|
Records Committee review for rare bird sighting of Clark's Grebe at South Twin Lake, 1994
|
Administrative records Clippings (information artifacts) Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1994-11-25
|
1996-04-25
|
Rare birds documentation form
|
Records Committee review for a Clark's Grebe at South Twin Lake in Calhoun County, IA on November 25, 1994. Includes a record review document with votes, a photo, an Iowa Bird Life article, and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Clark's Grebe
|
South Twin Lake
|
South Twin L., Calhoun Co., IA
|
shallow lake
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. Another observer was Susan B. Grove. | Elimination of similar species: The short body, longer neck, and bright orange bill color eliminates all species of loons. The only other similar species is Western Grebe, which has a dulller yellowish bill and dark lores and dark color around the eyes. | The original documentation form event lasted from 08:25:00/08:55:00.
|
Iowa Ornithologists' Union | MS 166
|
7
|
9
|
|
Records Committee review for rare bird sighting of Laughing Gull at Red Rock Reservoir, 1991
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1991-08-06
|
1995-07-08
|
Rare birds documentation form
|
Records Committee review for two Laughing Gulls at Red Rock Reservoir in Marion County, IA on August 6, 1991. Includes a record review document with votes, an article in Iowa Bird Life, and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Laughing Gull
|
Lake Red Rock
|
Red Rock Reservoir, Marion Co.
|
large mudflat along lakeshore
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. Other observers include Bob Myers and many unidentified observers. | Elimination of similar species: The only species similar to a Laughing Gull is Franklin's Gull. This species was eliminated on the basis of size, bill size and shape, leg length, and wing and tail pattern. | The original documentation form event lasted from 07:21:00/13:56:00.
|
Iowa Ornithologists' Union | MS 166
|
10
|
18
|
|
Records Committee review for rare bird sighting of Red-throated Loon at Saylorville Reservoir, 1995
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1995-11-29
|
2000-11-20
|
Rare birds documentation form
|
Records Committee review for a Red-throated Loon at Saylorville Reservoir in Polk County, IA on October 29, 1995. Includes a record review document and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Red-throated Loon
|
Saylorville Lake
|
Saylorville Res., Polk Co.
|
large lake
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. Other observers include Dennis "Denny" Thompson. | Elimination of similar species: The smaller size, slimmer appearances, and bill size and shape eliminate other loon species, especially Pacific and Common. | The original documentation form event lasted from 15:55:00/16:50:00.
|
Iowa Ornithologists' Union | MS 166
|
7
|
5
|
|
Records Committee review for rare bird sighting of Laughing Gull at Oak Grove Beach at Saylorville Reservoir, 1990
|
Administrative records Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1990-04-13
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review of a Laughing Gull at Oak Grove Beach at Saylorville Reservoir in Polk County, IA on April 13, 1990. Includes a record review document with votes, a photocopy of a photo, and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Laughing Gull
|
Oak Grove Recreation Area
|
Oak Grove Beach, Saylorville Reservoir, Polk Co., IA
|
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. Other observers include Eugene Armstrong and Eloise Armstrong. | Elimination of similar species: On the basis of the dark hood, size, and dark gray mantle, all gulls except for Laughing and Franklin's gulls can be removed from consideration. I will admit that I was skeptical that a Laughing Gull could show up in Iowa on such an early spring date; most interior records are from May-June. But, given the evidence, I am convinced that this bird was indeed a Laughing Gull. The size of this bird, nearly that of a ring-billed gull, favors Laughing Gull. The bill shape and size, length of the legs, wing pattern, and extent of the eye crescents also favor Laughing Gull. An adult Franklin's Gull can be eliminated by the lack of a white bar separating the gray inner wing from the black wingtip. One year-old Franklin's Gulls, however, may show a wing pattern like that of this bird. But, according to Kaufman (1990), such a Franklin's Gull should show some white flecks on the hood, and would be most likely encountered in late spring and summer. | The original documentation form event lasted from 10:48:00/11:34:00 and 12:26:00/13:20:00.
