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 Northern Goshawk at Hastings, 1983	Field notes	Birds--Identification Ornithology Rare birds	1983-11-26	1983-11-29	Rare birds documentation form	Rare bird documentation form for a Northern Goshawk at the John Wilson farm in Hastings in Mills County, IA on November 26, 1983.	Wilson, Barbara L.	Northern Goshawk	Hastings	John Wilson farm, NE Mills County, Ia.		The documentation form by Barbara L. Wilson is the only one submitted and forms the basis of this record. \| Elimination of similar species: Tail too long + flight too quick + direct for a Red-tail. Wings rounded - not a falcon. Young accipiter (+ many buteos) would be streaked below. Adult accipiters of other kinds would be barred below, but reddish or brown, not gravy. Marsh Hawk would fly with a more leisurely pace + have longer wings. As I saw it, identifications went clicking through my brains one after another. Red tail? No.. Marsh Hawk! - No ... Coopers Hawk! Yes - no - its gray! I certainly did not expect a Goshawk.	Iowa Ornithologists' Union \| MS 166	33	25
Rare bird documentation form for Northern Goshawk at Sweet Marsh in 1982	Field notes	Birds--Identification Ornithology Rare birds	1982-11-14	1982-11-21	Manuscript, graphic, and printed material	Rare bird documentation form for a Northern Goshawk at Sweet Marsh in Bremer County, IA on November 14, 1982.	Myers, Robert K.	Northern Goshawk	Sweet Marsh				Iowa Ornithologists' Union \| MS 166	33	25
Rare bird documentation form for Northern Goshawk at Sweet Marsh, 1982	Field notes	Birds--Identification Ornithology Rare birds	1982-11-14	N/A	Rare birds documentation form	Rare bird documentation form for a Northern Goshawk at Sweet Marsh in Bremer County, IA on November 14, 1982.	Moore, Francis L.	Northern Goshawk	Sweet Marsh	Sweet Marsh near Tripoli, Bremer Co., Iowa	White pine planting on North side of Marsh, SW of rangers residence	The documentation form by Francis L. Moore is the only one submitted and forms the basis of this record. Other observers include Bob Myers. \| Elimination of similar species: Coopers Hawk does not have a white stripe above its eye and I have never seen a Coopers with fluffy undertail coverts. Red-tailed Hawk does not have the coloration this hawk had. \| The original documentation form event lasted from 16:40:00/16:45:00.	Iowa Ornithologists' Union \| MS 166	33	25
Rare bird documentation form for Northern Goshawk at Sweet Marsh, 1983	Field notes	Birds--Identification Ornithology Rare birds	1983-11-11	1983-11-25	Rare birds documentation form	Rare bird documentation form for a Northern Goshawk at Sweet Marsh in Bremer County, IA on November 11, 1983.	Myers, Robert K.	Northern Goshawk	Sweet Marsh	Sweet Marsh - Bremer Co.	Evergreen Grove	The documentation form by Robert K. Myers is the only one submitted and forms the basis of this record. \| Elimination of similar species: Imm. Cooper's. \| The original documentation form event lasted from 09:30:00/09:31:00.	Iowa Ornithologists' Union \| MS 166	33	25
Rare bird documentation form for Northern Goshawk at Sweet Marsh, 1984	Field notes	Birds--Identification Ornithology--Societies, etc Rare birds	1984-01-22	N/A	Rare birds documentation form	Rare bird documentation form for a Northern Goshawk at Sweet Marsh in Bremer County, IA on January 22, 1984.	Moore, Francis L.	Northern Goshawk	Sweet Marsh	3 mi. S. of Sweet Marsh, Bremer Co.	Open field edge along Wapsipinicon River	The documentation form by Francis L. Moore is the only one submitted and forms the basis of this record. Other observers include Bob Myers. \| Elimination of similar species: Cooper's Hawk does not have wide, bold, white eyestripe or fluffy undertail coverts. Sharp-shinned Hawk is a lot smaller than this bird was. \| The original documentation form event lasted from 08:30:00/08:35:00.	Iowa Ornithologists' Union \| MS 166	33	25
