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-throated Loon at Lake Manawa, 1989	Administrative records Clippings (information artifacts) Correspondence Field notes	Bird watching Ornithology Ornithology--Societies, etc	1989-04-27	1993-07-21	Rare birds documentation form	Records Committee review for two Red-throated Loons at Lake Manawa in Pottawattamie County, IA on April 27, 1989. Includes a record review document and four documentation forms submitted to the committee.	Bray, Tanya	Red-throated Loon	Lake Manawa	Lake Manawa, Pottawattamie County		The documentation form by Tanya E. Bray is the earliest and the one that forms the basis of this record. Other documentation forms by Babs Padelford, Loren Padelford, Marc Lund, and Bob Myers were submitted later. Other observers include B.J. Rose, Doug Rose, Roger Rose, Dave Starr, and Jerry Toll. \| Elimination of similar species: Pacific Loon, eliminated by red color of throat patch and shape of bill. This bird's bill was more like that of a Eared Grebe; that is, very slender and not as loon-like as that of Pacific Loon. Pacific Loon's bill looks like a small Common Loon. Pacific Loon's bill looks like a small Common Loon. Common Loon: eliminated by size of bird, shape of bill, and red throated patch. \| The original documentation form event lasted from 16:15:00/16:45:00.	Iowa Ornithologists' Union \| MS 166	7	5
Records Committee review for rare bird sighting for Rock Wren at Red Oak, 1991	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1991-09-17	1993-07-17	Rare birds documentation form	Records Committee review for two Rock Wrens at Red Oak in Montgomery County, IA on September 17, 1991. Includes a record review document with votes, an article in Iowa Bird Life, and a documentation form submitted to the committee.	Carlisle, David	Rock Wren	Red Oak	[...] my house in Red Oak, IA		The documentation form by Dave Carlisle is the only one submitted and forms the basis of this record. \| Elimination of similar species: [...] In my attempts to identify the birds, my first observations led me to believe they both were wrens; however, they were larger than the common house wren and lacked the definite light eye ring. [...] I took notice that the bird in hand lacked the definite eye stripe characteristic of the Bewick's, Carolina, and Marsh wrens. There were no white stripes on the back as in the Marsh Wren and it did not have the white outer tail feathers characteristic of Bewick's Wren. \| The original documentation form event occurred lasted from approximately 07:50:00/08:00:00.	Iowa Ornithologists' Union \| MS 166	13	1
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
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 Thayer's Gull at Saylorville Dam, 1989	Administrative records Clippings (information artifacts) Field notes Photographs	Bird watching Ornithology Ornithology--Societies, etc	1989-12-07	1993-08-06	Rare birds documentation form	Records Committee review for two Thayer's Gulls at Saylorville Dam in Polk County, IA on December 7, 1989. Includes a record review document with votes, a photocopy of a photograph on the cover page of Iowa Bird Life, and a documentation form submitted to the committee.	Dinsmore, Stephen J.	Thayer's Gull	Saylorville Dam	Saylorville Reservoir, Polk Co.	large reservoir	The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. \| Elimination of similar species: The size, uniform body and wing color, pale underside of the flight feathers, and tail band eliminates Herring and Glaucous/Iceland gulls, the most likely candidates for confusion. \| The original documentation form event lasted from 14:04:00/16:42:00.	Iowa Ornithologists' Union \| MS 166	11	3
Records Committee review for rare bird sighting of Bean Goose at DeSoto National Wildlife Refuge, 1984	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1984-12-29	1994-02-27	Rare birds documentation form	Records Committee review of a Bean Goose at DeSoto National Wildlife Refuge in Harrison County on December 29, 1984. Includes a record review document with votes, two articles from bird publications, and eight documentation forms submitted to the committee.	