Records Committee review for rare bird sighting of Thayer's Gull at Cottonwood Recreation Area near Saylorville Dam, 1986
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1986-12-03
|
1993-09-07
|
Rare birds documentation form
|
Records Committee review of a Thayer's Gull at Cottonwood Recreation Area near Saylorville Dam in Polk County, IA on December 3, 1986. Includes a record review document with votes and a documentation form submitted to the committee.
|
Petersen, Peter C.
|
Thayer's Gull
|
Cottonwood Recreation Area
|
Cottonwood Rec. Area below Saylorville Dam. Polk Co
|
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Beth Proescholdt, Mark Proescholdt, Steve Dinsmore, Gil Sandvick, and unidentified other observers. | Elimination of similar species: [...] Birds call not distinguishable from Ring-billed Gulls feeding with it. [...] Herring Gull eliminated by lack of sharp contrast between primaries + remainder of mantle + back and whitish undersides of primaries. | The original documentation form event lasted from 10:02:00/10:03:00.
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Iowa Ornithologists' Union | MS 166
|
11
|
3
|
Records Committee review for rare bird sighting of Thayer's Gull near Horse Island near Davenport, 1989
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1989-01-02
|
1993-08-05
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull near Horse Island near Davenport in Scott County, IA on January 2, 1989. Includes a record review document with votes and a documentation form submitted to the committee.
|
Petersen, Peter C.
|
Thayer's Gull
|
Horse Island
|
downstream tip of Enchanted Island. Davenport, Scott Co. IA
|
Mississippi River - edge of open water, Iowa side
|
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 Corey Blevins. | Elimination of similar species: Herring Gull - eye light, wing tips black with white windows, bill larger than Thayers. California Gull - eye light, wing tips black with white windows, yellow legs. | The original documentation form event lasted from 13:35:00/13:50:00.
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Iowa Ornithologists' Union | MS 166
|
11
|
3
|
Rare bird documentation form for Surf Scoter at Green Island Wildlife Area, 1996
|
Field notes
|
Birds--Identification Ornithology--Societies, etc Rare birds
|
1996-05-13
|
1996-05-14
|
Rare birds documentation form
|
Rare bird documentation form for a Surf Scoter at Green Island Wildlife Area in Jackson County, IA on May 13, 1996.
|
Petersen, Peter C.
|
Surf Scoter
|
Green Island Wildlife Management Area
|
Green Island W.A. - Jackson Co.
|
Marsh- pond area diked from river
|
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: No whit [sic] on wing, eliminating wh-wg. Scoter. White much to limited for Black Scoter, also wings uniformly dark. Too large for Harlequin Duck. | The original documentation form event lasted from 06:15:00/06:16:00.
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Iowa Ornithologists' Union | MS 166
|
33
|
11
|
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
|
1
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Records Committee review for rare bird sighting of Black-necked Stilt at Storm Lake, 1994
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1994-09-05
|
1996-04-25
|
Rare birds documentation form
|
Records Committee review of two Black-necked Stilts at Storm Lake in Buena Vista County, IA on September 5, 1994. Includes a record review document with votes and a documentation form submitted to the committee.
|
Petersen, Peter C.
|
Black-necked Stilt
|
Storm Lake
|
Storm Lake, Buena Vista Co. IA
|
Island in lake & flying over lake.
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Brian Blevins, Corey Blevins, and Kelly McKay. | Elimination of similar species: No other shorebird is at all similar. | The original documentation form event lasted from 09:02:00/09:04:00.
|
Iowa Ornithologists' Union | MS 166
|
9
|
20
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Record Committee review for rare bird sighting of Ferruginous Hawk west of Conesville, 1989
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1989-04-29
|
1993-08-05
|
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.
|
Iowa Ornithologists' Union | MS 166
|
9
|
1
|
Rare bird documentation form for Varied Thrush at Davenport, 1985
|
Field notes
|
Birds--Food Birds--Identification Ornithology Rare birds
|
1985-01-11
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Varied Thrush at Davenport in Scott County, IA on January 11, 1985.
|
Petersen, Peter C.
|
Varied Thrush
|
Davenport
|
2950 Crestline Dr., Davenport, IA
|
urban yard, forest area across street, conifers in yard.
