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 Sharp-tailed Sandpiper at Casey Barrow Access, 1995	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1995-10-13	2000-11-20	Rare birds documentation form	Records Committee review for a Sharp-tailed Sandpiper at Casey Barrow Access in Des Moines County, IA on October 13, 1995. Includes a record review document with votes and a documentation form with an appendix submitted to the committee.	Fuller, Charles R. Rutenbeck, John	Sharp-tailed Sandpiper	Casey Barrow Landing	Sandbar in Mississippi R. at Casey Barrow Access, ID Mis. N. of Burlington	Shallow Water, Sand, Low Vegetation	The documentation form by John Rutenbeck and Chuck Fuller is the only one submitted and forms the basis of this record. \| Elimination of similar species: [...] The bird in question was feeding along the sand/grass edge of the river along with a definate [sic] Pectoral Sandpiper (Several-perhaps up to 4), and an immediate difference was apparent. Those differences were: 1) An over-all buffier (tanner or browner) color. 2) Light buffy chest that ended like a Pectoral but not a streaked-abrupt bib like Pectoral 3) Definite white eye brow 4) What appeared to be a dark brown cap on top of head. Over-all size and shape similar to Pectoral Sandpiper. \| The original documentation form event lasted from 15:30:00/17:00:00.	Iowa Ornithologists' Union \| MS 166	10	4
Iowa field reports, spring 1997, June 10, 1997	Field notes	Bird feeders Bird watching Birdsongs Ornithology--Societies, etc Parulidae \| Warblers Birds--Infancy Emberizidae \| Sparrows	1997-06-10	N/A	Manuscript, graphic, and printed material	A list of bird sightings organized by species, June 10, 1997. The list also contains the number of birds seen, date of sighting, location, and observer of each species. This item was used as supporting documentation for the Iowa Ornithologists’ Union Quarterly field report of spring 1997.	Iowa Ornithologists' Union	Common Grackle Blue-headed Vireo Rose-breasted Grosbeak Nelson's Sharp-tailed Sparrow Smith's Longspur Clay-colored Sparrow Western Kingbird Eastern Wood-Pewee Ruby-crowned Kinglet Swainson's Thrush Hermit Thrush Blue-winged Warbler Orange-crowned Warbler Prothonotary Warbler Blackburnian Warbler Mourning Warbler Western Meadowlark Red Crossbill	Iowa				Iowa Ornithologists' Union \| MS 166	27	4
Iowa field reports, spring 1997, June 10, 1997	Field notes	Bird watching Birdsongs Ornithology--Societies, etc Birds--Infancy	1997-06-10	N/A	Manuscript, graphic, and printed material	A list of bird sightings organized by species, June 10, 1997. The list also contains the number of birds seen, date of sighting, location, and observer of each species. This item was used as supporting documentation for the Iowa Ornithologists’ Union Quarterly field report of spring 1997.	Iowa Ornithologists' Union	Yellow-bellied Sapsucker Marbled Godwit White-winged Dove Franklin's Gull Wilson's Phalarope Hudsonian Godwit Sanderling Pectoral Sandpiper Common Snipe Common Nighthawk Pileated Woodpecker Bonaparte's Gull Common Tern American Golden Plover	Iowa				Iowa Ornithologists' Union \| MS 166	27	4
Iowa field reports, spring 1997, June 10, 1997	Field notes	Bird watching Birds--Counting Birds--Nests Ornithology--Societies, etc Birds--Infancy	1997-06-10	N/A	Manuscript, graphic, and printed material	A list of bird sightings organized by species, June 10, 1997. The list also contains the number of birds seen, date of sighting, location, and observer of each species. This item was used as supporting documentation for the Iowa Ornithologists’ Union Quarterly field report of spring 1997.	Iowa Ornithologists' Union	Swainson's Hawk Cooper's Hawk American Bittern Eared Grebe Cinnamon Teal Ross' Goose Common Loon Greater Scaup Peregrine Falcon Greater White-fronted Goose Sandhill Crane	Iowa				Iowa Ornithologists' Union \| MS 166	27	4
Iowa Ornithologists' Union, Quarterly field report, spring 1997	Field notes	Bird watching Birds--Research Ornithology--Societies, etc Weather	1997-03-01	1997-05-31	Manuscript, graphic, and printed material	Quarterly field report for the spring of 1997 compiled by Thomas H. Kent.	Kent, Thomas H. (Thomas Hugh), 1934- Iowa Ornithologists' Union	Vermilion Flycatcher Western Tanager Chestnut-collared Longspur White-winged Dove Black-billed Magpie Lazuli Bunting Pacific Loon Barnacle Goose Black-necked Stilt Iceland Gull Great Gray Owl Black-throated Gray Warbler	Iowa				Iowa Ornithologists' Union \| MS 166	27	4