Grenon, Alan G. Wright, Rick	Bean Goose	DeSoto National Wildlife Refuge	In air over DeSoto Lake, east of Wood Duck Nature Trail, Washington Cty., NE, and Pottowatomie Cty., IA, DeSoto National Wildlife Refuge		The documentation form by Alan Grenon and Rick Wright is the earliest and the one that forms the basis of this record. Other documentation forms by Loren Padelford and Babs Padelford, Tanya Bray, Francis L. Moore, Thomas H. Kent, Ross Silcock, Barbara L. Wilson, and Steve Dinsmore were submitted later. Other observers include Jim Dinsmore, Betty Grenon, Graham Chisholm, David Starr, B.J. Rose, Duane Bright, Nancy Curry, Al Werthman, and Melba Wigg. \| Elimination of similar species: Bird was noticed flying with seven greater white-fronted geese (A. albifrons), first noticed as significantly larger than accompanying A. albifrons, flew pas several times at distances greater than 200m. Some primaries were damaged. The A. albifrons all had visible pink bills, white faces, and speckled bellies (all adults) The A. fabalis was ca. 125% the size of A. albifrons, with a longer neck, longer bill, and a swan-like profile. Underside plain, grading from the dark brown at chin to white at the vent. Gray-brown above, back feathers with contrasting light edges, primaries dark. Bill: significantly longer than A. albifrons, dark with light area near or at tip, long head profile. Feet: orange. White above and at tip of tail as in A. albifrons. \| The original documentation form event lasted from 15:00:00/15:30:00.	Iowa Ornithologists' Union \| MS 166	8	5
Records Committee review for rare bird sighting of Black-bellied Whistling-Duck at Big Marsh, 1993	Administrative records Clippings (information artifacts) Correspondence Field notes Photographs	Bird watching Ornithology Ornithology--Societies, etc	1993-11-01	1996-04-25	Rare birds documentation form	Records Committee review of a Black-bellied Whistling-Duck at Big Marsh in Butler County, IA on November 1, 1993. Includes a record review document with votes, correspondence about the bird sighting, two photographs, an article in The Southwestern Naturalist, and a documentation form submitted to the committee.	Dinsmore, James J.	Black-bellied Whistling-Duck	Big Marsh Wildlife Area	Big Marsh	freshwater marsh	The documentation form by Jim Dinsmore is the only one submitted and forms the basis of this record. Other observers include Rodney Steere. \| Elimination of similar species: Nothing it could be confused with	Iowa Ornithologists' Union \| MS 166	8	3
Records Committee review for rare bird sighting of Black-bellied Whistling-Duck at Tomahawk Marsh, 1998	Administrative records Clippings (information artifacts) Field notes Maps (documents) Photographs	Bird watching Ornithology Ornithology--Societies, etc	1998-04-10	2000-11-24	Rare birds documentation form	Records Committee review of a Black-bellied Whistling-Duck at Tomahawk Marsh in Sac County on April 10, 1998. Includes a record review document with votes, a photograph, an article in Iowa Bird Life, a map of one of the sightings, and seven documentation forms submitted to the committee.	Reisz, Russell	Black-bellied Whistling-Duck	Tomahawk Marsh Wildlife Management Area	Tomahawk Marsh, Sac County, Iowa	marsh, wetland	The documentation form by Russell Reisz is the earliest and the one that forms the basis of this record. Other documentation forms by Peter Ernzen, Thomas H. Kent, Jim Fuller, Dick Tetrault, Chris Edwards, and Mark Proescholdt were submitted later. Other observers include Beth Proescholdt. \| Elimination of similar species: Fulvous Whistling-duck is the most similar species. This species was eliminated because it has a different bill color and a different leg color than the Black-bellied Whistling-duck. The Fulvous Whistling-duck also lacks the white wing patch and the dark belly of the Black-bellied Whistling-duck. These were all points of identification for the species seen at Tomahawk Marsh. \| The original documentation form event lasted from 19:58:00/19:58:00.	Iowa Ornithologists' Union \| MS 166	8	3
Records Committee review for rare bird sighting of Black-headed Gull at Jemmerson Slough Wildlife Management Area, 1997	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1997-07-16	2000-11-24	Rare birds documentation form	Records Committee review of a Black-headed Gull at Jemmerson Slough Wildlife Management Area in Dickinson County, IA on July 16, 1997. Includes a record review document with votes, an article in Iowa Bird Life, and a documentation form submitted to the committee.	Proescholdt, Mark	Black-headed Gull	Jemmerson Slough Wildlife Management Area	Jemmerson Slough area - Dickinson County	Small water area with land for gulls to roost on	The documentation form by Mark Proescholdt is the only one submitted and forms the basis of this record. Another observer is Ed Thelen. \| Elimination of similar species: No other gull quite like this one. A Bonaparte's Gull is smaller, has a black bill, and lacks the dark smudge on the underwings. \| The original documentation form event lasted from approximately 10:20:00/11:05:00.	Iowa Ornithologists' Union \| MS 166	10	21
