Records Committee review for rare bird sighting of Ferruginous Hawk at Benton Township in Fremont County, 1989
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Administrative records Field notes
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Bird watching Ornithology Ornithology--Societies, etc
|
1989-01-17
|
1993-08-05
|
Rare birds documentation form
|
Records Committee review of a Ferruginous Hawk at Benton Township in Fremont County, IA on January 17, 1989. Includes a record review document with votes, field notes of the sighting, and a documentation form submitted to the committee.
|
Silcock, W. Ross
|
Ferruginous Hawk
|
Benton Township
|
Benton TWP, Fremont Co., IA.
|
Open Missouri riverbottom; soybean stubble fields
|
The documentation form by Ross Silcock is the only one submitted and forms the basis of this record. | Elimination of similar species: See attached discussion. (After writing my field notes at the site of observation and returning home later I found the stnadard field guides most unhelpful. Dunne et al's discussion of Ferruginous was tremendous, indicating variation in Ferruginous Hawks, and especially in discussion of flight characteristics, 'jizz', and behavior [...] The only possibility which is realistic to consider is Redtailed [sic] Hawk, or possibly Rough-legged Hawk. While similar in 'jizz' to a rough-leg (long tail, flight with 'crooked' (=osprey-like) wings, darker mottling underneath, longish wings), Roughleg can be eliminated by the following characters - absence of characteristic underwing pattern, including significant wrist mark (Ferruginous should show this to some extent according to Dunne et al, but I did not see it; remember I did not see the underparts well), and method of hunting-I have never seen a roughleg fly this low over the ground for this long (about a mile) - much lower and more consistently so than a harrier. Regarding elimination of Red-tail - I really think it is easier to eliminate Red-tail than rough-leg based on 'jizz'. The tail was too long, was never spread, and wings were long than Red-tail's. Tail pattern and 'three points of light' combination also is never seen on a Redtail [sic], especially when viewed from above. (The similarity to Roughleg [sic] in pattern can be seen in the front end paper in Dunne et al). Habitat and behavior also are important - while Redtails [sic] are very common in Fremont County, they are definitely not common on the open Missouri bottomlands. Redtail [sic] is a bird of edge habitat. I always look closely at any buteo seen from October to April on the open bottomlands. I have never seen any other buteo fly as low to the ground for as long as this bird - when i say low, I mean 1-2 ft above the ground. At no time was the bird higher than 6', and that was when perched on possibly the lowest post for some distance. Even a Harrier will rise and fall while hunting. This bird stayed low, in the manner of a hunting Golden Eagle (which I have seen in Western Kansas) - a point also mentioned by Dunne et al. Another point noted by Dunne et al and also shown in my sketch (purposely!) and, mentioned in my field notes was the osprey-like crook in the wings-while flying low over the ground. Dunne et al note that this is characteristic of a hunting Ferruginous. | The original documentation form event lasted from 15:30:00/15:45:00.
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Iowa Ornithologists' Union | MS 166
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9
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1
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Record Committee review for rare bird sighting of Ferruginous Hawk west of Conesville, 1989
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Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1989-04-29
|
1993-08-05
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Rare birds documentation form
|
Record Committee review of a Ferruginous Hawk west of Conesville on edge of Louisa and Muscatine County, IA on April 29, 1989. Includes a record review document with votes and a documentation form submitted to the committee.
|
Petersen, Peter C.
|
Ferruginous Hawk
|
Conesville
|
1 mi. W. conesville edge of Muscatine and Louise Cos., IA
|
cultivated fields
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Brian, Corey, and Lewis Blevins. | Elimination of similar species: Rough-legged hawk - underwing would show more dark in the underwing coverts, well defined tail band. Kriders Red-tail - has a very light head. | The original documentation form event lasted from 13:45:00/13:50:00.
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Iowa Ornithologists' Union | MS 166
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9
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1
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Records Committee review for rare bird sighting of Ferruginous Hawk at Paulina, 1989
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Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1989-06-03
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1993-08-05
|
Rare birds documentation form
|
Records Committee review of a Ferruginous Hawk at Paulina in O'Brien County, IA on June 3, 1989. Includes a record review document with votes and a documentation form submitted to the committee.
|
Bierman, Dick
|
Ferruginous Hawk
|
Paullina
|
5 miles North of Paulina Iowa OBrien [sic] Co.
|
Flat, Agricultural, only farm Groves for Trees
|
The documentation form by Dick Bierman is the only one submitted and forms the basis of this record. | Elimination of similar species: Swainson's Hawk have dark primaries. Red Tails with light tails have a terminal band. This one didn't. Red Tails do not have dark legs that are feathered to the ankle. | The original documentation form event lasted from 08:15:00/08:18:00 and 09:40:00 to 09:50:00.