|
Iowa Ornithologists' Union | MS 166
|
10
|
18
|
|
Records Committee review for rare bird sighting for Barrow's Goldeneye near Montrose, 1995
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1995-12-18
|
2000-11-20
|
Rare birds documentation form
|
Records Committee review for a Barrow's Goldeneye near Montrose in Lee County, IA on December 18, 1995. Includes a record review document with votes, an article in Iowa Bird Life, and a documentation form (two copies) submitted to the committee.
|
Dinsmore, Stephen J.
|
Barrow's Goldeneye
|
Pool 19
|
Pool 19, Montrose, Lee Co.
|
river
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. Other observers include Francis Moore and John Cecil. | Elimination of similar species: The only possible confusion would be with a male Common Goldeneye, thousands of which were available for direct comparison. The bill and head shapes, shape of the white facial spot, and mantle pattern were all diagnostic of an adult male Barrow's Goldeneye. | The original documentation form event lasted from 09:20:00/10:30:00.
|
Iowa Ornithologists' Union | MS 166
|
8
|
21
|
|
Records Committee review for rare bird sighting of Jaeger species at Spirit Lake, 1996
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-11-17
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review of a Jaeger species bird at Spirit Lake in Dickinson County, IA on November 17, 1996. Includes a record review document with votes and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Jaegers
|
Spirit Lake
|
Spirit L., Dickinson Co., IA
|
large lake
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. Other observers include James J. Dinsmore. | Elimination of similar species: The combination of size, dark coloration, and white in the primary shafts eliminated the possibility of a juvenile gull. Despite the great distance and lack of a good view of the wing pattern, I believe the bird was a Pomarine Jaeger. | The original documentation form event lasted from 13:45:00/14:43:00.
|
Iowa Ornithologists' Union | MS 166
|
10
|
13
|
|
Records Committee review for rare bird sighting of Parasitic Jaeger at the Cherry Glen Recreation Area at Saylorville Reservoir, 1990
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1990-09-03
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review of a Parasitic Jaeger at Cherry Glen Recreation Area at Saylorville Reservoir in Polk County, IA on September 3, 1990. Includes a record review document with votes and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Parasitic Jaeger
|
Cherry Glen Recreation Area
|
Saylorville Reservoir, Polk Co.-off Cherry Glen Recreation Area
|
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. Other observers include Scott Rolfes. | Elimination of similar species: The color and wing crescent eliminates all larids except skuas and Pomarine and Long-tailed jaegers. Skuas are easily eliminated by their larger size, heavier bill, and more prominent white patches on the wings. Long-tailed Jaeger is eliminated by the presence of a white crescent on the upper surface of the wing. Pomarine Jaeger can be eliminated by its larger, heavier body size, more prominent white crescent on the wing, presence of white greater underprimary coverts, larger-headed appearance, heavier bill, and general lack of rufous color on the body. | The original documentation form event lasted from 16:22:00/16:51:00.
|
Iowa Ornithologists' Union | MS 166
|
10
|
16
|
|
Records Committee review for rare bird sighting of Mew Gull at Lakeview Recreation Area at Saylorville Reservoir, 1993
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1993-12-20
|
1996-01-25
|
Rare birds documentation form
|
Records Committee review of a Mew Gull at Lakeview Recreation Area at Saylorville Reservoir in Polk County, IA on December 20, 1993. Includes a record review document with votes, an article in Iowa Bird Life, and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Mew Gull
|
Lakeview Recreation Area
|
Saylorville Reservoir, Polk Co., IA-on jetty at Lakeview Rec. Area
|
perched on jetty with other gulls
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. Other observers include Susan Grove, Eugene Armstrong, and Eloise Armstrong. | Elimination of similar species: On the basis of size and general plumage characters, this species could only be confused with Ring-billed Gull, hundreds of which were available for direct comparison. The combination of slightly smaller size, distinct head shape, bill color and shape, dark eye, and slightly darker mantle and upperwings are sufficient to eliminate Ring-billed Gull. | The original documentation form event lasted from 15:42:00/16:53:00.