Iowa, spring 1997 documentations, June 11, 1997	Field notes	Bird watching Birds--Counting Birds--Research Ornithology--Societies, etc Birds--Infancy	1997-06-11	N/A	Manuscript, graphic, and printed material	A list of documented bird sightings organized by species, June 11, 1997. The list also contains the number of birds seen, date of sighting, location, and observer of each species. This item was used as supporting documentation for the Iowa Ornithologists’ Union Quarterly field report of spring 1997.	Iowa Ornithologists' Union	Mississippi Kite Red-throated Loon Western Tanager Rose-breasted Grosbeak Townsend's Solitaire Chestnut-collared Longspur Smith's Longspur White-winged Dove Black-billed Magpie Lazuli Bunting Yellow-throated Warbler Pacific Loon Barnacle Goose Trumpeter Swan Iceland Gull Black-throated Gray Warbler Pine Warbler	Iowa				Iowa Ornithologists' Union \| MS 166	27	4
Christmas bird count data report and W. Ross Silcock note to Thomas H. Kent, winter 1987-1988	Correspondence Field notes	Birds--Research Ornithology--Methodology Ornithology--Societies, etc	1987-12-01	1988-02-28	Manuscript, graphic, and printed material	Christmas bird count data report compiled by W. Ross Silcock includes species count totals by county, suggested report format changes and a compilation of species observed and recorded as "write-ins." This item was used as supporting documentation for the Iowa Ornithologists Union Quarterly field report of winter 1987-1988.	Silcock, W. Ross		Iowa				Iowa Ornithologists' Union \| MS 166	23	4
Additional field notes from the Spirit Lake Christmas bird count compiled by Douglas C. Harr, December 19, 1987	Field notes	Bird watching Birds--Identification Birds--Research Ornithology--Societies, etc	1987-12-19	N/A	Manuscript, graphic, and printed material	The field notes include additional information about the Christmas bird count held in Spirit Lake on December 19, 1987. The report includes a list of participants, and notes about rare or unusual species. This item was used as supporting documentation for the Iowa Ornithologists Union Quarterly field report of winter 1987-1988.	Harr, Douglas C.	Cooper's Hawk Field Sparrow Common Loon Osprey Mallard	Spirit Lake West Okoboji Lake				Iowa Ornithologists' Union \| MS 166	23	4
James P. Sandrock letter to James J. Dinsmore regarding a weather report, July 4, 1986	Correspondence	Bird watching Ornithology--Societies, etc Weather	1986-07-04	N/A	Manuscript, graphic, and printed material	James P. Sandrock letter to James J. Dinsmore regarding his willingness to compile a weather report for summer 1986. The letter also mentions some recent birding trips he has taken. This item was used as supporting documentation for the Iowa Ornithologists Union Quarterly field report of summer 1986.	Sandrock, James P., 1929-		Iowa				Iowa Ornithologists' Union \| MS 166	22	4
James P. Sandrock letter to James J. Dinsmore regarding a weather report, July 31, 1986	Correspondence Field notes Reports	Bird watching Ornithology--Societies, etc Weather	1986-07-31	N/A	Manuscript, graphic, and printed material	Letter from James P. Sandrock to James J. Dinsmore regarding his weather report for June and July 1986. The attached weather report notes above average temperatures and precipitation in June, his sighting of a Black-headed Grosbeak and his recent birding trips. This item was used as supporting documentation for the Iowa Ornithologists Union Quarterly field report of summer 1986.	Sandrock, James P., 1929-	Black-headed Grosbeak	Iowa Lacey-Keosauqua State Park				Iowa Ornithologists' Union \| MS 166	22	4
List of names of Iowa birders	Checklists	Bird watchers Ornithology--Societies, etc	1986-06-01	1986-07-31	Manuscript, graphic, and printed material	List of names of individuals who routinely submit field reports for the Iowa Ornithologists' Union quarterly field report. This item was used as supporting documentation for the Iowa Ornithologists Union Quarterly field report of summer 1986.			Iowa				Iowa Ornithologists' Union \| MS 166	22	4