Records Committee review for rare bird sighting of Black-legged Kittiwake at Lake Manawa, 1995	Administrative records Clippings (information artifacts) Field notes Photographs	Bird watching Ornithology Ornithology--Societies, etc	1995-09-24	2000-11-20	Rare birds documentation form	Records Committee review of a Black-legged Kittiwake at Lake Manawa in Pottawattamie County, IA on September 24, 1995. Includes a record review document with votes, two photographs, an article in Audubon Field Notes, an article in Iowa Bird Life, and three documentation forms submitted to the committee.	Padelford, Babs Padelford, Loren	Black-legged Kittiwake	Lake Manawa	Lake Manawa, Pottawattamie County, Iowa		The documentation form by Loren Padelford and Babs Padelford is the earliest and the one that forms the basis of this record. Other documentation forms by Thomas H. Kent and Jim Fuller were submitted later. Other observers include James Kovanda, Sandra Kovanda, Tim Schantz, Pam Allen, Reid Allen, Chuck Fuller, Eugene Armstrong, and Eloise Armstrong. \| The original documentation form event lasted from 10:30:00/10:45:00 and 18:15:00/18:20:00.	Iowa Ornithologists' Union \| MS 166	11	10
Records Committee review for rare bird sighting of Black-necked Stilt at Riverton Area, 1992	Administrative records Clippings (information artifacts) Field notes Photographs	Bird watching Ornithology Ornithology--Societies, etc	1992-05-12	1996-01-24	Rare birds documentation form	Records Committee review of a Black-necked Stilt at Riverton Area in Fremont County, IA on May 12, 1992. Includes a record review document with votes, an article in Iowa Bird Life, a photo, and three documentation forms submitted to the committee.	Johnson, Ann	Black-necked Stilt	Riverton Wildlife Management Area	Riverton Wildlife Area, Fremont Co., IOWA	Broad expanse of mud flats	The documentation form by Ann Johnson is the earliest and the one that forms the basis of this record. Other documentation forms by Pam Allen and Thomas H. Kent were submitted later. Other observers include Reid Allen, W. Ross Silcock, and Dick Tetrault. \| Elimination of similar species: Identification of a Black-necked Stilt is straight forward. The only other bird in North America which is even remotely similar is the American Avocet. It can be eliminated by the black feathering on the head and neck, straight bill, and pink legs. \| The original documentation form event lasted from 14:55:00/16:55:00.	Iowa Ornithologists' Union \| MS 166	9	20
Records Committee review for rare bird sighting of Black-necked Stilt at Snyders Bend Lake, 1991	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1991-04-06	1993-07-17	Rare birds documentation form	Records Committee review of a Black-necked Stilt at Snyders Bend Lake in Woodbury County, IA on April 6, 1991. Includes a record review document with votes, an article in Iowa Bird Life, and five documentation forms submitted to the committee.	Huser, Bill F.	Black-necked Stilt	Snyder Bend Park	Snyder's Bend Lake, Woodbury County, IA	Mudflats with mats of vegetation near old cattails	The documentation form by Bill Huser is the earliest and the one that forms the basis of this record. Other documentation forms by Bill Huser (additional sightings), Tanya Bray and Ross Silcock, Jim Fuller, and Babs and Loren Padelford were submitted later. Other observers include John Van Dyke, Eloise Armstrong, Eugene Armstrong, Bob Livermore, Bob Moritz, and Jerry Probst. \| Elimination of similar species: Phalaropes - smaller, not as distinct black + white pattern or as long legs. Am. Avocet: upturned bill, white or tawny head + necks - not black over white \| The original documentation form event occurred from 10:45:00/11:10:00, from 11:25:00/11:55:00, and around 13:30:00.	Iowa Ornithologists' Union \| MS 166	9	20