|
Iowa Ornithologists' Union | MS 166
|
10
|
23
|
|
Record Committee review for rare bird sighting of Pacific Loon at Lake Icaria, 1995
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1995-11-21
|
2000-11-20
|
Rare birds documentation form
|
Records Committee review for a Pacific Loon at Lake Icaria in Adams County, IA on November 21, 1995. Includes a record review document with votes and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Pacific Loon
|
Lake Icaria
|
Lake Icaria, Adams Co.
|
large lake
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. Other observers include William R. Clark. | Elimination of similar species: The size, neck pattern, bill shape, and chinstrap eliminate other species of loons. | The original documentation form event lasted from 16:20:00/16:45:00.
|
Iowa Ornithologists' Union | MS 166
|
7
|
7
|
|
Records Committee review for rare bird sighting of Mew Gull at Lock and Dam 19 at Keokuk, 1998
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1998-12-21
|
2000-11-24
|
Rare birds documentation form
|
Records Committee review for a Mew Gull at Lock and Dam 19 at Keokuk in Lee County, IA on December 21, 1998. Includes a record review document with votes and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Mew Gull
|
Lock Number 19
|
Lock and Dam 19, Keokuk, Lee County, Iowa
|
feeding below dam of a large river
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. Other observers were Aaron Brees and many unidentified other observers. | Elimination of similar species: The combination of a smaller bill, more extensive dark brown color on the underparts, darker gray mantle, and solidly dark rectrices eliminated the similar Ring-billed Gull. | The original documentation form event lasted from 12:25:00/13:00:00.
|
Iowa Ornithologists' Union | MS 166
|
10
|
23
|
|
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 Great Black-backed Gull at Lock 19 in Keokuk, 1991
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1991-02-07
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review for a Great Black-backed Gull at Lock 19 in Keokuk in Lee County, IA on February 7, 1991. Includes a record review document with votes, an article in Iowa Bird Life, comparison of different gull sightings, and two documentation forms submitted to the committee.
|
Dinsmore, Stephen J.
|
Great Black-backed Gull
|
Lock Number 19
|
Lock 19, Keokuk, Lee Co.
|
|
The documentation form by Steve Dinsmore forms the basis of this record. Another documentation form by Ann Johnson was submitted. Another observer was Beth Brown. | Elimination of similar species: The black mantle really eliminates most other gulls. Western Gull, a remote possibility, is smaller and has a slightly paler mantle. | The original documentation form event lasted from 13:10:00/15:40:00 on February 7, 1991 and 13:32:00/14:20:00 on February 8, 1991.
|
Iowa Ornithologists' Union | MS 166
|
11
|
8
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Island View Park at Rathbun Reservoir, 1986
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1986-12-20
|
1993-09-07
|
Rare birds documentation form
|
Records Committee review for three Thayer's Gulls at Island View Park at Rathbun Reservoir in Appanoose County, IA on December 20, 1986. Includes a record review document with votes, a summary of the review, and two documentation forms submitted to the committee.
|
Dinsmore, Stephen J.
|
Thayer's Gull
|
Island View Park
|
Rathbun Reservoir, Appanoose Co. (Island View East and West Areas)
|
sitting on ice and feeding on open water with other gulls
|
The documentation form by Steve Dinsmore forms the basis of this record. Another documentation form by Ray Cummins was submitted. Another observer includes Randy Strough. | Elimination of similar species: The first-year birds were separated from first-year Iceland Gull by the distinct tail band and the darker primaries and from first-year Herring Gull by head shape, bill size, more uniform body color, and the silvery-white underwing. The adult bird was separated from an adult Iceland Gull by size, bill shape, and more black (still not too much, though) in the wingtips and from an adult Herring Gull by head shape, bill size, and paler wingtips. | The original documentation form event lasted from 10:05:00/10:30:00 and 13:30:00/13:54:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Sabine's Gull near Jester Park at Saylorville Reservoir, 1988
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1988-10-20
|
1993-08-04
|
Rare birds documentation form
|
Records Committee review for a Sabine's Gull near Jester Park at Saylorville Reservoir in Polk County, IA on October 20, 1988. Includes a record review document with votes, an article in Iowa Bird Life, and two documentation forms submitted to the committee.
