Documents • Iowa State University • Avian Archives of Iowa Online

Title	Genres	Topics	Date (Start)	Date (End)	Type	Description	Creator/Author	Birds	Locations	Locality	Habitat	Remarks

Rare bird documentation form for Prairie Falcon east of Wall Lake, 1996	Field notes	Birds--Identification Ornithology Rare birds	1996-03-12	1996-06-02	Rare birds documentation form	Rare bird documentation form for a Prairie Falcon east of Wall Lake in Sac County, IA on March 12, 1996.	Thelen, Rob	Prairie Falcon	Wall Lake	1 m. East of Wall Lake	Gravel pits, Railroad Tracks, and Farmland	The documentation form by Rob Thelen is the only one submitted and forms the basis of this record. Other observers include Natasha Thelen. \| Elimination of similar species: Merlin - was to [sic] big to be a Merlin didn't have strong tail bars. Peregrine - didn't have strong face marks or cap on head. \| The original documentation form event lasted from 16:30:00/17:15:00.	Iowa Ornithologists' Union \| MS 166	33	35
Rare bird documentation form for Prairie Falcon east of Reinbeck, 1989	Field notes	Birds--Identification Ornithology Rare birds	1989-02-27	N/A	Rare birds documentation form	Rare bird documentation form for a Prairie Falcon east of Reinbeck in Blackhawk County, IA on February 27, 1989.	Fuller, James L	Prairie Falcon	Reinbeck	4 1/2 miles east of Reinbeck - Black Hawk Co.	Silo - open farmland	The documentation form by Jim Fuller is the only one submitted and forms the basis of this record. Other observers include Jim Scheib. \| Elimination of similar species: Peregrine - Facial pattern adult - no black axillary areas & darkness of back. \| The original documentation form event lasted from 06:34:00/06:40:00.	Iowa Ornithologists' Union \| MS 166	33	35
Rare bird documentation form for Prairie Falcon east of Reinbeck, 1989	Field notes	Birds--Identification Ornithology Rare birds	1989-02-26	1989-02-27	Rare birds documentation form	Rare bird documentation form for a Prairie Falcon east of Reinbeck in Black Hawk County, IA on February 26, 1989.	Proescholdt, Beth	Prairie Falcon	Reinbeck	Black Hawk County - 4 1/2 miles east of Reinbeck on #175	open farmland, unused silos beside busy road	The documentation form by Beth Proescholdt is the only one submitted and forms the basis of this record. Other observers include Mark Proescholdt, Dennis Thompson, Cecille Thompson, Reid Allen, Pam Allen, Eugene Armstrong, and Eloise Armstrong. \| Elimination of similar species: Peregrine - the bird we saw was very light brown, had a thin mustache stripe & not a Peregrine's wider sideburn, & it had dark axillars as well as underwing coverts. \| The original documentation form event lasted from 17:10:00/17:45:00.	Iowa Ornithologists' Union \| MS 166	33	35
Rare bird documentation form for Prairie Falcon east of Reinbeck, 1989	Field notes	Birds--Identification Ornithology Rare birds	1989-03-01	1989-04-01	Rare birds documentation form	Rare bird documentation form for a Prairie Falcon east of Reinbeck in Black Hawk County, IA on March 1, 1989.	Johnson, Ann	Prairie Falcon	Reinbeck	4 miles e. Reinbeck, Black Hawk County, IA	Farmstead with silos, open fields	The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. Other observers include Beth Brown, Mark Proescholdt, Beth Proescholdt, Chuck Fuller, Cal Knight, and Bernie Knight. \| Elimination of similar species: Other hawks were eliminated by the long, pointed wings and general body shape. Size eliminated all falcons but the peregrine, but the presence of the black axillars confirmed that this was indeed a Prairie Falcon. \| The original documentation form event lasted from 17:56:00/18:28:00.	Iowa Ornithologists' Union \| MS 166	33	35
Rare bird documentation form for Prairie Falcon east of Lost Island Lake, 1993	Field notes	Birds--Identification Ornithology Rare birds	1993-04-03	1993-04-07	Rare birds documentation form	Rare bird documentation form for a Prairie Falcon east of Lost Island Lake in Palo Alto County, IA on April 3, 1993.	Kent, Thomas H. (Thomas Hugh), 1934-	Prairie Falcon	Lost Island Lake	East of Lost Island Lake, Clay County [actually Palo Alto County], Iowa	farmland near glacial lakes	The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Other observers include Lee Schoenewe, Bob Cecil, and Harold White. \| Elimination of similar species: This was the best view I have ever had at the underwing of Prairie Falcon. \| The original documentation form event lasted from 17:45:00/18:00:00.	Iowa Ornithologists' Union \| MS 166	33	35