Records Committee review for rare bird sighting for Lazuli Bunting at Glenwood, 1997	Administrative records Clippings (information artifacts) Field notes Photographs	Bird watching Ornithology Ornithology--Societies, etc	1997-05-27	2000-11-24	Rare birds documentation form	Records Committee review for a Lazuli Bunting at Glenwood at Mills County, IA on May 27, 1997. Includes a record review document with votes, photographs, an article in Field Notes, an article in Iowa Bird Life, and a documentation form submitted to the committee.	Kent, Thomas H. (Thomas Hugh), 1934-	Lazuli Bunting	Glenwood	54452 Highway 275, north of Glenwood, Mills Co., IA	Rural home in Loess Hills with multiple feeders and ground feed.	The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. \| Elimination of similar species: none. \| The original documentation form event lasted from 09:00:00/11:00:00.	Iowa Ornithologists' Union \| MS 166	14	4
Records Committee review for rare bird sighting for Lazuli Bunting at Mason City, 1997	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1997-05-18	2000-11-24	Rare birds documentation form	Records Committee review for a Lazuli Bunting at Mason City in Cerro Gordo County, IA on May 18, 1997. Includes a record review document with votes and a documentation form submitted to the committee.	Montgomery, Ellen S.	Lazuli Bunting	Mason City	Cerro Gordo County, Portland Township, Sec 31 (13675 Spruce Ave Mason City IA)	Deciduous woodland edge	The documentation form by Ellen S. Montgomery is the only one submitted and forms the basis of this record. Another observer was Steve A. Olson. \| Elimination of similar species: Smaller than Eastern Bluebird. Had blue throat and wing bars. \| The original documentation form event lasted from 11:15:00/11:25:00 on May 18th, 08:30:00/08:40:00 on May 19th, 07:20:00/07:25:00 and 18:25:00/18:28:00 on May 20th, 07:30:00/07:35:00 on May 21, and 07:00:00/07:06:00 on May 22.	Iowa Ornithologists' Union \| MS 166	14	4
Records Committee review for rare bird sighting of Fulvous Whistling-Duck at Goose Lake, 1994	Administrative records Field notes Photographs	Bird watching Ornithology Ornithology--Societies, etc	1994-07-17	1996-04-25	Rare birds documentation form	Records Committee review for a Fulvous Whistling-Duck at Goose Lake in Clinton County, IA on July 17, 1994. Includes a record review document with votes, two photos and ten documentation forms submitted to the committee.	Dinsmore, Stephen J.	Fulvous Whistling-Duck	Goose Lake	Goose Lake, Clinton Co., IA	shallow marsh	The documentation form by Stephen J. Dinsmore is the earliest and the one that forms the basis of this record. Other documentation forms by Susan Barrell Grove, Peter C. Petersen, Mark Proescholdt, Beth Proescholdt, Jim Fuller, Thomas H. Kent, Pam Allen and Reid Allen, Jeff Dankert, and Ann Johnson were submitted later. Other observers include Russ Widner, Kelly McKay, Tim Schantz, Gerald White, Eloise Armstrong, Eugene Armstrong, and Fred Lesher. \| Elimination of similar species: The long legs, upright posture, and long neck were clearly features of a whistling-duck. The extensive rufous color on the belly, dark back edged with tawny, lack of any white on the upperwing, and dark bill and legs eliminate Black-bellied Whistling-Duck. \| The original documentation form event lasted from 13:30:00/14:10:00.	Iowa Ornithologists' Union \| MS 166	8	4
Records Committee review for rare bird sighting of Sharp-tailed Sandpiper at Riverton Wildlife Management Area, 1994	Administrative records Correspondence Field notes Photographs	Bird watching Ornithology Ornithology--Societies, etc	1994-05-15	1996-04-25	Rare birds documentation form	Records Committee review of a Sharp-tailed Sandpiper at Riverton Wildlife Management Area in Fremont County, IA on May 15, 1994. Includes a record review document with votes, correspondence about the bird sighting, seven photographs and photocopies of them, and a documentation form submitted to the committee.	Silcock, W. Ross	Sharp-tailed Sandpiper	Riverton Wildlife Management Area	Riverton GMA, Fremont County		The documentation form by Ross Silcock is the only one submitted and forms the basis of this record. Other observers include B.J. Rose, Roger Rose, and Doug Rose. \| Elimination of similar species: [...] It resembled a Pectoral Sandpiper, but differed in the following ways: the crown was streaked, and showed noticeable rufous coloration in the feathering; the off-white superciliary stripe was lengthy and broadened towards the rear; the breast markings were dense as in a Pectoral but did not show a clearcut ending at the whitish belly, but instead ended indeterminately by gradually fading out. [...] Once ready to record, we flushed the bird and it gave a soft series of notes, somewhat like a Lesser Yellowlegs, but rather flat and unmelodious. This call was most unlike the harsh, grating call of a Pectoral Sandpiper. [...] Plumage, time of year, call upon flushing, and key plumage differences from Pectoral Sandpiper, cited above, led us to identify this bird as an adult Sharp-tailed Sandpiper. \| The original documentation form event occurred around 10:30:00.	Iowa Ornithologists' Union \| MS 166	10	4
