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 Lesser Black-backed at Red Rock Lake, 1994	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1994-10-29	1996-04-25	Rare birds documentation form	Records Committee review for a Lesser Black-backed Gull at Red Rock Lake in Marion County, IA on October 29, 1994. Includes a record review document with votes and a documentation form submitted to the committee.	Armstrong, Eugene	Lesser Black-backed Gull	Lake Red Rock	Red Rock Lake	Lake	The documentation form by Eugene Armstrong is the only one submitted and forms the basis of this record. Other observers include Eloise Armstrong, Cal Knight, Bernie Knight, Maridel Jackson, and Barb Bettis. \| Elimination of similar species: Ringbills never have a scaly pattern over the back or an all black bill. Smaller than a herring gull. Herrings only have a black bill when they are in brown juvenile plumage. 1st summer herring has a 2/3rds pink bill. \| The original documentation form event lasted from 11:15:00/11:35:00.	Iowa Ornithologists' Union \| MS 166	11	5
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
Rare bird documentation form for Thayer's Gull at Red Rock Dam, 1995	Field notes	Birds--Identification Ornithology Rare birds	1995-01-01	1995-03-01	Rare birds documentation form	Rare bird documentation form for a Thayer's Gull at Red Rock Dam in Marion County, IA on January 1, 1995.	Johnson, Ann	Thayer's Gull	Red Rock Dam	Red Rock Dam, Marion Co., IA	gravel bar below dam	The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. \| Elimination of similar species: Structure, darker mantle, dark eye, and gray primaries eliminate Herring Gull. Other gulls of intermediate size - Lesser Black-backed eliminated by relative gray of mantle, leg color, and primary color. California eliminated by leg color, primary color, and lack of black marking on bill. Iceland eliminated by dark mantle color \| The original documentation form event lasted from 10:15:00/10:30:00.	Iowa Ornithologists' Union \| MS 166	34	35
Records Committee review for rare bird sighting for Thayer's Gull at Red Rock Dam, 1989	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1989-11-08	1993-08-06	Rare birds documentation form	Records Committee review for a Thayer's Gull at Red Rock Dam in Marion County, IA on November 8, 1989. Includes a record review document with votes and a documentation form submitted to the committee.	Proescholdt, Beth	Thayer's Gull	Red Rock Dam	Red Rock	below dam	The documentation form by Beth Proescholdt is the only one submitted and forms the basis of this record. Another observer includes Mark Proescholdt. \| Elimination of similar species: It was lighter + more evenly colored than a Herring Gull, larger than Ring-billed, too dark for an Iceland too small for a Glaucous. \| The original documentation form event lasted from 08:50:00/09:00:00.	Iowa Ornithologists' Union \| MS 166	11	3
Rare bird documentation form for Black-throated Green Warbler at Redbird Farms Wildlife Area, 1999	Field notes	Birds--Behavior Birds--Identification Birdsongs Ornithology Rare birds	1999-04-01	1999-04-02	Rare birds documentation form	Rare bird documentation form for a Black-throated Green Warbler at Redbird Farms Wildlife Area in Johnson County, IA on April 1, 1999.	Dooley, Michael C.	Black-throated Green Warbler	Redbird Farms Wildlife Area	Red Bird Farms Natural Area, Johnson County.	Deciduous woods, no foliage	The documentation form by Mike Dooley is the only one submitted and forms the basis of this record. \| Elimination of similar species: Hermit Warbler unlikely and lacks eye line. \| The original documentation form event lasted from approximately 10:00:00/10:15:00.	Iowa Ornithologists' Union \| MS 166	35	27