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Caroline A. England. | Elimination of similar species: Am. Robin - lacks breast band + eye stripe, orange in wings. | The original documentation form event lasted from 09:10:00/09:40:00.
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Iowa Ornithologists' Union | MS 166
|
35
|
11
|
Rare bird documentation form for Greater Scaup at Cone Marsh, 1980
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1980-04-06
|
1980-04-24
|
Rare birds documentation form
|
Rare bird documentation form for four Greater Scaups at Cone Marsh in Louisa County, IA on April 6, 1980.
|
Petersen, Peter C.
|
Greater Scaup
|
Cone Marsh Wildlife Management Area
|
Cone Marsh - S. E. area
|
pond-marsh, shallow pond edge
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Clark Scott. | Elimination of similar species: Lesser Scaup - those nearby had smaller bill [illegible]. They were not closely associating with the Greaters. | The original documentation form event lasted from 07:20:00/07:25:00 and 08:30:00/08:45:00.
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Iowa Ornithologists' Union | MS 166
|
33
|
10
|
Rare bird documentation form for King Rail at Muscatine County, 1987
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1987-05-11
|
1987-05-13
|
Rare birds documentation form
|
Rare bird documentation form for a King Rail at Muscatine County, IA on May 11, 1987.
|
Petersen, Peter C.
|
King Rail
|
Muscatine County
|
200 yards W. of West intersection Co. X54 & F70, Muscatine Co.
|
marsh
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Don Moeller and Walter Zuurdeeg. | Elimination of similar species: By tape match to King. As noted above Virginia Rail was present from a different direction. The 'song' heard was the 'grunt' call. | The original documentation form event occurred around 04:45:00.
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Iowa Ornithologists' Union | MS 166
|
33
|
41
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Records Committee review for rare bird sighting of Black Rail near Dixon, 1987
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1987-05-11
|
1993-09-07
|
Rare birds documentation form
|
Records Committee review of a Black Rail near Dixon in Scott County, IA on May 11, 1987. Includes a record review document with votes and a documentation form submitted to the committee.
|
Petersen, Peter C.
|
Black Rail
|
Dixon
|
1/2 mi. S. High Rock Bridge near Dixon, Scott Co.
|
grassy ditch along county road
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Don Moeller and Walter Zuurdeeg. | Elimination of similar species: Yellow Rail-no white wing patch. Sora & Virginia Rail-bird much too small, flight weaker than either. I had seen Soras several times in the preceeding [sic] two days. | The original documentation form event lasted from 20:40:00/20:41:00.
|
Iowa Ornithologists' Union | MS 166
|
9
|
12
|
Rare bird documentation form for Surf Scoter at Princeton Marsh, 1986
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1986-05-15
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Surf Scoter at Princeton Marsh in Scott County, IA on May 15, 1986.
|
Petersen, Peter C.
|
Surf Scoter
|
Princeton State Wildlife Management Area
|
Princeton Marsh
|
Pond near mouth of Wapsipinicon R, I mi. from Miss R. chanel [sic] Central pond, west edge of Princton [sic] Marsh State Wildlife area.
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Don Moeller, Corey Blevins, Gil Sandvick, Mary Lou Petersen, Ann Barker, and John Hoogerheide. | Elimination of similar species: Black scoter - no white on head. Wh-wg. Scoter, has white on wing, no white on back of head. | The original documentation form event lasted from 06:40:00/06:55:00, 09:45:00/10:00:00, and 15:45:00/16:00:00.
