|
Records Committee review for rare bird sighting of Black-legged Kittiwake in Saylorville Reservoir, 1995
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1995-11-19
|
2000-11-20
|
Rare birds documentation form
|
Records Committee review of a Black-legged Kittiwake in Saylorville Reservoir in Polk County, IA on November 19, 1995. Includes a record review document with votes and two documentation forms submitted to the committee.
|
Dinsmore, Stephen J.
|
Black-legged Kittiwake
|
Saylorville Lake
|
Saylorville Res., Polk Co.
|
large lake
|
The documentation form by Stephen J. Dinsmore forms the basis of this record. Another documentation form by Jim Dinsmore was submitted. Other observers include Dennis Thompson, Bery Engebretsen, Bob Myers, Pam Allen, Reid Allen, and Maridel Jackson. | Elimination of similar species: The size, striking wing and tail patterns, black half-collar, and dark bill and legs are distinctive of this species. | The original documentation form event lasted from 09:00:00/09:45:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
10
|
|
Records Committee review for rare bird sighting of Black-legged Kittiwake in Waterloo, 1997
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1997-12-21
|
2000-11-24
|
Rare birds documentation form
|
Records Committee review of a Black-legged Kittiwake in Waterloo in Black Hawk County, IA on December 21, 1997. Includes a record review document with votes and a documentation form submitted to the committee.
|
Moore, Francis L.
|
Black-legged Kittiwake
|
Waterloo
|
On South Side of Cedar River between Cedar Falls and Waterloo opposite George Wyth S.P.
|
Open river front
|
The documentation form by Francis L. Moore is the only one submitted and forms the basis of this record. Other observers include Al Brown, Opal Uher, Maurice Hanson, Tom Stone, and Ruby Hanson. | Elimination of similar species: No other adult gull has this combination of fieldmarks, all yellow bill, black legs, black outer primaries, smudge on back of head onto the nape, black eyes, rest of body all white, white slightly forked tail. | The original documentation form event lasted from 13:10:00/13:20:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
10
|
|
Records Committee review for rare bird sighting of Black-legged Kittiwake north of Ventura, 1990
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1990-11-11
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review of a Black-legged Kittiwake north of Ventura in Cerro Gordo County, IA on November 11, 1990. Includes a record review document with votes and a documentation form submitted to the committee.
|
Walter, Janice L.
|
Black-legged Kittiwake
|
Ventura
|
1 mi. w. of Co. Road S-14, 5 1/4 mi. n. of Ventura, Cerro Gordo Co., Ia
|
Harvested corn field
|
The documentation form by Jan L. Walter is the only one submitted and forms the basis of this record. Another observers was Jim B. Walter. | Elimination of similar species: Black legs and feet and yellow bill eliminated other Gulls in this size range. | The original documentation form event occurred around 15-20 minutes to mid-afternoon.
|
Iowa Ornithologists' Union | MS 166
|
11
|
10
|
|
Records Committee review for rare bird sighting of Black-necked Stilt at Riverton Area, 1992
|
Administrative records Clippings (information artifacts) Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1992-05-12
|
1996-01-24
|
Rare birds documentation form
|
Records Committee review of a Black-necked Stilt at Riverton Area in Fremont County, IA on May 12, 1992. Includes a record review document with votes, an article in Iowa Bird Life, a photo, and three documentation forms submitted to the committee.
|
Johnson, Ann
|
Black-necked Stilt
|
Riverton Wildlife Management Area
|
Riverton Wildlife Area, Fremont Co., IOWA
|
Broad expanse of mud flats
|
The documentation form by Ann Johnson is the earliest and the one that forms the basis of this record. Other documentation forms by Pam Allen and Thomas H. Kent were submitted later. Other observers include Reid Allen, W. Ross Silcock, and Dick Tetrault. | Elimination of similar species: Identification of a Black-necked Stilt is straight forward. The only other bird in North America which is even remotely similar is the American Avocet. It can be eliminated by the black feathering on the head and neck, straight bill, and pink legs. | The original documentation form event lasted from 14:55:00/16:55:00.