Records Committee review for rare bird sighting of Sharp-tailed Sandpiper at Coralville Reservoir, 1990	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1990-10-14	1993-07-17	Rare birds documentation form	Records Committee review of a Sharp-tailed Sandpiper at Coralville Reservoir in Johnson County, IA on October 14, 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-	Sharp-tailed Sandpiper	Coralville Lake	w. of Greencastle corner, Coralville Res., Johnson Co., Iowa	wet marshy area with low vegetation and mud flats.	The documentation form by Thomas H. Kent forms the basis of this record. Other documentation forms by Ann Johnson, Jim Fuller, Carol Thompson, and Randy Pinkston were submitted. Other observers include Jane Huntington, James Huntington, Jim Sandrock, John Cordell, John Daniel, Mary Noble, Ken Lowder, and Tim Schantz. \| Elimination of similar species: The only other species worthy of consideration is Pectoral Sandpiper. The most distinctive feature is the plain, cinnamon-buff breast without bib line or streaking centrally. The soft breast color shaded off evenly to the lower belly and throat. Some pectorals had very week [sic] breast markings, but on close inspection all had streaks and a sharp bib line. The solid rusty cap differed from any pectorals; some pectorals appeared a bit rusty on the cap, but some streaking was seen on such individuals. The eye line appeared white, and it dropped and widened posteriorly. Some pectorals had light eye lines but they were off-white, less distinct, and straighter. The juvenile feathers of the upper parts were edged with rufous; this was especially prominent on the tertials. Some pectorals appeared to have rusty edging on the tertials, but this was dependent on lighting and at least one rufous appearing pectoral had the color more in the center of the feathers with grayer edging. The gray smudging on the undertail coverts I saw once and only had a glance at a nearby pectoral for comparison, so I am not very confident of this mark. \| The original documentation form event lasted from 09:20:00/09:25:00, 09:55:00/10:00:00, and intermittently 16:15:00/17:00:00.	Iowa Ornithologists' Union \| MS 166	10	4
Records Committee review for rare bird sighting of Sharp-tailed Sandpiper at Credit Island, 1988	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1988-09-30	1993-08-04	Rare birds documentation form	Records Committee review of a Sharp-tailed Sandpiper at Credit Island in Scott County, IA on September 30, 1988. Includes a record review document with votes, an article in Iowa Bird Life, and two documentation forms submitted to the committee.	Petersen, Peter C.	Sharp-tailed Sandpiper	Credit Island	Credit Island Harbor seen from S. Concord St., Davenport, Scott Co	mud flat on Miss.	The documentation form by Peter C. Petersen forms the basis of this record. Another documentation form by Brian Blevins was submitted later. \| Elimination of similar species: Pectoral Sandpipers, available side-by-side, were slightly larger, legs & bill a bit longer than Sharp-tailed. White eyebrow on Pectorals did not broaden behind eye cap not as richly colored in Pectorals. Pectorals had streaking across buff breast wash uniformly to lower edge of buff. Back of Sharp-tailed seemed more uniformly rich brown than those of the Pectorals. Birds all departed downstream on Miss. before photos could be attempted. \| The original documentation form event lasted from 15:50:00/15:55:00.	Iowa Ornithologists' Union \| MS 166	10	4