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Iowa Ornithologists' Union | MS 166
|
33
|
11
|
Rare bird documentation form for Glaucous Gull at Lock and Dam 15, 1983
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1983-01-23
|
1983-01-25
|
Rare birds documentation form
|
Rare bird documentation form for a Glaucous Gull at Lock and Dam 15 in Davenport in Scott County, IA on January 23, 1983 and January 25, 1983.
|
Petersen, Peter C.
|
Glaucous Gull
|
Lock and Dam 15
|
just above Lock 15, Davenport, Scott Co.
|
Miss. River ice
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Gerald White and Larry Linden. | Elimination of similar species: Iceland Gull - bird too large | The original documentation form event lasted from 13:05:00/13:10:00 on January 23, 1983 and 12:00:00/12:02:00 on January 25, 1983.
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Iowa Ornithologists' Union | MS 166
|
34
|
37
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Rare bird documentation form for Prairie Falcon at Ringgold Wildlife Area, 1988
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1988-04-22
|
1988-06-03
|
Rare birds documentation form
|
Rare bird documentation form for a Prairie Falcon at Ringgold Wildlife Area in Ringgold County, IA on April 22, 1988.
|
Petersen, Peter C.
|
Prairie Falcon
|
Ringgold State Wildlife Area
|
Ringold [sic] Wildlife Area, Ringold [sic] Co. IA
|
Overgrown pasture with scattered wooded areas.
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Gil Sandvick. | Elimination of similar species: Peregrine Falcon - would lack black axillaries, facial marking would be darker. Merlin - much smaller, facial markings much less distinct, lacks black axillaries. | The original documentation form event lasted from 18:10:00/18:15:00.
|
Iowa Ornithologists' Union | MS 166
|
33
|
35
|
Records Committee review for rare bird sighting of Thayer's Gull at Credit Island, 1989
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1989-11-24
|
1993-08-06
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at Credit Island in Scott County, IA on November 24, 1989. Includes a record review document with votes and a documentation form submitted to the committee.
|
Petersen, Peter C.
|
Thayer's Gull
|
Credit Island
|
Credit Island harbor
|
ice covered Miss. River backwater
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Jim Fuller, Brian Blevins, Corey Blevins, Lewis Blevins, Thomas H. Kent, John Daniels, and Ken Lowder. | Elimination of similar species: Herring Gull - dark brown primary tips, lacked silvery below wings. lack smudge on head | The original documentation form event lasted from 08:45:00/08:50:00 and 15:30:00/15:45:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
Rare bird documentation form for White-faced Ibis at Cone Marsh, 1990
|
Field notes Forms (documents)
|
Birds--Identification Ornithology Rare birds
|
1990-04-23
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a White-faced Ibis at Cone Marsh in Louisa County, IA on April 23, 1990.
|
Petersen, Peter C.
|
White-faced Ibis
|
Cone Marsh Wildlife Management Area
|
N.E. corner of Cone Marsh, Louisa Co., IA
|
Marsh, mudflat & shore areas
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Jim Sieh, Cal Knight, Bernie Knight, Brian Blevins, and Ann Barker. | Elimination of similar species: Glossy Ibis which was present for direct comparison, had a narrow whitish facial patch border not extending past the eye around a grey-blue patch. Eye seemed dark, but distance great to be positive. Legs were grey with reddish area at joint only. It seemed slightly larger than the White-faced. | The original documentation form event lasted from 08:30:00/09:40:00.
|
Iowa Ornithologists' Union | MS 166
|
32
|
25
|
Rare bird documentation form for Glossy Ibis at Cone Marsh, 1990
|
Field notes Forms (documents)
|
Birds--Identification Ornithology Rare birds
|
1990-04-23
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form a Glossy Ibis at Cone Marsh in Louisa County, IA on April 23, 1990.
|
Petersen, Peter C.
|
Glossy Ibis
|
Cone Marsh Wildlife Management Area
|
N.E. Corner Cone Marsh, Louisa Co., IA
|
Marsh & Mudflat, shore areas.