|
Iowa Ornithologists' Union | MS 166
|
9
|
20
|
|
Records Committee review for rare bird sighting of Black-necked Stilt at Snyders Bend Lake, 1991
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1991-04-06
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review of a Black-necked Stilt at Snyders Bend Lake in Woodbury County, IA on April 6, 1991. Includes a record review document with votes, an article in Iowa Bird Life, and five documentation forms submitted to the committee.
|
Huser, Bill F.
|
Black-necked Stilt
|
Snyder Bend Park
|
Snyder's Bend Lake, Woodbury County, IA
|
Mudflats with mats of vegetation near old cattails
|
The documentation form by Bill Huser is the earliest and the one that forms the basis of this record. Other documentation forms by Bill Huser (additional sightings), Tanya Bray and Ross Silcock, Jim Fuller, and Babs and Loren Padelford were submitted later. Other observers include John Van Dyke, Eloise Armstrong, Eugene Armstrong, Bob Livermore, Bob Moritz, and Jerry Probst. | Elimination of similar species: Phalaropes - smaller, not as distinct black + white pattern or as long legs. Am. Avocet: upturned bill, white or tawny head + necks - not black over white | The original documentation form event occurred from 10:45:00/11:10:00, from 11:25:00/11:55:00, and around 13:30:00.
|
Iowa Ornithologists' Union | MS 166
|
9
|
20
|
|
Records Committee review for rare bird sighting of Black-necked Stilt at the Louisa Division in Port Louisa National Wildlife Refuge, 1997
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1997-03-26
|
2000-11-24
|
Rare birds documentation form
|
Records Committee review of a Black-necked Stilt at the Louisa Division in Mark Twain National Wildlife Refuge in Louisa County, IA on March 26, 1997. Includes a record review document with votes and a documentation form submitted to the committee.
|
Sprunger, Amy, Allworth.
|
Black-necked Stilt
|
Port Louisa National Wildlife Refuge - Louisa Division
|
Mark Twain NWR, Wapello District, Louisa Division
|
Shallow fesh water, ~ 4-6"; near deeper open water
|
The documentation form by Amy Sprunger-Allworth is the only one submitted and forms the basis of this record. | Elimination of similar species: American avocet. The avocet has reddish neck & head colorations; also has a bill that curves upward near the end. The stilt was only black & white in coloration, with a straight bill. Legs of stilt were pinkish red. | The original documentation form event lasted from 08:50:00/09:00:00.
|
Iowa Ornithologists' Union | MS 166
|
9
|
20
|
|
Records Committee review for rare bird sighting of Brant at De Soto National Wildlife Refuge, 1988
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1988-12-18
|
1993-08-04
|
Rare birds documentation form
|
Records Committee review of a Brant at De Soto National Wildlife Refuge in Harrison County, IA on December 18, 1988. Includes a record review document with votes, an article in Iowa Bird Life, a copy of a photo, and eight documentation forms submitted to the committee.
|
Rosenbaum, Mindy
|
Brant
|
DeSoto National Wildlife Refuge
|
In front of De Soto Visitor Center
|
frozen lake
|
The documentation form by Mindy Rosenbaum is the earliest and the one that forms the basis of this record. Other documentation forms by Steve Dinsmore, Robert K. Myers, Jim Fuller, Thomas H. Kent, Tanya Bray, Robert Cecil, and Ross Silcock were submitted later. Other observers include Francis Moore, Babs Padelford, Loren Padelford, John Hoogerheide, Eloise Armstrong, Eugene "Gene" Armstrong, and John Cecil. | The original documentation form event lasted from 14:00:00/14:45:00.
|
Iowa Ornithologists' Union | MS 166
|
8
|
9
|
|
Records Committee review for rare bird sighting of Brant at De Soto National Wildlife Refuge, 1980
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1980-11-02
|
1993-08-16
|
Rare birds documentation form
|
Records Committee review of a Brant at De Soto National Wildlife Refuge in Harrison County, IA on November 2, 1980. Includes a record review document with votes, an Iowa Bird Life article, and five documentation forms submitted to the committee.
|
Dinsmore, James J.