Records Committee review for rare bird sighting of Brant at De Soto National Wildlife Refuge, 1988	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1988-12-18	1993-08-04	Rare birds documentation form	Records Committee review of a Brant at De Soto National Wildlife Refuge in Harrison County, IA on December 18, 1988. Includes a record review document with votes, an article in Iowa Bird Life, a copy of a photo, and eight documentation forms submitted to the committee.	Rosenbaum, Mindy	Brant	DeSoto National Wildlife Refuge	In front of De Soto Visitor Center	frozen lake	The documentation form by Mindy Rosenbaum is the earliest and the one that forms the basis of this record. Other documentation forms by Steve Dinsmore, Robert K. Myers, Jim Fuller, Thomas H. Kent, Tanya Bray, Robert Cecil, and Ross Silcock were submitted later. Other observers include Francis Moore, Babs Padelford, Loren Padelford, John Hoogerheide, Eloise Armstrong, Eugene "Gene" Armstrong, and John Cecil. \| The original documentation form event lasted from 14:00:00/14:45:00.	Iowa Ornithologists' Union \| MS 166	8	9
Records Committee review for rare bird sighting of Brant at De Soto National Wildlife Refuge, 1980	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1980-11-02	1993-08-16	Rare birds documentation form	Records Committee review of a Brant at De Soto National Wildlife Refuge in Harrison County, IA on November 2, 1980. Includes a record review document with votes, an Iowa Bird Life article, and five documentation forms submitted to the committee.	Dinsmore, James J.	Brant	DeSoto National Wildlife Refuge	DeSoto Natl. Wildlife Refuge, Harrison Co (shot in NE corner on Iowa side of refuge)	Shot in field on refuge	The documentation form by James Dinsmore is the earliest and the one that forms the basis of this record. Other documentation forms by Randall G. Sease and Maury J. Muhm were submitted later. Other observers include John Kounas. \| Elimination of similar species: Canada Goose-size of hutchin's race but no white cheek patch, otherwise bill size, neck proportions, and overall size matched Hutchins. Brant-not adult because lacked white necklace, not dark race because belly was light. \| The original documentation form event lasted from 09:30:00/10:00:00.	Iowa Ornithologists' Union \| MS 166	8	9
Records Committee review for rare bird sighting of Brant at Whitebreast Park, 1987	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1987-10-04	1993-09-07	Rare birds documentation form	Records Committee review of a Brant at near Whitebreast Park in Marion County, IA on October 4, 1987. Includes a record review document with votes, an article in Iowa Bird Life and a documentation form submitted to the committee.	Dinsmore, James J.	Brant	Whitebreast Recreation Area	released at Polk City Wildlife Area; bird had been caught on south shore of Red Rock Reservoir, Marion County	freshwater lake	The documentation form by Jim Dinsmore is the earliest and the one that forms the basis of this record. Other observers include Jennifer Lancaster, Tom Miller, Steve Dinsmore, and Roger Sedlacek. \| Elimination of similar species: Canada Goose-small size eliminates all but the smallest races; the bird lacked a cheek patch. \| The original documentation form event lasted from 11:00:00/08:00:00 next day when they released the bird.	Iowa Ornithologists' Union \| MS 166	8	9
Records Committee review for rare bird sighting of Brant at Riverton Wildlife Management Area, IA, 1983	Administrative records Clippings (information artifacts) Correspondence Field notes	Bird watching Ornithology Ornithology--Societies, etc	1983-11-18	1993-09-01	Rare birds documentation form	Records Committee review of a Brant north of Riverton Wildlife Management Area in Fremont County, IA on November 18, 1983. Includes a record review document with votes, an article in Wildlife Notes, internal correspondence, and a documentation form submitted to the committee.	Priebe, Don	Brant	Riverton Wildlife Management Area	6 mi. N of Riverton on No. 2	Corn field	The documentation form by Don Priebe is the earliest and the one that forms the basis of this record. Other observers include Steve Benson, Carl Priebe, and Jim Priebe.	Iowa Ornithologists' Union \| MS 166	8	9