Rare bird documentation form for Prairie Falcon east of Lester, 1984	Field notes	Birds--Identification Ornithology Rare birds	1984-03-09	N/A	Rare birds documentation form	Rare bird documentation form for a Prairie Falcon east of Lester in Lyon County, IA on March 9, 1984.	Harr, Douglas C.	Prairie Falcon	Lester	2 miles east of Lester, Lyon County, along state highway #9	Seen along open, unplowed fields in NW Iowa plains. Sitting on fence post along field/highway edge.	The documentation form by Douglas C. Harr is the only one submitted and forms the basis of this record. \| Elimination of similar species: Peregrine falcon--Prairie falcon observed had lighter breast, finer (thinner) moustache, no horizontal bars on breast, barring absent on undersides of wings. \| The original documentation form event lasted from 14:02:00/14:03:00.	Iowa Ornithologists' Union \| MS 166	33	35
Rare bird documentation form for Prairie Falcon east of Irvington, 1988	Field notes	Birds--Identification Ornithology Rare birds	1988-10-23	N/A	Rare birds documentation form	Rare bird documentation form for a Prairie Falcon east of Irvington in Kossuth County, IA on October 23, 1988.	Kenne, Matthew C.	Prairie Falcon	Irvington	2 mi E of Irvington, Kossuth Co. Ia	open, harvested fields	The documentation form by Matthew Kenne is the only one submitted and forms the basis of this record. Other observers include Karla Kenne. \| Elimination of similar species: Bird did not have dark color of Peregrine's back, dark cap, or heavy 'sideburns'. Did not have the heavy barring on the underside of the tail like the Merlin. Dark axillaries and dark bar on underwing are features of no other raptor, falcon or other wise. \| The original documentation form event lasted from 18:00:00/18:30:00.	Iowa Ornithologists' Union \| MS 166	33	35
Rare bird documentation form for Prairie Falcon east of Hawarden, 1990	Field notes	Birds--Identification Ornithology Rare birds	1990-11-23	N/A	Rare birds documentation form	Rare bird documentation form for a Prairie Falcon east of Hawarden in western Sioux County, IA on November 23, 1990.	Van Dyk, John, 1936-	Prairie Falcon	Hawarden	some five miles east of Hawarden in western Sioux County.		The documentation form by John Van Dyk is the only one submitted and forms the basis of this record. \| The original documentation form event occurred in the morning.	Iowa Ornithologists' Union \| MS 166	33	35
Rare bird documentation form for Prairie Falcon between Treynor and Carson, 1995	Field notes	Birds--Identification Ornithology Rare birds	1995-03-03	1995-03-04	Rare birds documentation form	Rare bird documentation form for a Prairie Falcon between Treynor and Carson in Pottawattamie County, IA on March 3, 1995.	Kent, Thomas H. (Thomas Hugh), 1934-	Prairie Falcon	Treynor Carson	between Treynor and Carson on highway 92, Pottawattamie Co., IA	gently rolling hills; small stream with scattered trees.	The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Other observers include Jim Fuller and Dick Tetrault. \| Elimination of similar species: The falcon shape was clear to us. The bird was flying directly into a strong southwest wind, but I don't think an accipiter's wing could be that pointed even in a strong wind. The bird was too large and plain to be a kestrel and the flight pattern and behavior were unlike any of the many kestrels seen that day. The light color and open farmland habitat favor Prairie over Peregrine. A Merlin would be smaller and darker. However, I would not have identified this bird as to species with out seeing the underwing pattern. \| The original documentation form event occurred at approximately 12:00:00.	Iowa Ornithologists' Union \| MS 166	33	35