|
Brant
|
DeSoto National Wildlife Refuge
|
DeSoto Natl. Wildlife Refuge, Harrison Co (shot in NE corner on Iowa side of refuge)
|
Shot in field on refuge
|
The documentation form by James Dinsmore is the earliest and the one that forms the basis of this record. Other documentation forms by Randall G. Sease and Maury J. Muhm were submitted later. Other observers include John Kounas. | Elimination of similar species: Canada Goose-size of hutchin's race but no white cheek patch, otherwise bill size, neck proportions, and overall size matched Hutchins. Brant-not adult because lacked white necklace, not dark race because belly was light. | The original documentation form event lasted from 09:30:00/10:00:00.
|
Iowa Ornithologists' Union | MS 166
|
8
|
9
|
|
Records Committee review for rare bird sighting of Brant at Whitebreast Park, 1987
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1987-10-04
|
1993-09-07
|
Rare birds documentation form
|
Records Committee review of a Brant at near Whitebreast Park in Marion County, IA on October 4, 1987. Includes a record review document with votes, an article in Iowa Bird Life and a documentation form submitted to the committee.
|
Dinsmore, James J.
|
Brant
|
Whitebreast Recreation Area
|
released at Polk City Wildlife Area; bird had been caught on south shore of Red Rock Reservoir, Marion County
|
freshwater lake
|
The documentation form by Jim Dinsmore is the earliest and the one that forms the basis of this record. Other observers include Jennifer Lancaster, Tom Miller, Steve Dinsmore, and Roger Sedlacek. | Elimination of similar species: Canada Goose-small size eliminates all but the smallest races; the bird lacked a cheek patch. | The original documentation form event lasted from 11:00:00/08:00:00 next day when they released the bird.
|
Iowa Ornithologists' Union | MS 166
|
8
|
9
|
|
Records Committee review for rare bird sighting of Brant at Riverton Wildlife Management Area, IA, 1983
|
Administrative records Clippings (information artifacts) Correspondence Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1983-11-18
|
1993-09-01
|
Rare birds documentation form
|
Records Committee review of a Brant north of Riverton Wildlife Management Area in Fremont County, IA on November 18, 1983. Includes a record review document with votes, an article in Wildlife Notes, internal correspondence, and a documentation form submitted to the committee.
|
Priebe, Don
|
Brant
|
Riverton Wildlife Management Area
|
6 mi. N of Riverton on No. 2
|
Corn field
|
The documentation form by Don Priebe is the earliest and the one that forms the basis of this record. Other observers include Steve Benson, Carl Priebe, and Jim Priebe.
|
Iowa Ornithologists' Union | MS 166
|
8
|
9
|
|
Records Committee review for rare bird sighting of Broad-winged Hawk at Dubuque, 1988
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1988-01-02
|
1993-09-07
|
Rare birds documentation form
|
Records Committee review of a Broad-winged Hawk at Dubuque in Dubuque County, IA on January 2, 1988. Includes a record review document with votes and a documentation form submitted to the committee.
|
Miller, John Carl
|
Broad-winged Hawk
|
Dubuque
|
Dubuque, IA along the Heritage Trail near Sundown Ski area
|
Woodland with fields
|
The documentation form by John Carl Miller is the earliest and the one that forms the basis of this record. Other observers include Leta Miller. | The original documentation form event lasted from 11:00:00/11:07:00.
|
Iowa Ornithologists' Union | MS 166
|
8
|
31
|
|
Records committee review for rare bird sighting of Brown Pelican at Saylorville Reservoir, 1999
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1999-09-22
|
2000-11-28
|
Rare birds documentation form
|
Records committee review of a Brown Pelican at Saylorville Reservoir in Polk County, IA on September 22, 1999. Includes a record review document with votes and four documentation forms submitted to the committee.
|
Fuller, James L
|
Brown Pelican
|
Saylorville Lake
|
Saylorville Reservoir, off Campground #4 of Jester Park (Polk Co.)
|
|
The documentation form by Jim Fuller is the earliest and the one that forms the basis of this record. Other documentation forms by Thomas H. Kent, James Dinsmore, and Chris Edwards were submitted later. Other observers include Tom Staudt, James Huntington, Aaron Brees, Eloise Armstrong, Chris Caster, and Ann Johnson. | Elimination of similar species: Only other North American pelican is White, and size, body color, and bill color alone eliminate it. | The original documentation form event lasted from 11:15:00/12:10:00.