Records Committee review for rare bird sighting of Common Eider at Red Rock Reservoir, 1995	Administrative records Clippings (information artifacts) Correspondence Field notes Forms (documents) Photographs	Bird watching Ornithology Ornithology--Societies, etc	1995-01-27	2000-11-18	Rare birds documentation form	Records Committee review of a Common Eider at Red Rock Reservoir in Marion County, IA on January 27, 1995. Includes a record review document with votes, correspondence over the sighting, photos, drawings of the bird sighting, articles in Iowa Bird Life, Field Notes, and other publications, and twelve documentation forms submitted to the committee.	Dinsmore, Stephen J.	Common Eider	Red Rock Dam	Des Moines River below Red Rock dam - Marion Co., Iowa	open stretch of river	The documentation form by Stephen J. Dinsmore is the earliest and the one that forms the basis of this record. Other documentation forms by Jim Dinsmore, Thomas H. Kent, Jim Fuller, Reid Allen, Ann Johnson, Mark Proescholdt, Chris Edwards, Peter C. Petersen, Ray Cummins, Robert Cecil, and Diane Porter were submitted later. \| Elimination of similar species: See above discussion (Description). Steller's Eider eliminated by size. Female and immature King Eider eliminated by pattern of barring on flanks, size of bill, position of eye, faint white supercilium, and pattern of feathering on bill. Spectacled Eider eliminated by facial pattern and bill shape. \| The original documentation form event lasted from 13:45:00/15:05:00.	Iowa Ornithologists' Union \| MS 166	8	18
Records Committee review for rare bird sighting of Eurasian Wigeon at Ventura, 1992	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1992-03-18	1994-10-18	Rare birds documentation form	Records Committee review of a Eurasian Wigeon 4 miles south of Ventura in Cerro Gordo County, IA on March 18, 1992. Includes a record review document with votes, an Iowa Bird Life, and a documentation form submitted to the committee.	Pinkston, Randall, 1956-	Eurasian Wigeon	Ventura	County Roads B43 at S14, approx. 4 miles south of Ventura, Cerro Gordo Co., Iowa		The documentation form by Randall Pinkston is the earliest and the one that forms the basis of this record. \| Elimination of similar species: Obvious differences from American Wigeon include the American's dark (green) face mask, white forehead and crown ("baldpate"), as well as those other differences discussed above. Female American has finely mottled grayish head and brownish sides, lacks striking patterns on wings and hindparts. Redhead (Aythya americana) has 'pochard' gestalt with darker brick-red vs. cinnamon-buff head, head more rounded in profile, tricolored bill broad and stout. Also has relatively plain wing with gray coverts and pale gray remiges. Canvasback (Aythya valisineria) of either sex safely separable on the basis of head and bill in profile. Again, male's head is dark brick-red, back and sides whitish, lacks bold wing pattern. Female mergansers easily separable on the basis of bill alone. \| The original documentation form event occurred around 11:00:00.	Iowa Ornithologists' Union \| MS 166	8	14
Records Committee review for rare bird sighting of Eurasian Wigeon at Sweet Marsh, 1984	Administrative records Clippings (information artifacts) Field notes Forms (documents)	Bird watching Ornithology Ornithology--Societies, etc	1984-04-15	1993-09-01	Rare birds documentation form	Records Committee review of a Eurasian Wigeon at Sweet Marsh in Bremer County, IA on April 15, 1984. Includes a record review document with votes, an article in Iowa Bird Life, a summary of review, and eight documentation forms submitted to the committee.	Main, Stephen	Eurasian Wigeon	Sweet Marsh	Sweets Marsh, NW section, Tripoli, IA	Marsh - see above	The documentation form by Stephen Main is the earliest and the one that forms the basis of this record. Other documentation forms by Elaine Main, Francis L. Moore, Robert K. Myers, Thomas H. Kent, Thomas J. Staudt, Peter C. Petersen, and Carl J. Bendorf were submitted later. Other observers include Roberta Oppedahl and Lucille Liljedahl. \| Elimination of similar species: have previously seen American Wigeon, Shoveler (present this time) and Redhead. \| The original documentation form event lasted from 11:00:00/12:00:00.	Iowa Ornithologists' Union \| MS 166	8	14
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 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
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 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 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 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