Rare bird documentation form for Prairie Falcon at Worth Township in Boone County, 1982	Field notes	Birds--Identification Ornithology Rare birds	1982-02-20	N/A	Rare birds documentation form	Rare bird documentation form for a Prairie Falcon at Worth Township in Boone County, IA on February 20, 1982.	Martin, Kevin	Prairie Falcon	Worth Township	R. 26 T83 Sec. 12 NENE	open field	The documentation form by Kevin Martin is the only one submitted and forms the basis of this record. Other observers include Carol Martin. \| Elimination of similar species: Kestrel and Peregrine do not have the black arm pits or brown back. to [sic] large for a Kestrel. \| The original documentation form event occurred around 13:10:00.	Iowa Ornithologists' Union \| MS 166	33	35
Rare bird documentation form for Prairie Falcon at Union Slough National Wildlife Refuge, 1993	Field notes	Birds--Identification Ornithology Rare birds	1993-10-29	1993-10-31	Rare birds documentation form	Rare bird documentation form for a Prairie Falcon at Union Slough National Wildlife Refuge in Kossuth County, IA on October 29, 1993.	Kent, Thomas H. (Thomas Hugh), 1934-	Prairie Falcon	Union Slough National Wildlife Refuge	Union Slough N.W.R., Kossuth Co., IA	long narrow slough	The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. \| Elimination of similar species: The underwing markings and apparent light coloration argue against Peregrine Falcon. The date and location are appropriate for Prairie Falcon in Iowa. \| The original documentation form event lasted from 16:50:00/17:00:00.	Iowa Ornithologists' Union \| MS 166	33	35
Rare bird documentation form for Prairie Falcon at Twelve Mile Lake Township in Emmet County, 1982	Field notes	Birds--Identification Ornithology Rare birds	1982-01-27	N/A	Rare birds documentation form	Rare bird documentation form for a Prairie Falcon at Twelve Mile Lake Township in Emmet County, IA on January 27, 1982.	Moats, Robert Moats, Barb	Prairie Falcon	Twelve Mile Lake Township	SE 1/4 Sec. 6 T98N-R34W Twelve Mile Lake Township		The documentation form by Bob and Barb Moats is the only one submitted and forms the basis of this record. \| Elimination of similar species: Peregrin [sic] Falcon. \| The original documentation form event lasted from 12:35:00/12:50:00.	Iowa Ornithologists' Union \| MS 166	33	35
Rare bird documentation form for Prairie Falcon at the junction of Interstate 29 and U.S. 30 west of Missouri Valley in 1981	Field notes	Birds--Identification Ornithology Rare birds	1981-10-10	1981-10-31	Manuscript, graphic, and printed material	Rare bird documentation form for a Prairie Falcon at the junction of Interstate 29 and U.S. 30 west of Missouri Valley in Harrison County, IA on October 10, 1981.	Schaufenbuel, Joseph P.	Prairie Falcon	Interchange 75				Iowa Ornithologists' Union \| MS 166	33	35
Rare bird documentation form for Prairie Falcon at Swan Wildlife Refuge, 1991	Field notes	Birds--Identification Ornithology Rare birds	1991-10-27	N/A	Rare birds documentation form	Rare bird documentation form for a Prairie Falcon at Swan Wildlife Refuge in Marion County, IA on October 27, 1991.	Johnson, Ann	Prairie Falcon	Swan Wildlife Refuge	Swan Wildlife Refuge, Warren County [incorrect county], IA	Overlook of river bottom, waterfowl refuge	The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. \| Elimination of similar species: The pointed wings and powerful, direct flight identified the bird as a falcon. Size eliminated all but the more likely Peregrine. The pale color and narrow facial markings with light supercilliary all but eliminated the Peregrine. The brief look at the black on the underwing confirmed this. \| The original documentation form event lasted from 15:50:00/15:51:00.	Iowa Ornithologists' Union \| MS 166	33	35
Rare bird documentation form for Prairie Falcon at St. Joseph's Hospital (abandoned) in Sioux City, 1997	Field notes	Birds--Identification Ornithology Rare birds	1997-12-18	1998-01-02	Rare birds documentation form	Rare bird documentation form for a Prairie Falcon at St. Joseph's Hospital (abandoned) in Sioux City in Woodbury County, IA on December 18, 1997.	Huser, Bill F.	Prairie Falcon	St. Joseph Hospital (historical)	St. Joseph's Hospital (abandoned), Sioux City, Woodbury, IA	tall brick buildings with broken windows providing roosting sites for hundreds of Rock Doves. Numerous perches and open space for flight.	The documentation form by Bill Huser is the only one submitted and forms the basis of this record. Other observers include Jerry Probst and Bob Moritz. \| Elimination of similar species: The distinct tear marks eliminated all hawks but falcons and also eliminated the Merlin. Long wings, relative to the tail, and body size eliminated Gyrfalcon. Size and direct comparison eliminated Kestrel. Lack of dark "helmet" eliminated Peregrine Falcon. \| The original documentation form event lasted from 16:45:00/16:50:00.	Iowa Ornithologists' Union \| MS 166	33	35