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Iowa Ornithologists' Union | MS 166
|
9
|
1
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Records Committee review for rare bird sighting of Ferruginous Hawk at Princeton Marsh, 1990
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1990-05-08
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review of a Ferruginous Hawk at Princeton Marsh in Scott County, IA on May 8, 1990. Includes a record review document with votes and a documentation form submitted to the committee.
|
Petersen, Peter C.
|
Ferruginous Hawk
|
Princeton State Wildlife Management Area
|
Princeton Marsh, Scott Co., IA.
|
bird flying of marsh & agricultural area
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Brian Blevins and Don Moeller. | Elimination of similar species: Red-tailed Hawk no windows from above, legs white, has breast band, tail uniform rusty red. | The original documentation form event lasted from 13:30:00/13:32:00.
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Iowa Ornithologists' Union | MS 166
|
9
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1
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Records Committee review for rare bird sighting of Ferruginous Hawk at Thornton, 1991
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Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1991-04-23
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1993-07-17
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Rare birds documentation form
|
Records Committee review of a Ferruginous Hawk at Thornton in Cerro Gordo County, IA on April 23, 1991. Includes a record review document with votes and two documentation forms submitted to the committee.
|
Fischer, Carolyn J.
|
Ferruginous Hawk
|
Thornton
|
North of Thorton [sic] on Eagle Ave. between 140-150 roads - Cerro Gordo County, Ia
|
shortgrass meadows, open area -
|
The documentation form by Carolyn Fischer forms the basis of this record. Another documentation form was submitted by Rita Goranson. | Elimination of similar species: Krider's Hawk (this hawk was larger in size than a Krider's | The original documentation form event lasted from 18:15:00/18:30:00.
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Iowa Ornithologists' Union | MS 166
|
9
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1
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Records Committee review for rare bird sighting of Ferruginous Hawk at Ames, 1992
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1992-04-05
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1994-10-18
|
Rare birds documentation form
|
Records Committee review for a Ferruginous Hawk at Ames in Story County, IA on April 5, 1992. Includes a record review document with votes and a documentation form submitted to the committee.
|
Arbour, David
|
Ferruginous Hawk
|
Ames
|
At the intersection of I-35 and E29 () just N.E. of Ames:
|
Flat Farmland/Roadside
|
The documentation form by David Arbour is the only one submitted and forms the basis of this record. Other observers include Matt Humann, Harold Harbert, and Yumann Lee. | Elimination of similar species: Red-tailed Hawk lacks the white crescent near the base of primaries and is smaller and shorter winged. Rough-legged Hawk has a dark belly band and a subterminal band on tail. | The original documentation form event lasted for approximately 10 minutes during mid-morning.
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Iowa Ornithologists' Union | MS 166
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9
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1
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Records Committee review for rare bird sighting of Ferruginous Hawk south of Shenandoah, 1977
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Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1977-10-27
|
1994-02-03
|
Rare birds documentation form
|
Records Committee review of a Ferruginous Hawk south of Shenandoah in Page County, IA on October 27, 1977. Includes a record review document with votes, two articles in Iowa Bird Life, a transcription of the documentation form, and a documentation form submitted to the committee.
|
Phipps, Ruth O.
|
Ferruginous Hawk
|
Shenandoah
|
Six miles south of Shenandoah, Iowa - Highway No. 59
|
General: western great plains Specific: open grasslands and plains
|
The documentation form by Ruth O. Phipps is the only one submitted and forms the basis of this record. Other observers include Wayne Phipps. | Elimination of similar species: Red-tailed Hawk and Rough-legged. | The original documentation form event lasted from 13:30:00 and 14:30:00/14:45:00.
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Iowa Ornithologists' Union | MS 166
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9
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1
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Records Committee review for rare bird sighting of Ferruginous Hawk at both Oxford and Homestead, 1979
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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.