Records Committee review for rare bird sighting of Red Knot at Island View Park at Rathbun Reservoir, 1995	Administrative records Field notes Photographs	Bird watching Ornithology Ornithology--Societies, etc	1995-08-14	2000-11-20	Rare birds documentation form	Records Committee review for a Red Knot at Island View Park at Rathbun Reservoir in Appanoose County, IA on August 14, 1995. Includes a record review document with votes, two photos, and two documentation forms submitted to the committee.	Kent, Thomas H. (Thomas Hugh), 1934-	Red Knot	Island View Park	Rathbun Reservoir, Island View Area, Appanoose Co., IA	sandy to mud edge of peninsula on large reservoir.	The documentation form by Thomas H. Kent is the earliest and the one that forms the basis of this record. Another documentation form by Jim Fuller was submitted later. Other observers include Tom Johnson and Mary Montgomery. \| Elimination of similar species: The size was too large for a peep and bit larger than Sanderlings. Dunlin and Curlew Sandpiper would have a longer, drooped bill, and be smaller with shorter black legs. \| The original documentation form event lasted from 06:25:00/07:00:00.	Iowa Ornithologists' Union \| MS 166	10	1
Records Committee review for rare bird sighting of Red Phalarope at Rathbun Reservoir, 1992	Administrative records Clippings (information artifacts) Field notes Photographs	Bird watching Ornithology Ornithology--Societies, etc	1992-11-08	1994-10-18	Rare birds documentation form	Records Committee review for a Red Phalarope at Rathbun Reservoir in Appanoose County, IA on November 8, 1992. Includes a record review document with votes, two photos, an article in Iowa Bird Life, and three documentation forms submitted to the committee.	Kent, Thomas H. (Thomas Hugh), 1934-	Red Phalarope	Rathbun Lake	Rathbun Reservoir, Appanoose Co., IA	On the inner edge of a peninsula in a ditch of a recently flooded roadway.	The documentation form by Thomas H. Kent is the earliest and the one that forms the basis of this record. Other documentation forms by Raymond Cummins and Jim Fuller were submitted later. Other observers include Tom Johnson. \| Elimination of similar species: The uniform forewing and back and the thickness of the bill separate this species from Red-necked Phalarope. \| The original documentation form event lasted from 07:55:00/08:00:00, 08:15:00/08:20:00, and 11:30:00.	Iowa Ornithologists' Union \| MS 166	10	12
Records Committee review for rare bird sighting of Black-legged Kittiwake in Rathbun Reservoir Dam, 1986	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1986-12-20	1993-09-07	Rare birds documentation form	Records Committee review for a Black-legged Kittiwake in Rathbun Reservoir Dam in Appanoose County, IA on December 20, 1986. Includes a record review document with votes, summary of the review, and a documentation form submitted to the committee.	Dinsmore, Stephen J.	Black-legged Kittiwake	Rathbun Dam	Rathbun Reservoir, Appanoose Co.-above dam	feeding with Ring-billed Gulls near open water and resting on the ice	The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. Other observers include two unidentified observers. \| Elimination of similar species: The wing pattern, dark bill and legs, tail pattern, and size eliminates all other gulls. \| The original documentation form event lasted from 16:06:00/16:22:00.	Iowa Ornithologists' Union \| MS 166	11	10
Records Committee review for rare bird sighting of Thayer's Gull at Island View Park at Rathbun Reservoir, 1986	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1986-12-20	1993-09-07	Rare birds documentation form	Records Committee review for three Thayer's Gulls at Island View Park at Rathbun Reservoir in Appanoose County, IA on December 20, 1986. Includes a record review document with votes, a summary of the review, and two documentation forms submitted to the committee.	Dinsmore, Stephen J.	Thayer's Gull	Island View Park	Rathbun Reservoir, Appanoose Co. (Island View East and West Areas)	sitting on ice and feeding on open water with other gulls	The documentation form by Steve Dinsmore forms the basis of this record. Another documentation form by Ray Cummins was submitted. Another observer includes Randy Strough. \| Elimination of similar species: The first-year birds were separated from first-year Iceland Gull by the distinct tail band and the darker primaries and from first-year Herring Gull by head shape, bill size, more uniform body color, and the silvery-white underwing. The adult bird was separated from an adult Iceland Gull by size, bill shape, and more black (still not too much, though) in the wingtips and from an adult Herring Gull by head shape, bill size, and paler wingtips. \| The original documentation form event lasted from 10:05:00/10:30:00 and 13:30:00/13:54:00.	Iowa Ornithologists' Union \| MS 166	11	3