|
Dinsmore, Stephen J.
|
Sabine's Gull
|
Jester Park
|
near the Jester Park area of Saylorville Reservoir, Polk Co.
|
resting on large mud bar on reservoir
|
The documentation form by Steve Dinsmore forms the basis of this record. Another documentation form by Robert Myers was submitted. | Elimination of similar species: The size, grayish upperparts, and striking wing pattern eliminate all other gulls. | The original documentation form event lasted from 16:05:00/17:50:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
9
|
|
Records Committee review for rare bird sighting for Ivory Gull at Red Rock Reservoir Dam, 1990
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1990-12-24
|
1999-10-15
|
Rare birds documentation form
|
Records Committee review for an Ivory Gull at Red Rock Reservoir Dam in Marion County, IA on December 24, 1990. Includes a record review document with votes, an Iowa Bird Life article and front page, a page from American Birds, an article in Knoxville Journal Express, and eleven documentation forms submitted to the committee.
|
Dinsmore, Stephen J.
|
Ivory Gull
|
Red Rock Dam
|
below Red Rock Reservoir dam, Marion Co., IA
|
|
The documentation form by Steve Dinsmore forms the basis of this record. Other documentation forms by Ann Johnson, Mark Proescholdt, Randall Pinkston, Thomas H. Kent, Raymond Cummins, Jim Fuller, Carl Bendorf, Tanya Bray, Peter Petersen, and Diane Porter were submitted. Other observers include James Huntington, Alan Grenon, Rick Wright, Jim Scheib, Eloise Armstrong, Eugene Armstrong, Bob Myers, B.J. Rose, Ken Lowder, John Daniel, Carol Thompson, Tim Schantz, Reid Allen, Pam Allen, Beth Proescholdt, Beth Brown, Curt Nelson, Babs Padelford, Loren Padelford, Dick Tetrault, Jim Dinsmore, Kelly McKay, Mary Lou Petersen, and many unidentified observers. | Elimination of similar species: The bird was really quite distinctive and not likely to be confused with any other gull. The white plumage, black legs, bill shape and color, dark area at base of bill, and pattern of black spots on wings and body eliminates all other gulls. | The original documentation form event lasted from 13:02:00/16:54:00 on December 24, 1990.
|
Iowa Ornithologists' Union | MS 166
|
11
|
12
|
|
Records Committee review for rare bird sighting of Red Phalarope at Saylorville Reservoir, 1988
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1988-09-30
|
1993-08-04
|
Rare birds documentation form
|
Records Committee review for a Red Phalarope at Saylorville Reservoir in Polk County, IA on September 30, 1988. Includes a record review document with votes, an article in Iowa Bird Life, and ten documentation forms submitted to the committee.
|
Dinsmore, Stephen J.
|
Red Phalarope
|
Saylorville Lake
|
north end of Saylorville Reservoir, Polk Co.
|
swimming and wading in shallow water adjacent to large mudflat
|
The documentation form by Steve Dinsmore forms the basis of this record. Other documentation forms by Bery Engebretsen, Mark Proescholdt, Beth Proescholdt, Andrew S. Fix, Jim Sinclair, James Dinsmore, Thomas H. Kent, Ann Johnson, and Mike Thomas were submitted. Other observers includes David Youngblut and Larry Morris. | Elimination of similar species: The posture, behavior, and black and white color pattern rule out all shorebirds except phalaropes. The size, "hunchbacked" appearance, bill shape, head pattern, and unstreaked, gray upperparts eliminates Red-necked and Wilson's phalaropes. | The original documentation form event lasted from 16:46:00/17:05:00 on September 30, 1988 and 14:12:00/16:05:00 on October 1, 1988.