|
Iowa Ornithologists' Union | MS 166
|
7
|
11
|
|
Records Committee review for rare bird sighting of California Gull at Gull Point at West Okoboji Lake, 1997
|
Administrative records Correspondence Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1997-09-07
|
2000-11-24
|
Rare birds documentation form
|
Records Committee review of a California Gull at Gull Point at West Okoboji Lake in Dickinson County, IA on September 7, 1997. Includes a record review document with votes, correspondence from Ken Brock to Thomas Kent, and two copies of a documentation form submitted to the committee.
|
Schoenewe, Lee A.
|
California Gull
|
Gull Point
|
Gull Point, West Lake Okoboji, Dickinson Co.
|
Rocky point on natural lake
|
|
Iowa Ornithologists' Union | MS 166
|
11
|
1
|
|
Records Committee review for rare bird sighting of California Gull at Red Rock Lake, 1998
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1998-10-05
|
2000-11-24
|
Rare birds documentation form
|
Records Committee review of a California Gull at Red Rock Lake in Marion County, IA on October 5 to November 4, 1998. Includes a record review document with votes and a documentation submitted to the committee.
|
Brees, Aaron
|
California Gull
|
Lake Red Rock
|
Red Rock, Marion Co.
|
|
The documentation form by Aaron Brees is the only one submitted and forms the basis of this record. | Elimination of similar species: [...] - larger than Ring-billed Gulls [...] - smaller than Herring Gulls - all first year Herrings have 75-100% dark bills - Herrings are thicker, bulkier - California sits more buoyantly on the water with tail and wingtips sitting much higher off the water
|
Iowa Ornithologists' Union | MS 166
|
10
|
18
|
|
Records Committee review for rare bird sighting of California Gull at the Trickle Slough Area of Big Spirit Lake, 1998
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1998-10-13
|
2000-11-24
|
Rare birds documentation form
|
Records Committee review of a California Gull at the Trickle Slough Area of Big Spirit Lake in Dickinson County, IA on October 13, 1998. Includes a record review document with votes and a documentation form submitted to the committee.
|
Schoenewe, Lee A.
|
California Gull
|
Trickle Slough Area
|
Trickle Slough Area of Big Spirit Lake
|
Natural lake with point of land
|
The documentation form by Lee A. Schoenewe is the only one submitted and forms the basis of this record. Other observers include Eugene Armstrong and Eloise Armstrong. | Elimination of similar species: Thayer's Gull - head shape, bill size and leg color | The original documentation form event lasted from 15:40:00/16:00:00.
|
Iowa Ornithologists' Union | MS 166
|
10
|
18
|
|
Records Committee review for rare bird sighting of Common Eider at Jester Park, 1995
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1995-03-26
|
2000-11-18
|
Rare birds documentation form
|
Records Committee review of a Common Eider at Jester Park, Saylorville Reservoir in Polk County, IA on March 26, 1995. Includes a record review document with votes and a documentation form submitted to the committee.
|
Johnson, Ann
|
Common Eider
|
Jester Park
|
off Jester Park boat ramp, Saylorville Reservoir, Polk County, IA
|
open water
|
The documentation form by Ann Johnson is the earliest and the one that forms the basis of this record. | Elimination of similar species: ID based solely on head profile whichwas [sic] identical to the Red Rock bird studied at length earlier in the year. | The original documentation form event lasted from 16:55:00/17:00:00.
|
Iowa Ornithologists' Union | MS 166
|
8
|
18
|
|
Records Committee review for rare bird sighting of Common Eider at Red Rock Reservoir, 1995
|
Administrative records Clippings (information artifacts) Correspondence Field notes Forms (documents) Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1995-01-27
|
2000-11-18
|
Rare birds documentation form
|
Records Committee review of a Common Eider at Red Rock Reservoir in Marion County, IA on January 27, 1995. Includes a record review document with votes, correspondence over the sighting, photos, drawings of the bird sighting, articles in Iowa Bird Life, Field Notes, and other publications, and twelve documentation forms submitted to the committee.