Rare bird documentation form for Thayer's Gull at Island View at Rathbun Reservoir, 1986	Field notes	Birds--Identification Ornithology Rare birds	1986-12-20	1986-12-23	Rare birds documentation form	Rare bird documentation form for three Thayer's Gulls at Island View Park at Rathbun Reservoir in Appanoose County, IA on December 20, 1986.	Dinsmore, Stephen J.	Thayer's Gull	Island View Park	Rathbun Reservoir, Appanoose Co. (Island View East and West Areas)	sitting on ice and feeding on open water with other gulls	The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. Other observers include Ray Cummins. \| Elimination of similar species: The first-year birds were separated from first-year Iceland Gull by the distinct tail band and the darker primaries and from first-year Herring Gull by head shape, bill size, more uniform body color, and the silvery-white underwing. The adult bird was separated from an adult Iceland Gull by size, bill shape, and more black (still not too much, though) in the wingtips and from an adult Herring Gull by head shape, bill size, and paler wingtips. \| The original documentation form event lasted from 10:05:00/10:30:00 and 13:30:00/13:54:00.	Iowa Ornithologists' Union \| MS 166	34	35
Records Committee review for rare bird sighting of Red Knot at Island View Park at Rathbun Lake, 1992	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1992-10-08	1994-10-18	Rare birds documentation form	Records Committee review for three Red Knots at Island View Park at Rathbun Lake in Appanoose County, IA on October 8, 1992. Includes a record review document with votes, an article in Iowa Bird Life, and three documentation forms submitted to the committee.	Scott, Charlotte	Red Knot	Island View Park	Rathbun Lake, Island View Area near the dedication site	Beach - actually mud	The documentation form by Charlotte Scott is the earliest and the one that forms the basis of this record. Other documentation forms by Tom Johnson and Ray Cummins were submitted later. Other observers include Dot Cornett, Mary Montgomery, and Kay Malmberg. \| Elimination of similar species: We considered Pectoral Sandpipers but decided they (the pectorals) were more slender, longer legs. Also considered Sanderlings, but thought they were lighter and smaller than our birds. \| The original documentation form event lasted from 07:45:00/08:45:00 intermittently.	Iowa Ornithologists' Union \| MS 166	10	1
Records Committee review for rare bird sighting for Curve-billed Thrasher near Honey Creek State Park at Rathbun Reservoir, 1981	Administrative records Clippings (information artifacts) Field notes Photographs	Bird watching Ornithology Ornithology--Societies, etc	1981-01-31	1993-08-16	Rare birds documentation form	Records Committee review for a Curve-billed Thrasher near Honey Creek State Park at Rathbun Reservoir in Appanoose County, IA on January 31, 1981. Includes a record review document with votes, two articles in Iowa Bird Life, a draft of an Iowa Bird Life article, a photocopy of a photograph, and two documentation forms submitted to the committee.	Kent, Thomas H. (Thomas Hugh), 1934-	Curve-billed Thrasher	Honey Creek State Park	Rathbun Lake, Appanoose Co IA	General: wooded brushy creek valley at edge of small open residential area Specific: Lake Shore Height near Honey Creek Stale Park, Rathbun Reservoir	The documentation form by Thomas Kent forms the basis of this record. Another documentation forms by Michael Newlon was submitted. Other observers include Bill Heusinkveld, Fred Drum, Ginny Drum, Charlotte Scott, and Thomas Shires. \| Elimination of similar species: All of brown Thrashers, Sage Thrasher by size, markings and bill, Bendine's Thrasher by color, bill and eye color. Also wing bars and tips on tail \| The original documentation form event lasted from 13:45:00/14:15:00.	Iowa Ornithologists' Union \| MS 166	13	11
