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 Red Knot at Blue Lake, 1994	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1994-05-12	1996-04-25	Rare birds documentation form	Records Committee review for a Red Knot at Blue Lake in Monona County, IA on May 12, 1994. Includes a record review document with votes, an article in Iowa Bird life, field notes from the sighting, and a documentation form submitted to the committee. The date is incorrectly recorded on the documentation form as April 12, 1994.	Ernzen, Peter	Red Knot	Blue Lake	South Blue Lake in Monona County	marshy shoreine [sic]	The documentation form by Peter Ernzen is the only one submitted and forms the basis of this record. \| Elimination of similar species: Closest similar species would be Dunlin?, eliminated by Dunlins pronounced downcurved bill, blue gray color was dissimilar to the pronounced gray and white of the observed bird. See attached documents. \| The original documentation form event occurred around 19:50:00.	Iowa Ornithologists' Union \| MS 166	10	1
Records Committee review for rare bird sighting for Rock Wren near C Street Roller Dam in Cedar Rapids, 1986	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1986-10-30	1993-09-07	Rare birds documentation form	Records Committee review for a Rock Wren near C Street Roller Dam in Cedar Rapids in Linn County, IA on October 30, 1986. Includes a record review document with votes, an article in Iowa Bird Life, a summary of the review, and a documentation form submitted to the committee.	Fye, Dale Fye, Helen	Rock Wren	C Street Roller Dam	Southeast Cedar Rapids, Near Roller Dam, near Rocky Rail Road right of way with some dried weeds and short brush		The documentation form by Dale and Helen Fye is the only one submitted and forms the basis of this record. \| Elimination of similar species: Carolina Wren is browner and has a sharper eyeline. House wren is smaller. Bewicks has unstreaked breast and specific tail movement, + is predominately brown, also has a more distinct eyeline. Canyon has unstreaked breast and dark belly \| The original documentation form event lasted from 17:00:00/17:15:00.	Iowa Ornithologists' Union \| MS 166	13	1
Records Committee review for rare bird sighting for Rock Wren north of Stone State Park, 1984	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1984-05-21	1993-09-01	Rare birds documentation form	Records Committee review for a Rock Wren north of Stone State Park in Woodbury County, IA on May 21, 1984. Includes a record review document with votes, an article in Iowa Bird Life, an article in American Birds, and two documentation forms submitted to the committee.	Kent, Thomas H. (Thomas Hugh), 1934-	Rock Wren	Stone State Park	0.6 mi. n. of NE entrance to Stone P. Woodbury Co., Iowa	Road cut in loess hill.	The documentation form by Thomas H. Kent forms the basis of this record. Another documentation form by W. Ross Silcock was submitted. \| Elimination of similar species: Size, uncocked tail, slight eye-line, bobbing, and note eliminate other wrens. \| The original documentation form event lasted from 08:55:00/09:00:00.	Iowa Ornithologists' Union \| MS 166	13	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
Records Committee review for rare bird sighting of Red Knot at Union Slough National Wildlife Refuge, 1996	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1996-08-25	2000-11-22	Rare birds documentation form	Records Committee review for two Red Knots at Union Slough National Wildlife Refuge in Kossuth County, IA on August 25, 1996. Includes a record review document with votes, an Iowa Bird Life article, and a documentation form submitted to the committee.	Kenne, Matthew C.	Red Knot	Union Slough National Wildlife Refuge	USNWR 1 mile N. of Headquarters, N. of road on mudflats	mudflats from receded large pool	The documentation form by Matthew Kenne is the only one submitted and forms the basis of this record. \| Elimination of similar species: The reddish underside of one bird was reminiscent of Dowitchers, but the back pattern in flight and bill differences are way off. Sanderling's feeding habits are different from the simple pecking these birds did and the gray one didn't have the 'black shoulder' or big wingstripe. Curlew Sandpiper's bill is curved. \| The original documentation form event lasted from 09:00:00/09:30:00.	Iowa Ornithologists' Union \| MS 166	10	1
Records Committee review for rare bird sighting of Red Knot at Saylorville Reservoir, 1995	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1995-09-29	2000-11-20	Rare birds documentation form	Records Committee review for a Red Knot at Saylorville Reservoir in Polk County, IA on September 29, 1995. Includes a record review document with votes, an article in Iowa Bird Life, and two documentation forms submitted to the committee.	Dinsmore, Stephen J.	Red Knot	Saylorville Lake	Saylorville Res., Polk Co.	large mudflat at north end of reservoir	The documentation form by Stephen J. Dinsmore is the one that forms the basis of this record. Another documentation form by Chris Edwards was submitted. Other observers include James Huntington, Chris Caster, and many unidentified other observers. \| Elimination of similar species: Sanderling was eliminated by size and wing and tail patterns, all of which were compared directly in the field. No other shorebird is likely to be confused with this species. \| The original documentation form event lasted from 07:45:00/08:20:00.	Iowa Ornithologists' Union \| MS 166	10	1