Records Committee review for rare bird sighting of Sharp-tailed Sandpiper northwest of Iowa City, 1974	Administrative records Clippings (information artifacts) Correspondence Field notes	Bird watching Ornithology Ornithology--Societies, etc	1974-10-03	1999-04-02	Rare birds documentation form	Records Committee review for a Sharp-tailed Sandpiper northwest of Iowa City in Johnson County, IA on October 3, 1974. Includes a record review document with votes, two articles in Iowa Bird Life, correspondence about the sighting, and a documentation form submitted to the committee.	Halmi, Nicholas S.	Sharp-tailed Sandpiper	Johnson County	County road 0, about 15 miles NWW of Iowa City, Iowa	General: puddle in mudflat Specific: shallow water and mud, with sparse clumps of grass	The documentation form by Nicholas Halmi is the only one submitted and forms the basis of this record. \| Elimination of similar species: Pectoral Sandpiper. good juxtaposition. Diff.: chestnut crown, breast spotting much finer, mostly on sides only, no sharp line of demarcation downwards \| The original documentation form event lasted from 14:10:00/14:30:00.	Iowa Ornithologists' Union \| MS 166	10	4
Records Committee review for rare bird sighting of Gyrfalcon at Grammer Grove Wildlife Area, 1996	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1996-10-27	2000-11-22	Rare birds documentation form	Records Committee review of a Gyrfalcon at Grammer Grove Wildlife Area in Marshall County, IA on October 27, 1996. Includes a record review document with votes and two documentation forms submitted to the committee.	Proescholdt, Beth	Gyrfalcon	Grammer Grove County Wildlife Area	Grammer Grove, Marshall County	bluff paralleling Iowa River, wooded along river	The documentation form by Beth Proescholdt is the earliest and the one that forms the basis of this record. Other documentation forms by Mark Proescholdt were submitted later. Other observers include Eugene Armstrong, Eloise Armstrong, Russ Widner, and Jackie Stolzman. \| Elimination of similar species: Goshawk, Harrier, other hawks (see in description). \| The original documentation form event occurred between 13:00:00/14:00:00.	Iowa Ornithologists' Union \| MS 166	9	4
Records Committee review for rare bird sighting of Gyrfalcon at Red Rock Reservoir, 1995	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1995-01-02	2000-11-18	Rare birds documentation form	Records Committee review for a Gyrfalcon at Red Rock Reservoir in Marion County, IA on January 2, 1995. Includes a record review document with votes and a documentation form submitted to the committee.	Kenne, Matthew C.	Gyrfalcon	Lake Red Rock	Red Rock Reservoir, Marion Co. above the dam	flyover the ice	The documentation form by Matthew Kenne is the only one submitted and forms the basis of this record. \| Elimination of similar species: The lack of facial pattern and white throat and chest rule out peregrine, as the bird was flying almost directly into the sun (perpendicular to me). It wasn't as pale or brown as a prairie, and with shadow and distance there wasn't any dark/light pattern to the underwing. It wasn't black as a crow + the shape was wrong. Eagles were patterned and obviously larger. \| The original documentation form event occurred around 13:10:00.	Iowa Ornithologists' Union \| MS 166	9	4
Records Committee review for rare bird sighting of Gyrfalcon in Hanover Township in Crawford County, 1993	Administrative records Correspondence Field notes	Bird watching Ornithology Ornithology--Societies, etc	1993-10-17	1995-07-08	Rare birds documentation form	Records Committee review for a Gyrfalcon at Hanover Township in Crawford County, IA on October 17, 1993. Includes a record review document with votes, a letter about reporting the sighting from Jim Fuller to Dan Eiten on October 29, 1993, and a documentation form submitted to the committee.	Eiten, Dan	Gyrfalcon	Hanover Township	Hanover Twp Crawford County IA 6 1/2 NW Denison	Near Bean field on Field Fencepost	The documentation form by Dan Eiten is the only one submitted and forms the basis of this record. Other observers include Arlan Gierstorf. \| The original documentation form event occurred around 14:00:00.	Iowa Ornithologists' Union \| MS 166	9	4