Rare bird documentation form for Black Scoter at Rathbun Lake, 1990	Field notes	Birds--Identification Ornithology Rare birds	1990-12-15	N/A	Rare birds documentation form	Rare bird documentation form for two Black Scoters at Rathbun Lake in Appanoose County, IA on December 15, 1990.	Egeland, Paul	Black Scoter	Rathbun Lake	Rathbun Lake just off face of Rathbun Dam	Lake on Rock face of Dam	The documentation form by Paul A Egeland is the only one submitted and forms the basis of this record. Other observers include Deb Egeland and Ray Cummins. \| Elimination of similar species: Consulted "Birds of North America" after by Chander S. Robbins, etc. Field notes were taken. \| The original documentation form event lasted from 07:30:00/07:34:00.	Iowa Ornithologists' Union \| MS 166	33	13
Records Committee review for rare bird sighting for Ivory Gull at Rathbun Reservoir, 1975	Administrative records Clippings (information artifacts) Correspondence Field notes	Bird watching Ornithology Ornithology--Societies, etc	1975-12-20	1999-04-02	Rare birds documentation form	Records Committee review for an Ivory Gull at Lake Rathbun in Appanoose County, IA on December 20, 1975. Includes a record review document with votes, an article in Iowa Bird Life, request for reconsideration, correspondence about the sighting and review including an unreviewed documentation form, and a documentation form submitted to the committee and reviewed.	Ayres, Charles C., Jr.	Ivory Gull	Rathbun Lake	Rathbun Lake in Appanoose County, Iowa, 7 miles north of Centerville. Surface area 11,000 acres, about 180 miles of shoreline. Corps of Engineers project.		The documentation form by Charles C. Ayres, Jr. is the only one reviewed and forms the basis of this record. Another documentation form by Tom Johnson was submitted and not reviewed. Other observers include Blossom H. Hallberg, Virgil Corzette, Jean Corzette, Darlene Ayres, Gary Wymore, and Madeline Wymore. \| The original documentation form event lasted from 13:15:00/13:28:00.	Iowa Ornithologists' Union \| MS 166	11	12
Records Committee review for rare bird sighting of Pacific Loon at Rathbun Reservoir, 1996	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1996-10-11	2000-11-27	Rare birds documentation form	Records Committee review for a Pacific Loon at Rathbun Dam in Appanoose County, IA on October 11, 1996. Includes a record review document with votes and a documentation form submitted to the committee.	Cummins, Raymond L.	Pacific Loon	Rathbun Dam	Rathbun dam, Appanoose Co.	Openwater	The documentation form by Ray Cummins is the only one submitted and forms the basis of this record. Other observers include Bill Cummins. \| Elimination of similar species: Common and Red-throated both have a dark nape than back and have white above the eye. \| The original documentation form event lasted from 08:30:00/08:40:00.	Iowa Ornithologists' Union \| MS 166	7	7
Rare bird documentation form for Black Scoter at Rathbun Dam, 1990	Field notes	Birds--Identification Ornithology Rare birds	1990-12-15	1990-12-17	Rare birds documentation form	Rare bird documentation form for two Black Scoters at Rathbun Dam in Appanoose County, IA on December 15, 1990.	Cummins, Raymond L.	Black Scoter	Rathbun Dam	Rathbun Dam Appanoose Co., Iowa	Open water	The documentation form by Ray Cummins is the only one submitted and forms the basis of this record. Other observers include Paul and Deb Egeland. \| Elimination of similar species: Whitewinged scoter by all black wings. Surf scoter by white solid cheek patch. Ruddy Duck by size and black belly. \| The original documentation form event lasted from 07:30:00/07:35:00.	Iowa Ornithologists' Union \| MS 166	33	13