|
Iowa Ornithologists' Union | MS 166
|
10
|
12
|
|
Records Committee review for rare bird sighting of Thayer's Gull near Oak Grove Beach and Saylorville Reservoir Dam, 1986
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1986-11-23
|
1993-09-07
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull near Oak Grove Beach and Saylorville Reservoir Dam in Polk County, IA on November 23, 1986. Includes a record review document with votes, a summary of the review, and ten documentation forms submitted to the committee.
|
Dinsmore, Stephen J.
|
Thayer's Gull
|
Saylorville Dam Oak Grove Recreation Area
|
Saylorville Reservoir, Polk Co. (Oak Grove Beach and near dam)
|
seen resting on beach and flying over water near dam
|
The documentation form by Steve Dinsmore forms the basis of this record. Other documentation forms by Bob Myers, Mark Proescholdt, Beth Proescholdt, Thomas H. Kent, Jim Fuller, Francis L. Moore, Robert Cecil, and Paul Martsching were submitted. | Elimination of similar species: The darker body plumage and dark tail band eliminate Iceland Gull (Kumlien's form). The smaller size, smaller, more delicate bill, more rounded head, silvery white underwing pattern, more uniform body color, and more uniform upperwing pattern eliminate first winter Herring Gull. | The original documentation form event lasted from 10:50:00/11:55:00 and 15:50:00/16:05:00 on November 23, 1986 and 14:50:00/15:35:00 on November 24, 1986.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Saylorville Reservoir Dam, 1987
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1987-12-02
|
1993-09-07
|
Rare birds documentation form
|
Records Committee review for two or more Thayer's Gulls at Saylorville Reservoir Dam in Polk County, IA on December 2, 1987. Includes a record review document with votes and five documentation forms submitted to the committee.
|
Dinsmore, Stephen J.
|
Thayer's Gull
|
Saylorville Dam
|
Saylorville Reservoir, Polk Co.
|
sitting on ice with other gulls
|
The documentation form by Steve Dinsmore forms the basis of this record. Other documentation forms by Francis L. Moore, Steve Dinsmore, and Mark Proescholdt were submitted. Other observers include Andy Fix, Beth Proescholdt, Eugene Armstrong, Eloise Armstrong, Bob Cecil, Bery Engebretsen, Jim Sinclair, and many unidentified observers. | Elimination of similar species: The overall dark color of the bird and the lack of paler wingtips eliminates first-winter Iceland Gull. The translucent flight feathers, uniform body color, lack of a "window" on the upperwing, smaller, thinner bill, rounder head, dark smudge around the eye, and smaller size eliminates first-winter Herring Gull. The uniform body color, lack of a dark tail band, and translucent flight feathers eliminates first-winter Lesser Black-backed Gull. | The original documentation form event lasted from 08:00:00/08:05:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Arctic Tern at Sandpiper Beach at Saylorville Reservoir, 1999
|
Administrative records Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1999-08-18
|
2000-11-28
|
Rare birds documentation form
|
Records Committee review for an Arctic Tern at Sandpiper Beach at Saylorville Reservoir in Polk County, IA on August 18, 1999. Includes a record review document with votes, four photographs, and three documentation forms submitted to the committee.
|
Dinsmore, Stephen J.
|
Arctic Tern
|
Sandpiper Recreation Area
|
Saylorville Reservoir, Polk County, Iowa
|
large reservoir
|
The documentation form by Steve Dinsmore forms the basis of this record. Other documentation forms by James J. Dinsmore and Ann Johnson were submitted. | Elimination of similar species: The combination of size, bill shape and color, white cheek, dark gray underparts, leg length, and wing pattern eliminate other species of Sterna. | The original documentation form event lasted from 17:30:00/17:55:00.