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Jim Sieh, Cal Knight, Bernie Knight, Brian Blevins, and Ann Barker. | Elimination of similar species: White-faced Ibis, which was present for direct comparison, had a wide white facial border around a redish-brown [sic] facial patch, eye seemed red but distance was a bit far to be positive, legs were uniformly reddish brown, bill darker & more reddish & bird seemed a bit smaller. | The original documentation form event lasted from 08:30:00/09:40:00.
|
Iowa Ornithologists' Union | MS 166
|
32
|
24
|
Rare bird documentation form for Trumpeter Swan at Mississippi River in Davenport, 1991
|
Field notes Forms (documents)
|
Birds--Identification Ornithology Rare birds
|
1991-12-06
|
1991-12-29
|
Rare birds documentation form
|
Rare bird documentation form for three Trumpeter Swans at Mississippi River near Enchanted Island in Davenport in Scott County, IA on December 6, 1991.
|
Petersen, Peter C.
|
Trumpeter Swan
|
Horse Island
|
Miss. River along S. Concord St. near Enchanted Island on Davenport, IA
|
Miss River + adjacent shore
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Kelly McKay, Weir Nelson, Jim Durbin, Joyce Durbin, and Dawn Fisher. | Elimination of similar species: Tundra Swan - would have yellow area between eye & bill. In addition these birds were marked & from a known Trumpeter population. | The original documentation form event occurred in various times.
|
Iowa Ornithologists' Union | MS 166
|
32
|
30
|
Records Committee review for rare bird sighting for Eastern Meadowlark at Wildcat Den State Park, 1987
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1987-12-26
|
1993-09-07
|
Rare birds documentation form
|
Records Committee review for an Eastern Meadowlark at Wildcat Den State Park in Muscatine County, IA on December 26, 1987. Includes a record review document with votes and a documentation form submitted to the committee.
|
Petersen, Peter C.
|
Eastern Meadowlark
|
Wildcat Den State Park
|
1/2 mi. W. of Wildcat Den State Park, Muscatine Co., IA.
|
roadside grassy edge
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Ken Olson and Gary Inhelder. | Elimination of similar species: Western Meadowlark - would show yellow on cheek, distinctly barred central tail + primary features. | The original documentation form event lasted from 09:55:00/09:57:00.
|
Iowa Ornithologists' Union | MS 166
|
14
|
7
|
Rare bird documentation form for Prairie Falcon at Davenport, 1989
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1989-01-12
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Prairie Falcon at Davenport in Scott County, IA on January 12, 1989.
|
Petersen, Peter C.
|
Prairie Falcon
|
Davenport
|
Utah Ave at Mississippi River - West edge of Davenport, IA
|
First seen walking river edge then chasing Rock Doves at grain terminal, finally perched on top of grain elevator.
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Larry Fisher. | Elimination of similar species: Peregrine Falcon - back darker, moustache black, no black underwing. Merlin, smaller, no black underwing. | The original documentation form event lasted from 11:00:00/11:10:00.
|
Iowa Ornithologists' Union | MS 166
|
33
|
35
|
Rare bird documentation form for Varied Thrush at Fairmont Cemetery in Davenport, 1983
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1983-12-08
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Varied Thrush at Fairmont Cemetery in Davenport in Scott County, IA on December 8, 1983.
|
Petersen, Peter C.
|
Varied Thrush
|
Fairmont Cemetery
|
E. entrance to Fairmont Cem., Hobson Ave., Davenport, IA.
|
edge of wooded ravine, brushy hedge.
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Larry Linder and Allen Hahn. | The original documentation form event lasted from 08:16:00/08:19:00 and 09:01:00/09:04:00.
|
Iowa Ornithologists' Union | MS 166
|
35
|
11
|
Rare bird documentation form for Greater Scaup at Goose Lake, 1984
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1984-05-10
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for three Greater Scaups at Goose Lake in Clinton County, IA on May 10, 1984.
|
Petersen, Peter C.
|
Greater Scaup
|
Goose Lake
|
Goose Lake
|
marshy lake - N. side of Goose Lake, seen from dike.