Rare bird documentation form for Eared Grebe at Rathbun Dam, 1990	Field notes	Birds--Identification Ornithology Rare birds	1990-12-15	1990-12-19	Rare birds documentation form	Rare bird documentation form for two Eared Grebes at Rathbun Dam in Appanoose County, IA on December 15, 1990.	Cummins, Raymond L.	Eared Grebe	Rathbun Dam	Rathbun Dam Appanoose Co.	Rocky shore face of dam	The documentation form by Ray Cummins is the only one submitted and forms the basis of this record. Other observers include Paul Egeland, Deb Egeland, Marjorie Heusinkveld, Bill Heusinkveld, and Mark Hoffman. \| Elimination of similar species: See above. I was convinced it would be a Horned Grebe, but all the field marks including the suttle [sic] difference in size an [sic] shape supported Eared Grebe forcing me to change my mind. \| The original documentation form event lasted from 10:00:00/10:05:00.	Iowa Ornithologists' Union \| MS 166	32	14
Rare bird documentation form for Peregrine Falcon at Coralville Reservoir, 1983	Field notes	Birds--Identification Ornithology Rare birds	1983-10-02	1983-11-28	Rare birds documentation form	Rare bird documentation form for a Peregrine Falcon at Ranch Corner at Coralville Reservoir in Johnson County, IA on October 2, 1983.	Newlon, Michael C.	Peregrine Falcon	Hawkeye Wildlife Management Area	Ranch Corner, Coralville Reservoir, Johnson Co IA	Reservoir flooplain with dead trees, weedy flats, willows	The documentation form by Michael Newlon is the only one submitted and forms the basis of this record. \| Elimination of similar species: face pattern eliminates only similar falcons. \| The original documentation form event lasted from 12:00:00/13:00:00.	Iowa Ornithologists' Union \| MS 166	33	34
Rare bird documentation form for Prairie Falcon at Worth Township in Boone County, 1982	Field notes	Birds--Identification Ornithology Rare birds	1982-02-20	N/A	Rare birds documentation form	Rare bird documentation form for a Prairie Falcon at Worth Township in Boone County, IA on February 20, 1982.	Martin, Kevin	Prairie Falcon	Worth Township	R. 26 T83 Sec. 12 NENE	open field	The documentation form by Kevin Martin is the only one submitted and forms the basis of this record. Other observers include Carol Martin. \| Elimination of similar species: Kestrel and Peregrine do not have the black arm pits or brown back. to [sic] large for a Kestrel. \| The original documentation form event occurred around 13:10:00.	Iowa Ornithologists' Union \| MS 166	33	35
Rare bird documentation form for King Rail in northwest Marshall County, 1981	Field notes	Birds--Identification Ornithology Rare birds	1981-05-14	1981-05-24	Rare birds documentation form	Rare bird documentation form for a King Rail in northwest Marshall County, IA on May 14, 1981.	Proescholdt, Beth	King Rail	Marshall County	Private gravel pit in n.w. Marshall County	marshy area of a gravel pit - this spot not worked for a long time shallow water of small pond, surrounded by trees + brush	The documentation form by Beth Proescholdt is the only one submitted and forms the basis of this record. Other observers include Phyllis Harris, Garnita Seward, and Ramona Sommerlot. \| Elimination of similar species: Clapper Rail Virginia Rail. \| The original documentation form event lasted from 10:00:00/10:15:00.	Iowa Ornithologists' Union \| MS 166	33	41
Records Committee review for rare bird sighting of Ferruginous Hawk at Princeton Marsh, 1990	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1990-05-08	1993-07-17	Rare birds documentation form	Records Committee review of a Ferruginous Hawk at Princeton Marsh in Scott County, IA on May 8, 1990. Includes a record review document with votes and a documentation form submitted to the committee.	Petersen, Peter C.	Ferruginous Hawk	Princeton State Wildlife Management Area	Princeton Marsh, Scott Co., IA.	bird flying of marsh & agricultural area	The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Brian Blevins and Don Moeller. \| Elimination of similar species: Red-tailed Hawk no windows from above, legs white, has breast band, tail uniform rusty red. \| The original documentation form event lasted from 13:30:00/13:32:00.	Iowa Ornithologists' Union \| MS 166	9	1