Records Committee review for rare bird sighting of Red Knot at Saylorville Reservoir, 1995	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1995-09-01	2000-11-22	Rare birds documentation form	Records Committee review for a Red Knot at Saylorville Reservoir in Polk County, IA on September 1, 1995. Includes a record review document with votes, an article in Iowa Bird Life, and a documentation form submitted to the committee.	Dinsmore, Stephen J.	Red Knot	Saylorville Lake	Saylorville Res., Polk Co.	large mudflat	The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. \| Elimination of similar species: The combination of size, bill shape, and wing and tail patterns eliminates all other shorebirds. The most similar species would probably be Sanderling and Dunlin, both of which would be much smaller than this bird. \| The original documentation form event lasted from 08:55:00/09:10:00.	Iowa Ornithologists' Union \| MS 166	10	1
Records Committee review for rare bird sighting of Ferruginous Hawk east of Shenandoah, 1983	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1983-10-26	1993-09-01	Rare birds documentation form	Records Committee review of a Ferruginous Hawk east of Shenandoah in Page County, IA on October 26, 1983. Includes a record review document with votes, an article in Iowa Bird Life, a summary of the review, and a documentation form submitted to the committee.	Braley, Jean B.	Ferruginous Hawk	Shenandoah	E. of Shenandoah on Highway #2		The documentation form by Jean Braley is the earliest and the one that forms the basis of this record. Other observers include Francis Braley.	Iowa Ornithologists' Union \| MS 166	9	1
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 of Red Knot at Oak Grove Beach at Saylorville Reservoir, 1986	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1986-08-05	1993-09-07	Rare birds documentation form	Records Committee review for two Red Knots at Oak Grove Beach at Saylorville Reservoir in Polk County, IA on August 5, 1986. Includes a record review document with votes, summary of the review, an article of Iowa Bird Life, and three documentation forms submitted to the committee.	Dinsmore, Stephen J.	Red Knot	Oak Grove Recreation Area	Oak Grove Beach, Saylorville Reservoir	sandy beach along lake	The documentation form by Steve Dinsmore is the earliest and the one that forms the basis of this record. Other documentation forms by Steve Dinsmore (later sighting) and Bob Myers were submitted later. \| Elimination of similar species: Only two other sandpipers have reddish underparts-Curlew Sandpiper and Sanderling. Bill shape eliminates Curlew Sandpiper. The larger size, extent of reddish underparts, leg color, white rump, and wing stripe confined to the secondaries eliminates Sanderling. \| The original documentation form event lasted from 07:31:00/07:57:00 and 08:17:00/08:26:00.	Iowa Ornithologists' Union \| MS 166	10	1
Records Committee review for rare bird sighting of Red Knot at Hendrickson Marsh, 1984	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1984-09-15	1993-09-01	Rare birds documentation form	Records Committee review for a Red Knot at Hendrickson Marsh in Story County, IA on September 15, 1984. Includes a record review document with votes, an article in Iowa Bird Life and five documentation forms submitted to the committee.	Dinsmore, Stephen J.	Red Knot	Hendrickson Marsh Lake	Hendrickson Marsh, Story Co.	mudflat area in drained section of marsh	The documentation form by Steve Dinsmore is the earliest and the one that forms the basis of this record. Other documentation forms by Hank Zaletal, Jim Dinsmore, Mark Proescholdt, and Paul Martsching were submitted later. Other observers include Joe Schaufenbuel. \| Elimination of similar species: peeps sp. because of smaller size, lack of gray scaly back, lack of white stripe above eye and lack of black wing tips with white wing stripe. Sanderling was eliminated by smaller size, unscaly back, larger amount of black on wings and lack of necklace on breast. Eliminated from other shore birds by combination of chunky short legged appearance, white wing stripe, necklace on breast and grayish, scaly appearance. \| The original documentation form event lasted from 13:00:00/18:30:00.	Iowa Ornithologists' Union \| MS 166	10	1
