting of Sabine's Gull at the riverfront of Davenport, 1991	Administrative records Clippings (information artifacts) Field notes Photographs	Bird watching Ornithology Ornithology--Societies, etc	1991-10-13	1994-02-27	Rare birds documentation form	Records Committee review for two Sabine's Gull at the riverfront of Davenport in Scott County, IA on October 13, 1991. Includes a record review document with votes, an article in Meadowlark, excerpts from American Birds, article and front page from Iowa Bird Life, seven photographs, and seven documentation forms submitted to the committee.	Peiser, Richard H.	Sabine's Gull	Davenport	Riverfront, Davenport, IA	Stone embankment + river	The documentation form by Richard H. Peiser forms the basis of this record. Other documentation forms by Thomas H. Kent, Reid Allen, Peter C. Petersen, James Fuller, Randall Pinkston, and Ann Johnson were submitted. Other observers include John King, Dick Tetrault, Tim Schantz, Brian Blevins, Ann Barker, Jim Scheib, Mary Lou Peterson, Babs Padelford, Loren Padelford, Pam Allen, and many unidentified other observers. \| Elimination of similar species: The upperwing pattern is so striking as to eliminate other gull species, even in the Juvenile Black hood of adult, slight fork of tail + black band on imm. tail band helped. Yellow tip of bill on adult clincher \| The original documentation form event lasted from 14:00:00/18:00:00.	Iowa Ornithologists' Union \| MS 166	11	9
Rare bird documentation form for Red-shouldered Hawk at Clear Creek Township in Jasper County, 1984	Field notes	Birds--Identification Ornithology Rare birds	1984-01-22	1984-02-05	Rare birds documentation form	Rare bird documentation form for a Red-shouldered Hawk at Clear Creek Township in Jasper County, IA on January 22, 1984.	Zaletel, Hank	Red-shouldered Hawk	Clear Creek Township	Jasper County, Clear Creek Twnshp T8IN-R21W Section 13 SE	Steep hills, flat valleys, wooded slopes	The documentation form by Hank Zaletel is the only one submitted and forms the basis of this record. \| Elimination of similar species: Red tail does not have barred tail, does not have orange brown breast as well as underside wing linings. Broad wing has fewer bars on tail, does not have orange brown underside wing linings neither have dark, white spacing on top side secondaries. \| The original documentation form event lasted from 13:30:00/13:45:00.	Iowa Ornithologists' Union \| MS 166	33	26
Rare bird documentation form for Northern Goshawk at Hanover Township in Allamakee County, 1982	Field notes	Birds--Identification Ornithology Rare birds	1982-11-21	1982-11-22	Rare birds documentation form	Rare bird documentation form for a Northern Goshawk at Hanover Township in Allamakee County, IA on November 21, 1982.	Robinson, John C., 1959-	Northern Goshawk	Hanover Township	Iowa; Allamakee County, Hanover Twsp., Sect. 8	Steep flood plain bluffs with mixed (cedar and deciduous) forest vegetation	The documentation form by John C. Robinson is the only one submitted and forms the basis of this record. Other observers include Carol Newlon and Hank Zaletel. \| Elimination of similar species: Cooper's Hawk: Although size overlap is possible, this species lacks the blue-gray underparts and bold facial patterns mentioned above. \| The original documentation form event lasted from 08:45:00/08:46:00.	Iowa Ornithologists' Union \| MS 166	33	25
Rare bird documentation form for Northern Goshawk at Big Creek State Park, 1982	Field notes	Birds--Identification Ornithology Rare birds	1982-02-15	N/A	Rare birds documentation form	Rare bird documentation form for a Northern Goshawk at Big Creek State Park in Polk County, IA on February 15, 1982.	Zaletel, Hank	Northern Goshawk	Big Creek State Park	Highway 415 North of Polk City at NW 100 ST Big Creek State Park	State park, open grassland, trees on edge - flew to wooded edge	The documentation form by Hank Zaletel is the only one submitted and forms the basis of this record. Other observers include Paul Martsching. \| Elimination of similar species: Northern Harrier - no white rump patch + this bird had white eye brow line. Coopers Hawk - vertical streaks more widely spaced than coopers horizontal streaks - underside appeared white in flight. This bird had white eye brow line and was much larger in size. \| The original documentation form event occurred around 14:30:00.	Iowa Ornithologists' Union \| MS 166	33	25