Rare bird documentation form for Prairie Falcon at St. Johns Township in Harrison County, 1981	Field notes	Birds--Identification Ornithology Rare birds	1981-10-10	1981-10-11	Rare birds documentation form	Rare bird documentation form for a Prairie Falcon at St. Johns Township in Harrison County, IA on October 10, 1981.	Robinson, John C., 1959-	Prairie Falcon	Township of Saint John	1 mile west of Missouri Valley, Iowa; Harrison Co., St. Johns Twsp., Sect. 17.	Open agricultural land; few trees; Winter wheat field (growth of winter what less than 4 inches tall).	The documentation form by John C. Robinson is the only one submitted and forms the basis of this record. Other observers include Joe Schaufenbuel. \| Elimination of similar species: Peregrine Falcon: this species lacks black axillars and white superciliary stripe; moustache is thicker on this species. Merlin: this species is much smaller and lacks moustache and black facial pattern. Gyrfalcon: this species is larger and lacks superciliary stripe and black axillars. \| The original documentation form event lasted from 15:50:00/16:50:00.	Iowa Ornithologists' Union \| MS 166	33	35
Rare bird documentation form for Prairie Falcon at Sioux Center, 1982	Field notes	Birds--Identification Ornithology Rare birds	1982-02-06	N/A	Rare birds documentation form	Rare bird documentation form for a Prairie Falcon at Sioux Center in Sioux County, IA on February 6, 1982.	Van Dyk, John, 1936-	Prairie Falcon	Sioux Center	approximately three miles south-west of Sioux Center (Sioux Co.)		The documentation form by John Van Dyk is the only one submitted and forms the basis of this record. Other observers include John Kevin. \| The original documentation form event occurred around 09:00:00.	Iowa Ornithologists' Union \| MS 166	33	35
Rare bird documentation form for Prairie Falcon at Saylorville Reservoir, 1988	Field notes	Birds--Identification Ornithology Rare birds	1988-10-14	1988-10-16	Rare birds documentation form	Rare bird documentation form for a Prairie Falcon at Saylorville Reservoir in Polk County, IA on October 14, 1988.	Dinsmore, Stephen J.	Prairie Falcon	Jester Park Saylorville Lake	Saylorville Reservoir, Polk Co.-along river channel north of Jester Park	flying back and forth along river channel	The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. Other observers include Bery Engebretsen. \| Elimination of similar species: The large size, wing shape, and dark axillaries eliminates all other falcons. \| The original documentation form event lasted from 09:25:00/09:36:00.	Iowa Ornithologists' Union \| MS 166	33	35
Rare bird documentation form for Prairie Falcon at Saylorville Dam, 1989	Field notes	Birds--Identification Ornithology Rare birds	1989-11-03	1989-11-04	Rare birds documentation form	Rare bird documentation form for a Prairie Falcon at Saylorville Dam in Polk County, IA on November 3, 1989.	Fuller, James L	Prairie Falcon	Saylorville Dam	Dam-Saylorville Reservoir- Polk County	Dam face - Adjacent to water - fly by	The documentation form by Jim Fuller is the only one submitted and forms the basis of this record. Other observers include Cal Knight. \| Elimination of similar species: Merlin is smaller with blue-gray coloration in adult but has no black axillaries in any plumage. Peregrine Falcon does not have black axillaries and coloration from above is darker in all plumages. \| The original documentation form event lasted from 09:45:00/09:45:20.	Iowa Ornithologists' Union \| MS 166	33	35