Records Committee review for rare bird sighting of Ferruginous Hawk at Thornton, 1997	Administrative records Clippings (information artifacts) Field notes Photographs	Bird watching Ornithology Ornithology--Societies, etc	1997-02-12	2000-11-24	Rare birds documentation form	Records Committee review of a Ferruginous Hawk at Thornton in Cerro Gordo, IA on February 12, 1997. Includes a record review document with votes, a photo, an article in Iowa Bird Life, and five documentation forms submitted to the committee.	Fischer, Carolyn J.	Ferruginous Hawk	Thornton	S.W. Cerro Gordo Co. N.W. of Thornton	open country	The documentation form by Carolyn Fischer is the earliest and the one that forms the basis of this record. Other documentation forms by Jim Fuller, Jim Dinsmore, Thomas Kent, and Stephen Dinsmore were submitted later. Other observers include Dick Tetrault, Helen Fye, Dale Fye, Diane Porter, G. Foster, Chris Caster, Mike Overton, Dixie Overton, Rob Muilenburg, Jan Walter, Tim Phalen, Lowell Washburn, Gerald White, and many unidentified observers. \| Elimination of similar species: Krider's Hawk - face wasn't all white + back wasn't heavily spotted. Also larger - Red-tailed Hawk - could not see dark patagial marks. Wingtips were long. Tail was not red - \| The original documentation form event lasted from 14:30:00/15:20:00.	Iowa Ornithologists' Union \| MS 166	9	1
Records Committee review for rare bird sighting of Ferruginous Hawk at both Oxford and Homestead, 1979	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1979-02-03	1994-02-03	Rare birds documentation form	Records Committee review of a Ferruginous Hawk at both Oxford in Johnson County, IA and Homestead in Iowa County, IA on February 3 and 4, 1979. Includes a record review document with votes, two articles in Iowa Bird Life, and two documentation forms submitted to the committee.	Hollis, Richard Jule	Ferruginous Hawk	Township of Oxford	N Eastern Oxford Township, Johnson Co., Iowa	perched on hedge rows or wood edges over snow covered fields	The documentation form by Richard Jule Hollis is the earliest and the one that forms the basis of this record. Other documentation forms by Carl Bendorf were submitted later. Other observers include Janet Hollis and Cal Knight. \| Elimination of similar species: red upper surface of Iower tail and lack of belly band eliminates Buteo lagopus white under side of tail (w/o terminal band) + white upper tail tend to eliminate B. jamaicensis. \| The original documentation form event occurred at 16:00:00 for the sighting on February 4, 1979 and had no time for February 3, 1979.	Iowa Ornithologists' Union \| MS 166	9	1
Records Committee review for rare bird sighting of Ferruginous Hawk south of Shenandoah, 1977	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1977-10-27	1994-02-03	Rare birds documentation form	Records Committee review of a Ferruginous Hawk south of Shenandoah in Page County, IA on October 27, 1977. Includes a record review document with votes, two articles in Iowa Bird Life, a transcription of the documentation form, and a documentation form submitted to the committee.	Phipps, Ruth O.	Ferruginous Hawk	Shenandoah	Six miles south of Shenandoah, Iowa - Highway No. 59	General: western great plains Specific: open grasslands and plains	The documentation form by Ruth O. Phipps is the only one submitted and forms the basis of this record. Other observers include Wayne Phipps. \| Elimination of similar species: Red-tailed Hawk and Rough-legged. \| The original documentation form event lasted from 13:30:00 and 14:30:00/14:45:00.	Iowa Ornithologists' Union \| MS 166	9	1
Records Committee review for rare bird sighting of Ferruginous Hawk at Rathbun Reservoir, 1986	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1986-02-01	1993-09-07	Rare birds documentation form	Records Committee review of a Ferruginous Hawk at Rathbun Reservoir in Appanoose County, IA on February 1, 1986. Includes a record review document with votes, an article in Iowa Bird Life, a summary of the review, and a documentation form submitted to the committee.	Heusinkveld, Bill	Ferruginous Hawk	Rolling Cove Park	Rolling Cove Area, Rathbun Lake, Appanoose County	Perched in Large Tree in Grove next to Lake Rathbun	The documentation form by Bill Heusinkveld is the only one submitted and forms the basis of this record. Other observers include Marjorie Heusinkveld \| Elimination of similar species: Red tail eliminated by complete lack of belly band, no red tail. \| The original documentation form event lasted from 09:04:00/09:15:00.	Iowa Ornithologists' Union \| MS 166	9	1