Records Committee review for rare bird sighting of Least Tern at Cone Marsh, 1984	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1984-05-19	1993-09-01	Rare birds documentation form	Records Committee review for a Least Tern at Cone Marsh in Louisa County, IA on May 19, 1984. Includes a record review document with votes, a summary of a review, and two documentation forms submitted to the committee.	Bendorf, Carl J.	Least Tern	Cone Marsh Wildlife Management Area	Cone Marsh	State owned marsh of about 700 Acres.	The documentation form by Carl J. Bendorf forms the basis of this record. Another documentation form by Thomas J. Staudt was submitted. \| Elimination of similar species: The obvious possibilities are both Common or Forsters' Terns. At the very most, this bird was perhaps half the size of the gulls. This would put the body length in the general range of 8" long with a wingspread of 24" (according to size of Ring bills in the Natl. Geo. Guide) The Natl. Geo. Guide gives the general size range of Least Tern as 9" long with a wingspread of 20 ". The sizes of the other terns are given as Common L 14 1/2', W 30", and Forsters' L 14 1/2, W=31". Thus on size alone, Least Tern seems to be the only reasonable choice. The short but deeply forked tail also indicates Least Tern. Harrison's SEABIRDS says, on page 182, "Size and hurried flight,..., usually sufficient to clinch identification in northern hemisphere". The flight of this bird was much quicker and fluttery compared to my experience with the slower, deeper, and more deliberate flight of Common and Forster's Terns. \| The original documentation form event lasted from 09:30:00/09:32:00.	Iowa Ornithologists' Union \| MS 166	12	3
Records Committee review for rare bird sighting of Sabine's Gull north of Farragut, 1989	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1989-09-24	1993-08-06	Rare birds documentation form	Records Committee review for a Sabine's Gull north of Farragut in Fremont County, IA on September 24, 1989. Includes a record review document with votes and a documentation form submitted to the committee.	Braley, Jean B.	Sabine's Gull	Farragut	Hiway #2, North of Farragut, IA c 1 mile E of Co. Rd. M16 to 1 mile W.	State highway - Nishna Botna River parallel to road 1/8 to 1/4 mile so[...]	The documentation form by Jean B. Braley is the only one submitted and forms the basis of this record. Another observer includes Francis M. Braley. \| Elimination of similar species: Felt sure it was not a familiar species (to me) although I thought about Bl Kittiwake (R. Tridacryla) but wings too black + white without black band to body; smaller size; no black band across neck \| The original documentation form event lasted from 09:20:00/09:27:00.	Iowa Ornithologists' Union \| MS 166	11	9
Rare bird documentation form for Lesser Black-backed Gull in the Cedar River at Cedar Rapids, 1993	Field notes	Birds--Identification Ornithology Rare birds	1993-12-18	1994-01-06	Rare birds documentation form	Rare bird documentation form for a Lesser Black-backed Gull in the Cedar River at Cedar Rapids in Linn County, IA on December 18, 1993.	Wickham, Peter P.	Lesser Black-backed Gull	Cedar Rapids	Cedar River, on sandbar across from Cargill plant, Cedar Rapids, IA	Standing, walking around on sandbar	The documentation form by Peter Wickham is the only one submitted and forms the basis of this record. \| Elimination of similar species: The dark mantle, yet whitish head, neck, and underparts identified it as an adult gull, and immediately eliminated Herring, Ring-billed and other gray or whitish-backed gulls. It was too small for Great Black-backed Gull, which has flesh-colored legs anyway, or Slaty-backed Gull, which has pinkish legs. The mantle wasn't truly black, as a Great Black-backed mantle would be. \| The original documentation form event lasted from 14:15:00/14:25:00.	Iowa Ornithologists' Union \| MS 166	34	36
Rare bird documentation form for Marbled Godwit at Willow Slough, 1981	Field notes	Birds--Identification Ornithology Rare birds	1981-05-19	1981-05-24	Rare birds documentation form	Rare bird documentation form for a Mabled Godwit at Willow Slough in northeast Mills County, IA on May 19, 1981.	Wilson, Barbara L.	Marbled Godwit	Willow Slough State Game Management Area	Willow Slough, N.E. Mills County, Iowa	Standing in shallow water in drying slough.	The documentation form by Barbara L. Wilson is the only one submitted and forms the basis of this record. \| Elimination of similar species: Hudsonian Godwit is similar, but has contrasting rump + wing stripe. \| The original documentation form event lasted from 06:00:00/06:05:00.	Iowa Ornithologists' Union \| MS 166	34	14