Rare bird documentation form for Tundra Swan at Princeton Marsh, 1991	Field notes	Birds--Identification Ornithology Rare birds	1991-12-19	1992-01-09	Rare birds documentation form	Rare bird documentation form for two Tundra Swans at Princeton Marsh in Scott County, IA on December 19, 1991.	Barker, Ann M.	Tundra Swan	Princeton State Wildlife Management Area	Princeton Marsh 3/4 mi N of pumping station on dike	Patch of open water surrounded by ice - river backwater	The documentation form by Ann M. Barker is the only one submitted and forms the basis of this record. Other observers include Don Moeller, Diann Huysinger, and Bernie Carpenter. \| Elimination of similar species: Trumpeter Swan - immature had definite pink at base of bill, Trumpeter immature would show black at base. Both were seen straight on; white of forehead at base of bill appeared to come down between the eyes, unlike the Trumpeter, whose bill appears more straight across between the eyes. Black of bill did not include the eye as it would in Trumpeter. Mute Swan - birds in question had no knob at base of bill and necks were held straight rather than curved. Secondaries not raised. \| The original documentation form event lasted from 10:00:00/10:15:00.	Iowa Ornithologists' Union \| MS 166	33	1
Rare bird documentation form for Surf Scoter at Princeton Marsh, 1986	Field notes	Birds--Identification Ornithology Rare birds	1986-05-15	N/A	Rare birds documentation form	Rare bird documentation form for a Surf Scoter at Princeton Marsh in Scott County, IA on May 15, 1986.	Petersen, Peter C.	Surf Scoter	Princeton State Wildlife Management Area	Princeton Marsh	Pond near mouth of Wapsipinicon R, I mi. from Miss R. chanel [sic] Central pond, west edge of Princton [sic] Marsh State Wildlife area.	The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Don Moeller, Corey Blevins, Gil Sandvick, Mary Lou Petersen, Ann Barker, and John Hoogerheide. \| Elimination of similar species: Black scoter - no white on head. Wh-wg. Scoter, has white on wing, no white on back of head. \| The original documentation form event lasted from 06:40:00/06:55:00, 09:45:00/10:00:00, and 15:45:00/16:00:00.	Iowa Ornithologists' Union \| MS 166	33	11
Rare bird documentation form for King Rail at Prairie Rail Trail County Park, 1985	Field notes	Birds--Identification Ornithology Rare birds	1985-05-22	1985-06-02	Rare birds documentation form	Rare bird documentation form for a King Rail at Prairie Rail Trail County Park in Story County, IA on May 22, 1985.	Dinsmore, Stephen J.	King Rail		Prairie Rail Trail County Park, Story County	along a drainage ditch surrounded by open cropland	The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. Other observers include Kraig Downs. \| Elimination of similar species: Eliminated from other rails by size, longer bill and rusty underparts. \| The original documentation form event lasted from 15:30:00/15:40:00.	Iowa Ornithologists' Union \| MS 166	33	41
Records Committee review for rare bird sighting of Pacific Loon at Saylorville Reservoir, 1986	Administrative records Clippings (information artifacts) Correspondence Field notes	Bird watching Ornithology Ornithology--Societies, etc Wildlife conservation	1986-11-01	1996-04-24	Rare birds documentation form	Records Committee review for a Pacific Loon at Saylorville Reservoir in Polk County, IA on November 1, 1986. Includes a record review document with votes, revotes on sighting, correspondence regarding sighting from Ronald E. Goetz to Thomas H. Kent, article from Iowa Bird Life, and a documentation form submitted to the committee.	Dinsmore, Stephen J.	Pacific Loon	Saylorville Lake	Prairie Flower Recreation Area, Saylorville Reservoir	large body of water	The documentation form by Steve Dinsmore is the earliest and the one that forms the basis of this record. \| Elimination of similar species: Common Loon eliminated by the more rounded forehead, the smaller, darker bill, the paler nape and crown, the gray necklace on the throat, and by the overall smaller size(a small Common Loon should still show the features of a normal Common Loon). Red-throated Loon was separated by the straight (not upturned) bill, the dark, unspeckled [sic] back, and the gray necklace. \| The original documentation form event lasted from 15:00:00/15:20:00.	Iowa Ornithologists' Union \| MS 166	7	7