Rare bird documentation form for Northern Goshawk at Sweet Marsh, 1984	Field notes	Birds--Identification Ornithology--Societies, etc Rare birds	1984-02-15	1984-02-16	Rare birds documentation form	Rare bird documentation form for a Northern Goshawk at Sweet Marsh in Bremer County, IA on February 15, 1984.	Proescholdt, Beth	Northern Goshawk	Sweet Marsh	northeast Bremer Co, road just east of Sweet Marsh	from trees along marsh, over farmland	The documentation form by Beth Proescholdt is the only one submitted and forms the basis of this record. Other observers include Mark Proescholdt and Bob Myers. \| Elimination of similar species: Cooper's Hawk - too large for that; other hawk (buteos or harrier) - not that because of accipiter shape + flight. \| The original documentation form event lasted from 13:08:00/13:12:00.	Iowa Ornithologists' Union \| MS 166	33	25
Rare bird documentation form for Northern Goshawk at Sweet Marsh, 1998	Field notes	Birds--Identification Ornithology Rare birds	1998-12-19	N/A	Rare birds documentation form	Rare bird documentation form for a Northern Goshawk at Sweet Marsh in Bremer County, IA on December 19, 1998.	Moore, Francis L.	Northern Goshawk	Sweet Marsh	South side of Sweet Marsh, near Tripoli, Bremer County, Iowa	Open freshwater marsh with a few dead trees and stumps above water line	The documentation form by Francis L. Moore is the only one submitted and forms the basis of this record. Other observers include Bob Cecil. \| Elimination of similar species: Large size eliminates sharp-shinned and Cooper's Hawks and Merlin. The broad white eye stripe eliminates all others. \| The original documentation form event lasted from 11:07:00/11:12:00.	Iowa Ornithologists' Union \| MS 166	33	25
Rare bird documentation form for Northern Goshawk at Sweet Marsh, 1981	Field notes	Birds--Identification Ornithology Rare birds	1981-12-19	1981-12-26	Rare birds documentation form	Rare bird documentation form for a Northern Goshawk at Sweet Marsh in Bremer County, IA on December 19, 1981.	Myers, Robert K.	Northern Goshawk	Sweet Marsh	Sweet Marsh (Bremer County)	River bottom Timber at south edge of marsh	The documentation form by Robert K. Myers is the only one submitted and forms the basis of this record. Other observers include Russell Hays, Eleanor Corvin, and Antoinette Camarata. \| Elimination of similar species: The shape + size made the choice either goshawk or coopers hawk and the white crescent over the eye made the choice goshawk. \| The original documentation form event lasted from 12:30:00/12:30:00.	Iowa Ornithologists' Union \| MS 166	33	25
Rare bird documentation form for Northern Goshawk at Sweet Marsh, 1981	Field notes	Birds--Identification Ornithology Rare birds	1981-12-19	1982-01-01	Rare birds documentation form	Rare bird documentation form for a Northern Goshawk at Sweet Marsh in Bremer County, IA on December 19, 1981.	Hays, Russell	Northern Goshawk	Sweet Marsh	Sweet Marsh (south side), Bremer County, Ia.	River bottom timber	The documentation form by Russell Hays is the only one submitted and forms the basis of this record. Other observers include Eleanor Corvin, Antoinette Camarata, and Bob Myers. \| Elimination of similar species: Imm. Cooper's would not show eye stripe. \| The original documentation form event lasted from 11:20:00/11:30:00.	Iowa Ornithologists' Union \| MS 166	33	25
Rare bird documentation form for Northern Goshawk at Sweet Marsh in 1983	Field notes	Birds--Identification Ornithology Rare birds	1983-04-16	1983-04-23	Manuscript, graphic, and printed material	Rare bird documentation form for a Northern Goshawk at Sweet Marsh in Bremer County, IA on April 16, 1983.	Myers, Robert K.	Northern Goshawk	Sweet Marsh				Iowa Ornithologists' Union \| MS 166	33	25