|
Dinsmore, Stephen J.
|
Common Eider
|
Red Rock Dam
|
Des Moines River below Red Rock dam - Marion Co., Iowa
|
open stretch of river
|
The documentation form by Stephen J. Dinsmore is the earliest and the one that forms the basis of this record. Other documentation forms by Jim Dinsmore, Thomas H. Kent, Jim Fuller, Reid Allen, Ann Johnson, Mark Proescholdt, Chris Edwards, Peter C. Petersen, Ray Cummins, Robert Cecil, and Diane Porter were submitted later. | Elimination of similar species: See above discussion (Description). Steller's Eider eliminated by size. Female and immature King Eider eliminated by pattern of barring on flanks, size of bill, position of eye, faint white supercilium, and pattern of feathering on bill. Spectacled Eider eliminated by facial pattern and bill shape. | The original documentation form event lasted from 13:45:00/15:05:00.
|
Iowa Ornithologists' Union | MS 166
|
8
|
18
|
|
Records Committee review for rare bird sighting of Eurasian Wigeon at Ventura, 1992
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1992-03-18
|
1994-10-18
|
Rare birds documentation form
|
Records Committee review of a Eurasian Wigeon 4 miles south of Ventura in Cerro Gordo County, IA on March 18, 1992. Includes a record review document with votes, an Iowa Bird Life, and a documentation form submitted to the committee.
|
Pinkston, Randall, 1956-
|
Eurasian Wigeon
|
Ventura
|
County Roads B43 at S14, approx. 4 miles south of Ventura, Cerro Gordo Co., Iowa
|
|
The documentation form by Randall Pinkston is the earliest and the one that forms the basis of this record. | Elimination of similar species: Obvious differences from American Wigeon include the American's dark (green) face mask, white forehead and crown ("baldpate"), as well as those other differences discussed above. Female American has finely mottled grayish head and brownish sides, lacks striking patterns on wings and hindparts. Redhead (Aythya americana) has 'pochard' gestalt with darker brick-red vs. cinnamon-buff head, head more rounded in profile, tricolored bill broad and stout. Also has relatively plain wing with gray coverts and pale gray remiges. Canvasback (Aythya valisineria) of either sex safely separable on the basis of head and bill in profile. Again, male's head is dark brick-red, back and sides whitish, lacks bold wing pattern. Female mergansers easily separable on the basis of bill alone. | The original documentation form event occurred around 11:00:00.
|
Iowa Ornithologists' Union | MS 166
|
8
|
14
|
|
Records Committee review for rare bird sighting of Eurasian Wigeon at De Soto National Wildlife Refuge, 1995
|
Administrative records Field notes Forms (documents)
|
Bird watching Ornithology Ornithology--Societies, etc
|
1995-10-27
|
2000-11-20
|
Rare birds documentation form
|
Records Committee review of a Eurasian Wigeon at De Soto National Wildlife Refuge in Harrison County, IA on October 27, 1995. Includes one record review document with votes and a documentation forms.
|
Hulsebus, Terry J.
|
Eurasian Wigeon
|
DeSoto Lake
|
De Soto Nat'l. Wildlife Refuge
|
Oxbow Lake - nearshore
|
The documentation form by Terry J. Hulsebus is the earliest and the one that forms the basis of this record. Another observer was Mindy Sheets. | Elimination of similar species: American wigeon - located in close proximity. Close comparison was very helpful. | The original documentation form event occurred around 15:30:00.
|
Iowa Ornithologists' Union | MS 166
|
8
|
14
|
|
Records Committee review for rare bird sighting of Eurasian Wigeon at Riverton Area, 1991
|
Administrative records Field notes Forms (documents)
|
Bird watching Ornithology Ornithology--Societies, etc
|
1991-03-06
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review of a Eurasian Wigeon at Riverton Area in Fremont County, IA on March 6, 1991. Includes a record review document with votes, an Iowa Bird Life article, and two documentation forms submitted to the committee.
|
Dinsmore, Stephen J.