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Iowa Ornithologists' Union | MS 166
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9
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1
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Records Committee review for rare bird sighting of Ferruginous Hawk at Lee Township in Madison County, 1994
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Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1994-10-05
|
1996-04-25
|
Rare birds documentation form
|
Records Committee review for a Ferruginous Hawk at Lee Township in Madison County, IA on October 5, 1994. Includes a record review document with votes and a documentation form submitted to the committee.
|
Armstrong, Eloise
|
Ferruginous Hawk
|
Lee Township
|
Lee Twsp NE Madison County
|
Grasslands
|
The documentation form by Eloise Armstrong is the only one submitted and forms the basis of this record. Other observers include Eugene Armstrong. | Elimination of similar species: A redtailed Hawk has outer white tail band and Red or Barred Tail. Flight is quite rapid-wings are shorter and more rounded Has larger square window in wing Krider's Red Tail Does not have very white underwing. Has a larger square window Further out on wings. Has a dark stripe on tail. Doesn't have a white rump. | The original documentation form event lasted from 17:00:00/17:10:00.
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Iowa Ornithologists' Union | MS 166
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9
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1
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Records Committee review for rare bird sighting of Ferruginous Hawk at Port Louisa National Wildlife Refuge, 1995
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc Wildlife conservation
|
1995-03-22
|
2000-11-18
|
Rare birds documentation form
|
Records Committee review for a Ferruginous Hawk at Port Louisa National Wildlife Refuge in Louisa County, IA on March 22, 1995. Includes a record review document with votes, drawings of the bird, and a documentation form submitted to the committee.
|
Mattsson, James P
|
Ferruginous Hawk
|
Port Louisa National Wildlife Refuge - Louisa Division
|
Louisa Division of the Mark Twain National Wildlife Refuge near Wapello, Iowa.
|
|
The documentation form by James P. Mattsson is the only one submitted and forms the basis of this record. Other observers include Michael Bornstein. | Elimination of similar species: [...] The bird was most similar to the dark phase rough-legged hawk (Bureo lagopus) in size and general shape, but the latter species lacks the deep rust coloration on the upper wing coverts, scapulars, and upper back, and also has some dark banding on the outer one-half of the tail. Although by no means a conclusive characteristic, the subject bird did not hover during the period we observed it, a characteristic typical of hunting Rough-legged hawks. Dark phase Swainson's hawk have much darker, barred flight feathers and tail when viewed from below than that of the subject bird. | The original documentation form event lasted from 12:30:00/12:45:00.
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Iowa Ornithologists' Union | MS 166
|
9
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1
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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.
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Iowa Ornithologists' Union | MS 166
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9
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1
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Records Committee review for rare bird sighting of Ferruginous Hawk west of Ogden, 1998
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Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1998-08-09
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2000-11-24
|
Rare birds documentation form
|
Records Committee review of a Ferruginous Hawk west of Ogden in Boone County, IA on August 9, 1998. Includes a record review document with votes and a documentation form submitted to the committee.
|
Junck, Rodger
|
Ferruginous Hawk
|
Ogden
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1/4 mi. West of Ogden Iowa main street on gravel road at 'T' intersection by railroad tracks
|
Grassy rail road right of way bordered by corn/soybean fields
|
The documentation form by Rodger Junck is the only one submitted and forms the basis of this record. Other observers include unnamed sister. | Elimination of similar species: Most familiar with red-tails. I have had more than a dozen of them at a time circling my combine during harvest. Have seen them 'displaying' against each other over a rabbit as well. In fact, I see them most days - but they are considerably too small and, except for the Krider's, would be wrong color. I have no info on if Kriders have a white head and white feathery legs | The original documentation form event lasted from 09:30:00 - -09:35:00.