Rare bird documentation form for Northern Goshawk at Sweet Marsh, 1983	Field notes	Birds--Identification Ornithology Rare birds	1983-04-16	1983-04-18	Rare birds documentation form	Rare bird documentation form for a Northern Goshawk at Sweet Marsh in Bremer County, IA on April 16, 1983.	Moore, Francis L.	Northern Goshawk	Sweet Marsh	North part of Sweet marsh, Bremer Co., near dam	Open marsh near dam and dike with river bottom forest near-by	The documentation form by Francis L. Moore is the only one submitted and forms the basis of this record. Other observers include Bob Myers and Russell Hays. \| Elimination of similar species: Cooper's Hawk does not have a white stripe above the eye. \| The original documentation form event lasted from 11:00:00/11:02:00.	Iowa Ornithologists' Union \| MS 166	33	25
Rare bird documentation form for Northern Goshawk at Sweet Marsh, 1982	Field notes	Birds--Identification Ornithology Rare birds	1982-04-10	1982-04-17	Rare birds documentation form	Rare bird documentation form for a Northern Goshawk at Sweet Marsh in Bremer County, IA on April 10, 1982.	Myers, Robert K.	Northern Goshawk	Sweet Marsh	Sweet Marsh - Bremer County	Edge of timber bordering the marsh	The documentation form by Robert K. Myers is the only one submitted and forms the basis of this record. Other observers include Francis Moore and Russell Hays. \| Elimination of similar species: Cooper's Hawk was eliminated by color - bird was dark blue-gray above and clear light gray, not streaked or reddish, below. Bird also had broad eye stripe. \| The original documentation form event lasted from 09:00:00/09:05:00.	Iowa Ornithologists' Union \| MS 166	33	25
Rare bird documentation form for Northern Goshawk at Sweet Marsh, 1982	Field notes	Birds--Identification Ornithology Rare birds	1982-04-10	1982-04-11	Rare birds documentation form	Rare bird documentation form for a Northern Goshawk at Sweet Marsh in Bremer County, IA on April 10, 1982.	Moore, Francis L.	Northern Goshawk	Sweet Marsh	Sweet Marsh, Bremer Co.	Marsh (at South side of the marsh)	The documentation form by Francis L. Moore is the only one submitted and forms the basis of this record. Other observers include Bob Myers. \| Elimination of similar species: Cooper's Hawk does not appear as large or does not appear to have as long a tail as this bird did. Cooper's Hawks does not have the white fluffy undertail coverts, either. \| The original documentation form event occurred around 8:15:00.	Iowa Ornithologists' Union \| MS 166	33	25
Rare bird documentation form for Northern Goshawk at Seven Bridges Park, 1981	Field notes	Birds--Identification Ornithology Rare birds	1981-11-21	N/A	Rare birds documentation form	Rare bird documentation form for a Northern Goshawk at Seven Bridges Park in Bremer County, IA on November 21, 1981.	Myers, Robert K.	Northern Goshawk	Seven Bridges County Park	Seven Bridges Park - Bremer County	Wooded river bottom timber along Wapsipinicon Riv. Tree where hawk was sitting is tallest in area- the park has several openings in the timber all visible from this perch	The documentation form by Robert K. Myers is the only one submitted and forms the basis of this record. Other observers include Francis Moore. \| Elimination of similar species: Coopers is only species I can see any trouble with but size and color and broad white eye stripe make the choice easy. \| The original documentation form event lasted from 09:45:00/09:50:00.	Iowa Ornithologists' Union \| MS 166	33	25
Rare bird documentation form for Northern Goshawk at Seven Bridges County Park in 1981	Field notes	Birds--Identification Ornithology Rare birds	1981-11-21	1981-11-26	Manuscript, graphic, and printed material	Rare bird documentation form for a Northern Goshawk at Seven Bridges County Park in Bremer County, IA on November 21, 1981.	Moore, Francis L.	Northern Goshawk	Seven Bridges County Park				Iowa Ornithologists' Union \| MS 166	33	25