Records Committee review for rare bird sighting of Gyrfalcon at Kettleson Hogsback, 1993	Administrative records Clippings (information artifacts) Field notes	Bird watching Ornithology Ornithology--Societies, etc	1993-09-25	1995-07-08	Rare birds documentation form	Records Committee review for a Gyrfalcon at Kettleson Hogsback in Dickinson County, IA on September 25, 1993. Includes a record review document with votes, an article in Iowa Bird Life, and five documentation forms submitted to the committee.	Schantz, Tim	Gyrfalcon	Kettleson Hogsback Wildlife Management Area	East of Kettleson Hogback entrance, Dickenson [sic] Co., Iowa		The documentation form by Tim Schantz is the earliest and the one that forms the basis of this record. Other documentation forms by Maridel Jackson, Ross Silcock, Jane R. Clark, and Jim Sinclair were submitted later. Other observers include John Cecil, Eugene Armstrong, and Eloise Armstrong. \| Elimination of similar species: Northern Goshawk- Although Goshawks have been known to show pointed wings, they are never as pointed as a Falcon's. I have seen many Northern Goshawks and jizz alone would rule this one out. I saw no barring on the tail. One of the prime field marks on a Goshawk are the bright white undertail coverts which this bird did not have. The bird in question also lacked a dark crown. Peregrine Falcon- Size. No dark helmet. Jizz (mentioned above). The bird lacked overall contrast of a Peregrine Falcon. Juveniles would be brown. Prairie Falcon- Color. Prairies are a brown bird in all plumages. The underwing was uniform with no black axillaries. Habitat. Prairies feed almost exclusively on small mammals. \| The original documentation form event occurred around 15:30:00.	Iowa Ornithologists' Union \| MS 166	9	4
Records Committee review for rare bird sighting of Gyrfalcon at Bettendorf, 1992.	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1992-01-20	1994-10-18	Rare birds documentation form	Records Committee review of a Gyrfalcon at Bettendorf in Scott County, IA on January 20, 1992. Includes a record review document with votes and a documentation form submitted to the committee.	Timper, Edward	Gyrfalcon	Bettendorf	Devils Glen & Middle Road, Bettendorf, Hwy Z30 & Indiana Ave, Rural Scott Cty.	Residential with fields, and rural farm area with picked fields	The documentation form by Edward Timper is the only one submitted and forms the basis of this record. \| Elimination of similar species: I am a master falconer, and have handled and flown many large falcons, including gyrfalcons, peregrines, prairie falcons, and large exotics such as saker falcons and lanners. I am positive that this is a gerfalcon [sic]. \| The original documentation form event lasted from 13:45:00/15:15:00.	Iowa Ornithologists' Union \| MS 166	9	4
Records Committee review for rare bird sighting of Gyrfalcon north of Cambridge, 1991	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1991-12-14	1993-07-17	Rare birds documentation form	Records Committee review of a Gyrfalcon north of Cambridge in Story County, IA on December 14, 1991. Includes a record review document with votes and a documentation form submitted to the committee.	Cook, Barnett C.	Gyrfalcon	Cambridge	2 mi north of Cambridge, Story County	open	The documentation form by Barney Cook is the only one submitted and forms the basis of this record. Other observers include Fritz Franzen and Stu Huntington. \| The original documentation form event occurred around 15:00:00.	Iowa Ornithologists' Union \| MS 166	9	4
Records Committee review for rare bird sighting of Gyrfalcon north of Cone Marsh, 1986	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1986-12-28	1993-09-07	Rare birds documentation form	Records Committee review of a Gyrfalcon north of Cone Marsh in Louisa County, IA on December 28, 1986. Includes a record review document with votes, a summary of the review, and a documentation form submitted to the committee.	Dwyer, Timothy L.	Gyrfalcon	Cone Marsh Wildlife Management Area	About 1/2 mile North of Cone Marsh on Hwy G-28 in Louisa Co., Iowa	Open country, scattered small trees, weedy fence rows.	The documentation form by Timothy L. Dwyer is the only one submitted and forms the basis of this record. \| Elimination of similar species: Prairie Falcon is smaller, browner + has black axillars. Peregrine Falcon is smaller, has more pointed wings and has a much more distinctive head pattern. Goshawk's head pattern is different, is whiter below in gray plumage and has shorter wings. Northern Harrier is smaller, also has a white rump and holds wings in a dihedral, this bird didn't. \| The original documentation form event lasted from approximately 15:00:00/15:03:00.	Iowa Ornithologists' Union \| MS 166	9	4