Rare bird documentation form for Snowy Egret at Lake Manawa, 1978	Field notes	Birds--Identification Ornithology Rare birds	1978-04-23	1978-04-28	Rare birds documentation form	Rare bird documentation form with handwritten annotations for a Snowy Egret at Lake Manawa in Pottawattamie County, IA on April 23, 1978.	Brown, Larry D.	Snowy Egret	Lake Manawa	Lake Manawa, southeast quarter of lake	Standing along shore of lake in shallow water near a muskrat den. Lake shore environment with some reeds and cattails along shore plus other vegetation growing in shallow water where bird was observed.	The documentation form by Larry D. Brown is the only one submitted and forms the basis of this record. Other observers include his wife and two other birders. \| Elimination of similar species: Approximately 10-15 feet to the west of the Snowy stood an American Egret which was identified by its yellow bill and much larger size. By comparing the field marks and size of both, they could both be identified. \| The original documentation form event lasted from 18:00:00/18:15:00.	Iowa Ornithologists' Union \| MS 166	32	19
Records Committee review for rare bird sighting for Great-tailed Grackle at Ames, 1987	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1987-12-19	1993-09-07	Rare birds documentation form	Records Committee review for a Great-tailed Grackle at Ames in Story County, IA on December 19, 1987. Includes a record review document with votes and two documentation forms submitted to the committee.	Niyo, Kayleen	Great-tailed Grackle	Ames	Max Bailey Farm on Dayton Rd. N.E. of Ames	Spruce Windbreak	The documentation form by Kay Niyo is the earliest and the one that forms the basis of this record. Another documentation form by John Richard was submitted later. Another observer was Judy Shearer. \| Elimination of similar species: Common grackle - this bird was much larger with a much longer tail. Common crow - this bird was not quite as large, had a much longer tail than a crow, bill was long & grackle shaped, not as a crow, & body stance was like a grackle not a crow. Ani - bill and body shape & carriage was grackle-like. \| The original documentation form event occurred around 16:00:00.	Iowa Ornithologists' Union \| MS 166	14	9
Records Committee review for rare bird sighting for Gray Jay at Mason City, 1976	Administrative records Clippings (information artifacts) Correspondence Field notes	Bird watching Ornithology Ornithology--Societies, etc	1976-11-01	1994-02-04	Rare birds documentation form	Records Committee review for a Gray Jay at Mason City in Cerro Gordo County, IA in early November 1976. Includes a record review document with votes, an article in Iowa Bird Life as well as a letter and documentation form submitted to the committee.	Tanner, Fern L.	Gray Jay	Mason City	415 N. Jeff Mason City Iowa	spotted in Spruce tree several times - also once on small bush.	The documentation form by Fern L. Tanner is the only one submitted and forms the basis of this record. Other observers include Marvin Tanner, Luella Olsen, and Albert Ewers. \| Elimination of similar species: [...] Looked larger than Blue Jay that was 18 in. away at time. Little shorter beak than Blue Jay. \| The original documentation form event lasted from 15:00:00/15:15:00.	Iowa Ornithologists' Union \| MS 166	12	41
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
Rare bird documentation form for Black-legged Kittiwake at Coralville Reservoir, 1996	Field notes	Birds--Identification Ornithology Rare birds	1996-11-25	N/A	Rare birds documentation form	Rare bird documentation form for a Black-legged Kittiwake at Coralville Reservoir in Johnson County, IA on November 25, 1996.	Edwards, Chris	Black-legged Kittiwake	Coralville Lake	Coralville Reservoir, Johnson Co.	Spillway below dam	The documentation form by Chris Edwards is the only one submitted and forms the basis of this record. Other observers include Ken Lowder and Tom Kent. \| Elimination of similar species: The pattern of the upperparts is very distinctive. The black 'collar' eliminates similar species. \| The original documentation form event lasted from 12:35:00/12:40:00.	Iowa Ornithologists' Union \| MS 166	34	40
Records Committee review for rare bird sighting of Lesser Black-backed at Red Rock Reservoir Dam, 1994	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1994-12-11	1996-04-25	Rare birds documentation form	Records Committee review for a Lesser Black-backed Gull at Red Rock Reservoir Dam in Marion County, IA on December 11, 1994. Includes a record review document with votes and three documentation forms submitted to the committee.	Dinsmore, Stephen J.	Lesser Black-backed Gull	Red Rock Dam	below Red Rock Reservoir dam, Marion Co., IA	spillway below dam		Iowa Ornithologists' Union \| MS 166	11	5