Rare bird documentation form for Northern Goshawk at Saylorville Reservoir, 1986	Field notes	Birds--Identification Ornithology Rare birds	1986-11-06	1986-11-08	Rare birds documentation form	Rare bird documentation form for a Northern Goshawk at Saylorville Reservoir in Polk County, IA on November 6, 1986.	Dinsmore, Stephen J.	Northern Goshawk	Saylorville Lake	Saylorville Reservoir, Polk Co.	flying over dam	The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. \| Elimination of similar species: The larger size, gray underparts, and white undertail coverts eliminate both Sharp-shinned and Cooper's hawks. \| The original documentation form event occurred around 14:55:00.	Iowa Ornithologists' Union \| MS 166	33	25
Rare bird documentation form for Northern Goshawk at Saylorville Reservoir, 1985	Field notes	Birds--Identification Ornithology Rare birds	1985-03-10	N/A	Rare birds documentation form	Rare bird documentation form for a Northern Goshawk at Saylorville Reservoir in Polk County, IA on March 10, 1985.	Dinsmore, Stephen J.	Northern Goshawk	Saylorville Lake	Saylorville Reservoir, Polk Co.	large area of deciduous trees adjacent to reservoir	The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. \| Elimination of similar species: Other accipiters by lack of large size, extensive white above eye on the head and lack of clear gray/white underparts. \| The original documentation form event lasted from 16:45:00/16:50:00.	Iowa Ornithologists' Union \| MS 166	33	25
Rare bird documentation form for Northern Goshawk at Sandy Beach in Johnson County, 1982	Field notes	Birds--Identification Ornithology Rare birds	1982-12-18	N/A	Rare birds documentation form	Rare bird documentation form for a Northern Goshawk at Sandy Beach in Johnson County, IA on December 18, 1982.	Staudt, Thomas J.	Northern Goshawk	Sandy Beach Public Use Area	Northeast Johnson County near Sandy Beach	Deciduous wood open rolling fields	The documentation form by Tom Staudt is the only one submitted and forms the basis of this record. Other observers include Jim Sandrock and John Cordell. \| Elimination of similar species: White eye strip and size eliminate other accipiters. Falcons eliminated by short rounded, almost oval wing shape. \| The original documentation form event occurred around 11:55:00.	Iowa Ornithologists' Union \| MS 166	33	25
Rare bird documentation form for Northern Goshawk at Saint Ansgar in 1982	Field notes	Birds--Identification Ornithology Photography of birds Rare birds Wildlife conservation Wildlife rehabilitation	1982-09-22	1982-10-01	Manuscript, graphic, and printed material	Rare bird documentation form for a Northern Goshawk at Saint Ansgar in Mitchell County, IA on September 22, 1982. There is an attached note from James Hansen to Thomas Kent dated October 1, 1982 regarding a photography of the bird.	Hansen, James L.	Northern Goshawk	Saint Ansgar				Iowa Ornithologists' Union \| MS 166	33	25
Rare bird documentation form for Northern Goshawk at Rockwell, 1997	Field notes	Birds--Identification Ornithology Rare birds	1997-10-16	1997-11-27	Rare birds documentation form	Rare bird documentation form for a Northern Goshawk at Rockwell in Cerro Gordo County, IA on October 16, 1997.	Goranson, Rita	Northern Goshawk	Rockwell	2 miles so of Rockwell, Ia on Hwy 65 Cerro Gordo Co.	field - stubble creek near	The documentation form by Rita Goranson is the only one submitted and forms the basis of this record. \| Elimination of similar species: not a peregrine as darker area horizontal through eye - not a vertical streak. \| The original documentation form event occurred around 12:35:00.	Iowa Ornithologists' Union \| MS 166	33	25