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Iowa Ornithologists' Union | MS 166
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9
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1
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Records Committee review for rare bird sighting of Ferruginous Hawk at Hichcock Nature Area, 1999
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Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1999-12-05
|
2000-11-28
|
Rare birds documentation form
|
Records Committee review of a Ferruginous Hawk at Hitchcock Nature Area in Pottawattamie County, IA on December 5, 1999. Includes a record review document with votes and a documentation form submitted to the committee.
|
Orsag, Mark
|
Ferruginous Hawk
|
Hitchcock Nature Area
|
Hitchcock Nature Area (Lodge Hawkwatch Point)
|
Loess Hills / Missouri River Valley. The bird was coming from out of the valley. It crossed the wooded ridges of HNA and headed southeast.
|
The documentation form by Mark Orsag is the earliest and the one that forms the basis of this record. | Elimination of similar species: I considered 5 other species of raptor in total. I eliminated two possibilities (Rough-legged Hawk and Northern Harrier) within seconds of seeing the bird in question. I eliminated two others (Bald Eagle [imm.], and Red-tailed Hawk more or less during the minute or so that I had the bird in view. **** ** I reviewed, in my head, the fine points of the Krider's Red-tailed Hawk for a few seconds after the bird had disappeared from view. The fifth species came to mind just before I started writing this report (the next day). I retroactively eliminated it. In reconstructing my reasoning, I believe: Rough-leg was eliminated due to the unmarked white throat, breast, underwings, and underside. Northern Harrier was eliminated due [sic] the large size and robust shape of the bird, the flight pattern (especially wingbeat), the unstreaked white throat, etc. Immature Swainson's Hawk later eliminated by dark head, white wing patches on primaries, lack of dark flight feathers on underwing, unlikelihood of December sighting. Bald Eagle immature- (whitebelly I-II) was eliminated by the downpushing wingbeat, the colors of the bird's dorsal surface, the lack of a contrast on the dorsal surface between the brown-gray forward part of the wing and the darker flight feathers (a little known good fieldmark for Immature BE), and the confining of the white coloration to the primaries, etc. Red-tailed Hawk-This species, in light of its similar (but smaller) size and variable plumages, posed the greatest problems. The dark upper surface, dark head, pointed wings, and pattern of flight (dihedral in glide posture), as well as the distinct and identical nature of the white markings on the upperwings and the lack of patagial marks, "commas", or other dark markings on the underside, were considered in total and used to rule out the immature light-morph Red-tail and, on reflection, a partial albino Red-tail. Krider's Red-tailed Hawk was the toughest to rule out. Here are my reasons: 1. Krider's heads appear white/light in contrast to the darker (gray or brown) color of the back. This bird's head was not lighter in color (on top) than the back. Back coloring was too dark (brown-reddish) for Krider's-no white mottling seen. Wings were pointed not rounded. No 'headlight' fieldmark [sic] was seen and the 'points of light' fieldmark [sic] was. Dihedral in glide unusual but not impossible for a Red-tail, but the wingbeat (fluid and downpushing rather than centered on the downstroke at the wrist) did not look like a Red-tailed's. | The original documentation form event lasted from 09:00:00/09:01:00.
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Iowa Ornithologists' Union | MS 166
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9
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1
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Records Committee review for rare bird sighting of Rough-legged Hawk south of Liscomb, 1996
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Administrative records Field notes
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Bird watching Ornithology Ornithology--Societies, etc
|
1996-05-30
|
2000-11-22
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Rare birds documentation form
|
Records Committee review of a Rough-legged Hawk south of Liscomb in Marshall County, IA on May 30 and 31, 1996. Includes a record review document with votes and a documentation form submitted to the committee.
|
Proescholdt, Mark
|
Rough-legged Hawk
|
Liscomb
|
South of Liscomb - (Marshall County)
|
corn field with new corn coming up and large field pond
|
The documentation form by Mark Proescholdt is the only one submitted and forms the basis of this record. Other observers include Beth Proescholdt at the May 30. 1996 sighting. | Elimination of similar species: I can't think of other buteos it could be with its tail pattern, head coloration, and broad dark band across belly. | The original documentation form event lasted from 17:30:00/18:50:00 on May 30, 1996 and 08:10:00/08:11:00 on May 31, 1996.
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Iowa Ornithologists' Union | MS 166
|
9
|
2
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Records Committee review for rare bird sighting of Merlin in southwest Chickasaw, 1990
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Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1990-06-03
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review of a Merlin in southwest Chickasaw County, IA on June 3, 1990. Includes a record review document with votes and a documentation form submitted to the committee.
|
Cecil, Robert I.
|
Merlin
|
Chickasaw County
|
S.W. Chickasaw Co.
|
Fence row in row-cropped ag. land
|
The documentation form by Robert Cecil is the only one submitted and forms the basis of this record. | Elimination of similar species: No other small falcon has uniform dark brown back and upper wing surface. It was much too small to be a female Peregrine. | The original documentation form event lasted from 15:45:00/15:45:05.