|
Eurasian Wigeon
|
Riverton Wildlife Management Area
|
Riverton W.A., Fremont Co., IA
|
|
The documentation form by Stephen J. Dinsmore is the earliest and the one that forms the basis of this record. Another documentation form by Eugene Armstrong was submitted later. Other observers include Eloise Armstrong, and Ross Silcock | Elimination of similar species: The combination of reddish head with buffy crown, gray mantle and flanks, black rump and undertail, and stubby, bluish-gray bill eliminates other waterfowl. | The original documentation form event lasted from 10:35:00/11:05:00, 12:05:00/12:25:00, and 16:40:00/17:22:00.
|
Iowa Ornithologists' Union | MS 166
|
8
|
14
|
|
Records Committee review for rare bird sighting of Eurasian Wigeon at Sweet Marsh, 1984
|
Administrative records Clippings (information artifacts) Field notes Forms (documents)
|
Bird watching Ornithology Ornithology--Societies, etc
|
1984-04-15
|
1993-09-01
|
Rare birds documentation form
|
Records Committee review of a Eurasian Wigeon at Sweet Marsh in Bremer County, IA on April 15, 1984. Includes a record review document with votes, an article in Iowa Bird Life, a summary of review, and eight documentation forms submitted to the committee.
|
Main, Stephen
|
Eurasian Wigeon
|
Sweet Marsh
|
Sweets Marsh, NW section, Tripoli, IA
|
Marsh - see above
|
The documentation form by Stephen Main is the earliest and the one that forms the basis of this record. Other documentation forms by Elaine Main, Francis L. Moore, Robert K. Myers, Thomas H. Kent, Thomas J. Staudt, Peter C. Petersen, and Carl J. Bendorf were submitted later. Other observers include Roberta Oppedahl and Lucille Liljedahl. | Elimination of similar species: have previously seen American Wigeon, Shoveler (present this time) and Redhead. | The original documentation form event lasted from 11:00:00/12:00:00.
|
Iowa Ornithologists' Union | MS 166
|
8
|
14
|
|
Records Committee review for rare bird sighting of Eurasian Wigeon northwest of Palo, 1992
|
Administrative records Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1992-04-25
|
1994-10-18
|
Rare birds documentation form
|
Records Committee review of a Eurasian Wigeon northwest of Palo in Linn County, IA on April 25, 1992. Includes a record review document with votes, a photograph, and four documentation forms submitted to the committee.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Eurasian Wigeon
|
Palo
|
2 miles north and 1 mile west of Palo, Linn Co., Iowa
|
Shallow natural pond in low-lying farmland.
|
The documentation form by Thomas H. Kent forms the basis of this record. Other documentation forms by Bob Cecil, Jim Fuller, and James Durbin were submitted later. Other observers include Joyce Durbin, James Scheib, Pam Allen, Reid Allen, Chris Edwards, Keith Carris, Peter Wickham and many unidentified other observers. | Elimination of similar species: Very similar to American Wigeon except for coloration as mentioned. | The original documentation form event occurred from 06:15:00/06:30:00 and around 16:00:00.
|
Iowa Ornithologists' Union | MS 166
|
8
|
14
|
|
Records Committee review for rare bird sighting of Ferruginous Hawk at Benton Township in Fremont County, 1989
|
Administrative records Field notes
|
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
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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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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
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Bird watching Ornithology Ornithology--Societies, etc
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1979-02-03
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1994-02-03
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Rare birds documentation form
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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.
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Hollis, Richard Jule
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Ferruginous Hawk
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Township of Oxford
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N Eastern Oxford Township, Johnson Co., Iowa
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perched on hedge rows or wood edges over snow covered fields
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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 Hichcock Nature Area, 1999
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Administrative records Field notes
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Bird watching Ornithology Ornithology--Societies, etc
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1999-12-05
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2000-11-28
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Rare birds documentation form
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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.
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Orsag, Mark
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Ferruginous Hawk
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Hitchcock Nature Area
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Hitchcock Nature Area (Lodge Hawkwatch Point)
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Loess Hills / Missouri River Valley. The bird was coming from out of the valley. It crossed the wooded ridges of HNA and headed southeast.
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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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