Rare bird documentation form for Northern Goshawk at Rigby Farm in Laurens, 1983	Field notes	Birds--Identification Ornithology Rare birds	1983-04-14	N/A	Rare birds documentation form	Rare bird documentation form for a Northern Goshawk at Rigby Farm, Laurens in Pocahontas County, IA on April 14, 1983.	Rigby, Joyce	Northern Goshawk	Laurens	Rigby Farm,	Farm grove, shrubbry in backyard	The documentation form by Joyce Rigby is the only one submitted and forms the basis of this record. Other observers include Dick Rigby. \| The original documentation form event lasted from 12:00:00/12:15:00.	Iowa Ornithologists' Union \| MS 166	33	25
Rare bird documentation form for Northern Goshawk at Red Rock Reservoir, 1984	Field notes	Birds--Identification Ornithology--Societies, etc Rare birds	1984-03-18	1984-03-22	Rare birds documentation form	Rare bird documentation form for a Northern Goshawk at Red Rock Reservoir in Marion County, IA on March 18, 1984.	Thompson, Dennis	Northern Goshawk	Lake Red Rock	North edge of Red Rock Res. Marion County	Pinegrove of 4 or 5 acres on north side of Red Rock Res. Thick grove of pines 30-40 ft. tall.	The documentation form by Dennis Thompson is the only one submitted and forms the basis of this record. \| Elimination of similar species: Much larger than Cooper's or Sharp-shinned. Silver-gray coloration eliminated buteos. \| The original documentation form event lasted from 13:00:00/13:05:00 approximately.	Iowa Ornithologists' Union \| MS 166	33	25
Rare bird documentation form for Northern Goshawk at Red Rock Reservoir, 1981	Field notes	Birds--Identification Ornithology Rare birds	1981-02-06	N/A	Rare birds documentation form	Rare bird documentation form for a Northern Goshawk at Red Rock Reservoir in Marion County, IA on February 6, 1981.	Thornburg, Robert E.	Northern Goshawk	Lake Red Rock	Red Rock Res. - south end of Robert's Creek Park	a very open area between a bay of Red Rock and Robert's Creek Lake - grass - 6-8" high	The documentation form by Robert E. Thornburg is the only one submitted and forms the basis of this record. \| Elimination of similar species: The size and head markings eliminated Cooper's and Sharp-shinned Hawks. Female Marsh Hawk by head and lack of Rump Patch (over). Imm. Red-tailed by the heavy streaks over the entire breast, the much longer tail and head markings. \| The original documentation form event lasted from 09:30:00/09:40:00.	Iowa Ornithologists' Union \| MS 166	33	25
Rare bird documentation form for Northern Goshawk at Red Rock Dam, 1984	Field notes	Birds--Identification Ornithology Rare birds	1984-11-25	N/A	Rare birds documentation form	Rare bird documentation form for a Northern Goshawk at Red Rock Dam in Marion County, IA on November 25, 1984.	Sinclair, Jim	Northern Goshawk	Red Rock Dam	Tailwater area - Red Rock Dam	Deciduous bottomland	The documentation form by Jim Sinclair is the only one submitted and forms the basis of this record. Other observers include David Youngblut and Paul Felsing. \| Elimination of similar species: accipiter shape - rounded wings, long tail, strong direct flight - wing shape and tail length eliminated buteo - size was too great for Coopers. \| The original documentation form event occurred around 08:30:00.	Iowa Ornithologists' Union \| MS 166	33	25
Rare bird documentation form for Northern Goshawk at Pleasantville, 1983	Field notes	Birds--Identification Ornithology Rare birds	1983-01-07	N/A	Rare birds documentation form	Rare bird documentation form for a Northern Goshawk at Pleasantville in Marion County, IA on January 7, 1983.	Thornburg, Robert E.	Northern Goshawk	Pleasantville	4 miles S.W. of Pleasantville Marion County	Pine Grove ~ 5 acres ; trees ~ 25 feet tall	The documentation form by Robert Thornburg is the only one submitted and forms the basis of this record. \| Elimination of similar species: Coopers Hawk could not have been so large or had the head markings. The head and bright red eyes and size left little doubt as to the birds identity. \| The original documentation form event lasted from 09:30:00/09:35:00.	Iowa Ornithologists' Union \| MS 166	33	25