Records Committee review for rare bird sighting of Laughing Gull at Red Rock Dam, 1992	Administrative records Field notes Photographs	Bird watching Ornithology Ornithology--Societies, etc	1992-07-21	1994-10-18	Rare birds documentation form	Records Committee review for a Laughing Gull at Red Rock Dam in Marion County, IA on July 21, 1992. Includes a record review document with votes, two photographs, and five documentation forms submitted to the committee.	Kent, Thomas H. (Thomas Hugh), 1934-	Laughing Gull	Red Rock Dam	Red Rock Reservoir, Marion Co., IA	spillway and river below dam	The documentation form by Thomas H. Kent is the earliest and the one that forms the basis of this record. Other documentation forms by Ann Johnson, Jim Fuller, Pam Allen, and Mark Proescholdt were submitted later. Other observers include Russ Widner, David Arbour, Reid Allen, Tim Schantz, Jane Fuller, and many unidentified other observers. \| Elimination of similar species: The bird was smaller and more brown than the ring-bills of the year. The other features noted above make the juvenile Laughing Gull an easy identification. \| The original documentation form event lasted from 07:45:00/08:00:00.	Iowa Ornithologists' Union \| MS 166	10	18
Records Committee review for rare bird sighting of Mew Gull at Red Rock Reservoir Dam, 1994	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1994-12-11	1996-04-25	Rare birds documentation form	Records Committee review of a Mew Gull at Red Rock Reservoir Dam in Marion County, IA on December 11, 1994. Includes a record review document with votes, an article in Iowa Bird Life, and four documentation forms submitted to the committee.	Dinsmore, Stephen J.	Mew Gull	Red Rock Dam	below Red Rock Reservoir dam, Marion Co., IA	spillway	The documentation form by Steve Dinsmore forms the basis of this record. Other documentation forms by Jim Sinclair, Ray Cummins, and Thomas H. Kent were submitted. Other observers include Tim Schantz, Jim Fuller, and many unidentified observers. \| Elimination of similar species: The only species with which this bird could be confused is Ring-billed Gull. The tail and wing patterns, generally darker coloration, large eye, and smaller bill all eliminate first-winter Ring-billed Gull. Identification to subspecies was based on tail pattern and more extensive dark color on head and underparts. \| The original documentation form event lasted from 07:20:00/08:30:00.	Iowa Ornithologists' Union \| MS 166	10	23
Records Committee review for rare bird sightings of Sage Thrasher at Cedar River Park in Waterloo, 1985	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1985-09-23	1993-09-03	Rare birds documentation form	Records Committee review for a Sage Thrasher at Cedar River Park in Waterloo in Black Hawk County, IA on September 23, 1985. Includes one record review document with votes, an Iowa Bird Life article and cover page, and nine documentation forms submitted to the committee.	Moore, Francis L.	Sage Thrasher	Cedar River Park	East end of Cedar River Park, at The Boating Center, Waterloo, IA	Spends most of its time in a Hawthorne tree and near the building at The Boating Center	The documentation form by Francis L. Moore forms the basis of this record. Other documentation forms by Robert K. Myers, Beth Proescholdt, Mark Proescholdt, Carl J. Bendorf, Steve Dinsmore, Jim Fuller, Thomas J. Staudt, and Thomas H. Kent were submitted later. Other observers include Russell Hays, Tom Stone, Jr., Tom Stone, Sr., Cal Knight, Bernie Knight, Hank Zaletel, John Hoogerheide, Eugene Armstrong, Eloise Armstrong, and many unidentified observers. \| Elimination of similar species: No other species is of this size and coloration to confuse with this species. \| The original documentation form sighting is from 17:25:00 to 18:05:00	Iowa Ornithologists' Union \| MS 166	13	10
Records Committee review for rare bird sighting of Great Black-backed Gull at Sandpiper Beach at Saylorville Reservoir, 1988	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1988-12-10	1993-08-04	Rare birds documentation form	Records Committee review for a Great Black-backed Gull at Sandpiper Beach at Saylorville Reservoir in Polk County, IA on December 10, 1988. Includes a record review document with votes and a documentation form submitted to the committee.	Engebretsen, Bery	Great Black-backed Gull	Sandpiper Recreation Area	Saylorville	Specific: Big end of Saylorville Specific: off Sandpiper Beach, half in ice, half open	The documentation form by Bery Engebretsen is the only one submitted and forms the basis of this record. Another observer includes Eugene Armstrong. \| Elimination of similar species: Larger than Herring gull would seem to eliminate Lesser BB, also, only one dark secondary band on wing white head + large size unlike immature Herring Gull. \| The original documentation form event lasted from approximately 11:00:00/11:15:00.	Iowa Ornithologists' Union \| MS 166	11	8