|
Iowa Ornithologists' Union | MS 166
|
12
|
2
|
|
Records Committee review for rare bird sighting of Arctic Tern at Sandpiper Beach at Saylorville Reservoir, 1999
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1999-08-19
|
2000-11-28
|
Rare birds documentation form
|
Records Committee review for an Arctic Tern at Sandpiper Beach at Saylorville Reservoir in Polk County, IA on August 19, 1999. Includes a record review document with votes, and three documentation forms submitted to the committee.
|
Dinsmore, Stephen J.
|
Arctic Tern
|
Sandpiper Recreation Area
|
Saylorville Reservoir, Polk County, Iowa
|
large reservoir
|
The documentation form by Steve Dinsmore forms the basis of this record. Other documentation forms by Jim Dinsmore and Tom Kent were submitted. Other observers include Jim Sinclair and Dick Tetrault. | Elimination of similar species: The combination of smaller size, bill size, leg length, and wing pattern eliminates other Sterna, especially Common and Forster's Terns. | The original documentation form event lasted from 18:15:00/19:40:00.
|
Iowa Ornithologists' Union | MS 166
|
12
|
2
|
|
Records Committee review for rare bird sighting of Mew Gull at Red Rock Reservoir Dam, 1994
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1994-12-11
|
1996-04-25
|
Rare birds documentation form
|
Records Committee review of a Mew Gull at Red Rock Reservoir Dam in Marion County, IA on December 11, 1994. Includes a record review document with votes, an article in Iowa Bird Life, and four documentation forms submitted to the committee.
|
Dinsmore, Stephen J.
|
Mew Gull
|
Red Rock Dam
|
below Red Rock Reservoir dam, Marion Co., IA
|
spillway
|
The documentation form by Steve Dinsmore forms the basis of this record. Other documentation forms by Jim Sinclair, Ray Cummins, and Thomas H. Kent were submitted. Other observers include Tim Schantz, Jim Fuller, and many unidentified observers. | Elimination of similar species: The only species with which this bird could be confused is Ring-billed Gull. The tail and wing patterns, generally darker coloration, large eye, and smaller bill all eliminate first-winter Ring-billed Gull. Identification to subspecies was based on tail pattern and more extensive dark color on head and underparts. | The original documentation form event lasted from 07:20:00/08:30:00.
|
Iowa Ornithologists' Union | MS 166
|
10
|
23
|
|
Records Committee review for rare bird sighting for Rock Wren at Cherry Glen Recreation Area at Saylorville Reservoir, 1988
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1988-11-08
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1993-08-04
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Rare birds documentation form
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Records Committee review for a Rock Wren at Cherry Glen Recreation Area at Saylorville Reservoir in Polk County, IA on November 8, 1988. Includes a record review document with votes, an article in Iowa Bird Life, and seven documentation forms submitted to the committee.
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Dinsmore, Stephen J.
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Rock Wren
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Cherry Glen Recreation Area
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Saylorville Reservoir, Polk Co.-Cherry Glen Rec. Area
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hopping around in rock rip-rap along lakeshore
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The documentation form by Steve Dinsmore forms the basis of this record. Other documentation forms by Michael and Diane Porter, Ray Cummins, Robert Cecil, Jim Fuller, Ann Johnson, and Mark Proescholdt were submitted. Other observers include Thomas Kent, John Cecil, Tom Johnson, Beth Proescholdt, Francis Moore, Beth Brown, Cal or Bernie Knight, Eugene Armstrong, Eloise Armstrong, and many unidentified other observers. | Elimination of similar species: The size, behavior, gray upperparts and buffy tail, light eyeline, and call eliminate other wrens. | The original documentation form event lasted from 15:08:00/15:20:00 on November 8, 1988.