Rare bird documentation form for Prairie Falcon at Ringgold Wildlife Area, 1988	Field notes	Birds--Identification Ornithology Rare birds	1988-04-22	1988-06-03	Rare birds documentation form	Rare bird documentation form for a Prairie Falcon at Ringgold Wildlife Area in Ringgold County, IA on April 22, 1988.	Petersen, Peter C.	Prairie Falcon	Ringgold State Wildlife Area	Ringold [sic] Wildlife Area, Ringold [sic] Co. IA	Overgrown pasture with scattered wooded areas.	The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Gil Sandvick. \| Elimination of similar species: Peregrine Falcon - would lack black axillaries, facial marking would be darker. Merlin - much smaller, facial markings much less distinct, lacks black axillaries. \| The original documentation form event lasted from 18:10:00/18:15:00.	Iowa Ornithologists' Union \| MS 166	33	35
Rare bird documentation form for Prairie Falcon at Red Rock Reservoir, 1988	Field notes	Birds--Identification Ornithology Rare birds	1988-02-06	1988-02-08	Rare birds documentation form	Rare bird documentation form for a Prairie Falcon at Red Rock Reservoir in Marion County, IA on February 6, 1988.	Dinsmore, Stephen J.	Prairie Falcon	Lake Red Rock	Red Rock Reservoir, Marion Co.-near north Elk Rock State Park	perched in dead trees over ice	The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. Other observers include Bart Ballard. \| Elimination of similar species: The large size eliminates American Kestrel and Merlin. The black axillaries, dark whisker, and light crown eliminate Peregrine Falcon and Gyrfalcon \| The original documentation form event lasted from 16:18:00/17:05:00.	Iowa Ornithologists' Union \| MS 166	33	35
Rare bird documentation form for Prairie Falcon at northern Fremont County, 1977	Field notes	Birds--Identification Ornithology Rare birds	1977-10-16	1977-10-20	Rare birds documentation form	Rare bird documentation form for a Prairie Falcon at northern Fremont County, IA on October 16, 1977.	Silcock, W. Ross	Prairie Falcon	Fremont County	northern Fremont Co.	river-bottom farmland, partly harvested corn & bean fields beside west Nishnabotna River	The documentation form by W. Ross Silcock is the only one submitted and forms the basis of this record. \| Elimination of similar species: Immature Peregrine - does not have dark axillars & underwing linings. Adult Peregrine - is grey above, not brown. Female Am. Kestrel - not as large, no dark axillars. \| The original documentation form event lasted from 10:00:00/10:05:00.	Iowa Ornithologists' Union \| MS 166	33	35
Rare bird documentation form for Prairie Falcon at Marshalltown, 1990	Field notes	Birds--Identification Ornithology Rare birds	1990-04-04	1990-04-13	Rare birds documentation form	Rare bird documentation form for a Prairie Falcon at Marshalltown in Marshall County, IA on April 4, 1990.	Proescholdt, Beth	Prairie Falcon	Marshalltown	Marshalltown, Iowa	Hyvee parking lot !!	The documentation form by Beth Proescholdt is the only one submitted and forms the basis of this record. \| Elimination of similar species: Not a Merlin because it wasn't dark underneath with strongly barred tail - only a Prairie Falcon because of its dark axillars & underwing coverts. \| The original documentation form event lasted from 11:25:00/11:26:00.	Iowa Ornithologists' Union \| MS 166	33	34
Rare bird documentation form for Prairie Falcon at Liscomb, 1989	Field notes	Birds--Identification Ornithology Rare birds	1989-02-15	1989-02-27	Rare birds documentation form	Rare bird documentation form for a Prairie Falcon at Liscomb in Marshall County, IA on February 15, 1989.	Proescholdt, Mark	Prairie Falcon	Liscomb	in Liscomb - (Marshall County)	small town	The documentation form by Mark Proescholdt is the only one submitted and forms the basis of this record. \| Elimination of similar species: A Peregrine is darker colored and lacks the dark axillars. A Merlin is smaller and has a barred tail. \| The original documentation form event lasted from 09:00:00/09:01:20.	Iowa Ornithologists' Union \| MS 166	33	35
Rare bird documentation form for Prairie Falcon at junction of U.S. Route 30 and Interstate 29 in 1981	Field notes	Birds--Identification Ornithology Rare birds Wildlife conservation	1981-10-10	1981-10-31	Manuscript, graphic, and printed material	Rare bird documentation form for a Prairie Falcon at junction of U.S. Route 30 and Interstate 29 west of Missouri Valley in Harrison County, IA on October 10, 1981.	Schaufenbuel, Joseph P.	Prairie Falcon	Interchange 75				Iowa Ornithologists' Union \| MS 166	33	35