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Larry Linder. | Elimination of similar species: Lesser Scaup - eliminated by head shape, heavy nail on end of bill, whitish marking on head of female + wing stripe extending nearly to end of wing. | The original documentation form event lasted from 09:30:00/09:50:00.
|
Iowa Ornithologists' Union | MS 166
|
33
|
10
|
Records Committee review for rare bird sighting for Smith's Longspur northeast of the junction of I-80 and Middle Rd. near Bettendorf, 1982
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1982-04-10
|
1993-09-01
|
Rare birds documentation form
|
Records Committee review for three Smith's Longspurs northeast of the junction of I-80 and Middle Rd. near Bettendorf in Scott County, IA on April 10, 1982. Includes a record review document with votes and a documentation form submitted to the committee.
|
Petersen, Peter C.
|
Smith's Longspur
|
Interchange 301
|
1 mi. N.E. jct. I80 + Middle Rd. near Bettendorf IA.
|
road edge - cornfield - partly snow covered.
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Lewis Blevins, Brian Blevins, Corey Blevins, Don Moeller, Jean Moeller, Gerry Aanes, Marilyn Aanes, and Dick Hazell. | Elimination of similar species: Lapland Longspur - tail pattern wrong, belly buffy Vesper Sparrow - buffy belly, fainter streaking, incomplete eye-ring + lack of rusty shoulder. | The original documentation form event lasted from 08:30:00/08:40:00.
|
Iowa Ornithologists' Union | MS 166
|
13
|
42
|
Rare bird documentation form for Prairie Falcon at Forney's Lake, 1984
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1984-03-25
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Prairie Falcon at Forney's Lake in Fremont County, IA on March 25, 1984.
|
Petersen, Peter C.
|
Prairie Falcon
|
Forneys Lake
|
Forney's Lake, Fremont Co.
|
Missouri River Valley. Forney's Lake and adjacent fields
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Lewis Blevins, Corey Blevins, and Brian Blevins. | Elimination of similar species: Peregrine Falcon - black along base of wing and light fore edge eliminate. Merlin - same plus size. | The original documentation form event lasted from 12:23:00/12:25:00.
|
Iowa Ornithologists' Union | MS 166
|
33
|
35
|
Rare bird documentation form for Great Black-backed Gull at Lock and Dam 13, 1996
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1996-09-29
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Great Black-backed Gull at Lock and Dam 13 in Clinton County, IA on September 29, 1996.
|
Petersen, Peter C.
|
Great Black-backed Gull
|
Lock and Dam 13
|
Lock 13
|
Miss. River - Circular pier.
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Mark Bollinger, Corey Blevins, and Lewis Blevins. | Elimination of similar species: Lesser Black-backed- leg color, size, darkness of back. Slaty-backed - size, darkness of back. Western- size, darkness of back. | The original documentation form event lasted from 12:00:00/12:15:00 and 14:45:00/15:05:00.
|
Iowa Ornithologists' Union | MS 166
|
34
|
38
|
Rare bird documentation form for Mute Swan at Mississippi River in Scott County, 1986
|
Field notes Forms (documents)
|
Birds--Identification Ornithology Rare birds
|
1986-12-21
|
1986-12-26
|
Rare birds documentation form
|
Rare bird documentation form for a Mute Swan at Mississippi River downriver from Alcoa pumping house in Scott County, IA on December 21, 1986.
|
Petersen, Peter C.
|
Mute Swan
|
Scott County
|
Mississippi River just downstream from Alcoa pumping house Scott Co.
|
River shoreline - mid-river
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Mary Lou Petersen and Tim Brush. | Elimination of similar species: Tundra and Trumpeter Swans have almost entirely black bills. | The original documentation form event lasted from 10:30:00/10:45:00 on December 21, 1986 and 14:07:00/14:10:00 on December 24, 1986.
|
Iowa Ornithologists' Union | MS 166
|
32
|
29
|