Records Committee review for rare bird sighting of Ferruginous Hawk in Story County, 1985	Administrative records Clippings (information artifacts) Correspondence Field notes	Bird watching Ornithology Ornithology--Societies, etc	1985-09-29	1993-09-03	Rare birds documentation form	Records Committee review of a Ferruginous Hawk at Tiegs Marsh in Story County, IA on September 29, 1985. Includes a record review document with votes, correspondence about bird sightings, an article in Iowa Bird Life, and two documentation forms submitted to the committee.	Dinsmore, Stephen J.	Ferruginous Hawk	Story County	Tiegs Marsh, Story County	in open cropland near a small marsh	The documentation form by Steve Dinsmore is the earliest and the one that forms the basis of this record. Other documentation forms by Fred J. Alsop were submitted later. Other observers include Dr. George Brown and Paul Martsching. \| Elimination of similar species: Red-tailed hawk eliminated by lack of dark bar on leading edge of underwing, position of white wing patches, white tail with rusty tip, lack of belly band, and rust color on back and wings. Rough-legged hawk eliminated by lack of wrist marks, rust color on back and wings, all white legs, unbanded tail and lack of belly band. \| The original documentation form event lasted from 09:30:00/09:35:00 and 10:10:00 to 10:15:00 estimated.	Iowa Ornithologists' Union \| MS 166	9	1
Records Committee review for rare bird sighting of Ferruginous Hawk at Otter Creek Marsh, 1984	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1984-12-23	1993-09-01	Rare birds documentation form	Records Committee review of a Ferruginous Hawk at Otter Creek Marsh in Tama County, IA on December 23, 1984. Includes a record review document with votes, an article from Iowa Bird Life, and a documentation form submitted to the committee.	Kent, Thomas H. (Thomas Hugh), 1934-	Ferruginous Hawk	Otter Creek Marsh State Wildlife Refuge	Otter Creek M., Tama Co., Iowa	large, wide riverbottom marsh with scattered woods.	The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. \| Elimination of similar species: According to Eckert, the upper wing patches are diagnostic if the location is right. He gives the following example as an acceptable documentation: 'On the upper surface of each wing there was a rectangular or oval white patch on the flight feathers. This patch was on the inner primaries, and perhaps faded a bit into the secondaries and outer primaries.' This description fits the bird I saw. Eckert gives two other diagnostic marks that I did not see (feathered legs, rufous back and shoulders), but only one of these three marks is needed. The white tail is not diagnostic, but coupled with the light underparts and generally dark upper wing surface, tends to exclude Krider's and Harlan's Hawks which would have light upper wings and dark underparts, respectively. An ordinary Red-tailed Hawk would not ordinarily have an all white-tail nor such prominent upper wing patches. The raised wings in flight in the absence of wind favor Ferruginous Hawk over Red-tailed and Rough-legged Hawks. Rough-legged Hawk is excluded by the lack of prominent black and white pattern to body, wing and tail. \| The original documentation form event lasted from 14:45:00/14:57:00.	Iowa Ornithologists' Union \| MS 166	9	1
Records Committee review for rare bird sighting of Ferruginous Hawk west of Liscomb, 1984	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1984-09-22	1993-09-01	Rare birds documentation form	Records Committee review of a Ferruginous Hawk west of Liscomb in Marshall County, IA on September 22, 1984. Includes a record review document with votes, two articles in Iowa Bird Life, notes about Ferruginous Hawk sightings in Iowa, and two documentation forms submitted to the committee.	Proescholdt, Mark	Ferruginous Hawk	Liscomb	Just west of Liscomb - (Marshall County)	Open country over cultivated farm fields - Iowa River 1/2 mile away	The documentation form by Mark Proescholdt forms the basis of this record. Another documentation form was submitted by Beth Proescholdt. \| Elimination of similar species: Red-tailed hawks do not have definite light wing patches or "windows" on the inner primaries. \| The original documentation form event lasted from 09:30:00/09:32:00.	Iowa Ornithologists' Union \| MS 166	9	1
Records Committee review for rare bird sighting of Ferruginous Hawk east of Laurens, 1984	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1984-10-25	1993-09-01	Rare birds documentation form	Records Committee review of a Ferruginous Hawk at Laurens in Pocahontas County, IA on October 25 and 26, 1984. Includes a record review document with votes, an article from Iowa Bird Life, and two documentation forms submitted to the committee.	Carlson, Judith	Ferruginous Hawk	Laurens	2 miles East Laurens, IA on Hiway [sic] 10	Road Ditch Fench [sic] Line & Large Farm Grove	The documentation form by Judith Carlson is the earliest and the one that forms the basis of this record. Other documentation forms by Ronald Harms were submitted later. Other observers include Helen Carlson. \| Elimination of similar species: Red Tail are darker and stockier in appearance. Osprey - smaller, darker on back and eye stripe wider, lower & longer. Rough Legged darker all over on front. \| The original documentation form event lasted from 17:45:00/18:15:00 and 10:30:00/11:25:00 on October 26, 1984.	Iowa Ornithologists' Union \| MS 166	9	1