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Iowa Ornithologists' Union | MS 166
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13
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1
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Records Committee review for rare bird sighting of Thayer's Gull near Saylorville Reservoir Dam and Oak Grove Beach, 1986
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Administrative records Field notes
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Bird watching Ornithology Ornithology--Societies, etc
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1986-11-23
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1993-09-07
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Rare birds documentation form
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Records Committee review for seven or more Thayer's Gulls near Saylorville Reservoir Dam and Oak Grove Beach in Polk County, IA on November 23, 1986. Includes a record review document with votes, a summary of the review, and seven documentation forms submitted to the committee.
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Dinsmore, Stephen J.
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Thayer's Gull
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Saylorville Dam Oak Grove Recreation Area
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Saylorville Reservoir, Polk Co.(Oak Grove Beach and near dam)
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seen resting on beach and flying over water near dam
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The documentation form by Steve Dinsmore forms the basis of this record. Other documentation forms by Steve Dinsmore were submitted. Other observers include Paul Martsching, Bob Myers, Beth Proescholdt, Mark Proescholdt, and many unidentified other observers. | Elimination of similar species: The darker body plumage and dark tail band eliminate Iceland Gull (Kumlien's form). The smaller size, smaller, more delicate bill, more rounded head, silvery white underwing pattern, more uniform body color, and more uniform upperwing pattern eliminate first winter Herring Gull. | The original documentation form event occurred at various times.
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Iowa Ornithologists' Union | MS 166
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11
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3
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Records Committee review for rare bird sighting of Lesser Black-backed Gull at Saylorville Dam, 1986
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Administrative records Field notes
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Bird watching Ornithology Ornithology--Societies, etc
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1986-11-29
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1993-09-07
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Rare birds documentation form
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Records Committee review for a Lesser Black-backed Gull at Saylorville Dam in Polk County, IA on November 29, 1986. Includes a record review document with votes, a summary of review, and three documentation forms submitted to the committee.
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Dinsmore, Stephen J.
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Lesser Black-backed Gull
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Saylorville Dam
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Saylorville Reservoir, Polk Co.
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sitting on ice above dam
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The documentation form by Steve Dinsmore forms the basis of this record. Other documentation forms by Tanya Bray and Barbara Wilson were submitted. Other observers include Peter Wickham, Mark Brogie, and Bery Engebretsen. | Elimination of similar species: Great Black-backed Gull was eliminated by the smaller size, contrast between the wingtips and the rest of the wing, and by the heavy streaking on the head(head should be mostly white on a Great Black-backed Gull). California Gull was eliminated by the darker mantle, darker underwing and dark carpal bar, lack of a dark spot on the bill, and by the dark smudge at the base of the bill(this is characteristic of 3rd summer Lesser Black-backed Gulls and is never present on California Gulls). | The original documentation form event lasted from 10:08:00/12:10:00.
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Iowa Ornithologists' Union | MS 166
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11
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5
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Records Committee review for rare bird sighting of Sabine's Gull at Saylorville Reservoir, 1995
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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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1995-09-14
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2000-11-20
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Rare birds documentation form
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Records Committee review for one to two Sabine's Gull at Saylorville Reservoir in Polk County, IA on September 14, 1995. Includes a record review document with votes, an Iowa Bird Life article, and three documentation forms submitted to the committee.
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Dinsmore, Stephen J.
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Sabine's Gull
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Saylorville Lake
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Saylorville Res., Polk Co.
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large lake
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The documentation form by Steve Dinsmore forms the basis of this record. Other documentation forms by Thomas H. Kent and Chris Edwards were submitted. Other observers include Tim Schantz, Chris Caster, James Huntington, and many unidentified other observers. | Elimination of similar species: The distinctive wing pattern eliminates other gull species, especially Black-legged Kittiwake. | The original documentation form event lasted from 09:40:00/10:30:00.
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Iowa Ornithologists' Union | MS 166
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11
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9
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