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Iowa Ornithologists' Union | MS 166
|
9
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3
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Records Committee review for rare bird sighting of Gyrfalcon north of Cone Marsh, 1986
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Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1986-12-28
|
1993-09-07
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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.
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Iowa Ornithologists' Union | MS 166
|
9
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4
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Records Committee review for rare bird sighting of Gyrfalcon north of Cambridge, 1991
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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
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4
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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
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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.
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Iowa Ornithologists' Union | MS 166
|
9
|
4
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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
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4
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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
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Lake Red Rock
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Red Rock Reservoir, Marion Co. above the dam
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flyover the ice
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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.
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Iowa Ornithologists' Union | MS 166
|
9
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4
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Records Committee review for rare bird sighting of Gyrfalcon at Grammer Grove Wildlife Area, 1996
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Administrative records Field notes
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Bird watching Ornithology Ornithology--Societies, etc
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1996-10-27
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2000-11-22
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Rare birds documentation form
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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.
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Proescholdt, Beth
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Gyrfalcon
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Grammer Grove County Wildlife Area
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Grammer Grove, Marshall County
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bluff paralleling Iowa River, wooded along river
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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.
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Iowa Ornithologists' Union | MS 166
|
9
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4
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Records Committee review for rare bird sighting of Peregrine Falcon at Ames, 1984
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Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1984-01-31
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1993-09-01
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Rare birds documentation form
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Records Committee review for a Peregrine Falcon at Ames in Story County, IA on January 31, 1984. Includes a record review document with votes, a summary of the review, and a documentation form submitted to the committee.
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Bostian, Kelly
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Peregrine Falcon
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Ames
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East side of Iowa State University Campus
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Tree top approximately 40-45 ft. east of Heady Hall (East Hall)
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The documentation form by Kelly Bostian is the only one submitted and forms the basis of this record. | Elimination of similar species: Prairie Falcon: Absence of dark terminal band on tail. | The original documentation form event lasted from 17:10:00/17:15:00.
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Iowa Ornithologists' Union | MS 166
|
9
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5
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Records Committee review for rare bird sighting of Peregrine Falcon at Ames, 1984
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Administrative records Correspondence Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1984-06-23
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1993-09-01
|
Rare birds documentation form
|
Records Committee review for a Peregrine Falcon at Ames in Story County, IA on June 23, 1984. Includes a record review document with votes, correspondence about the bird sighting, a summary of the review, and a documentation form submitted to the committee.
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Martsching, Paul
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Peregrine Falcon
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Ames
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Ames, Story County, Iowa
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General: I once saw a Prairie Falcon flying the same way in S. Dakota. Specific: in town (southwest of intersection of 13th & Grand)
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The documentation form by Paul Martsching is the only one submitted and forms the basis of this record. | Elimination of similar species: Prairie Falcon, not overall tannish. Marsh Hawk, no white rump, wings too dark below, wings too pointy | The original documentation form event lasted from 18:20:00/18:21:00.
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Iowa Ornithologists' Union | MS 166
|
9
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5
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Records committee review for rare bird sighting of Prairie Falcon at De Soto National Wildlife Refuge, 1980
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Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1980-03-15
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1993-08-16
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Rare birds documentation form
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Records Committee review for a Prairie Falcon at De Soto National Wildlife Refuge in Harrison County, IA on March 15, 1980. Includes a record review document with votes and a documentation form submitted to the committee.
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Cummins, Raymond L.
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Prairie Falcon
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DeSoto National Wildlife Refuge
|
1 mile east of De Sota [sic] NWR, Missouri Valley, Iowa
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General: Missouri River bottom land 1 mile east of Desota [sic] Bends NWR Specific: Flat open farm land - except for road ditches + occasional narrow fence rows.
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The documentation form by Raymond L. Cummins is the only one submitted and forms the basis of this record. Other observers include Wally Jardine and Thaine Hopkins. | Elimination of similar species: The sparrow hawk and pigeon hawk are eliminated by the large size. The Peregrine Falcon by the light brown top side. | The original documentation form event lasted from 08:22:00/08:27:00.
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Iowa Ornithologists' Union | MS 166
|
9
|
6
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