Records Committee review for rare bird sighting of Laughing Gull at Lock 19 in Keokuk, 1994
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1994-07-08
|
1997-10-03
|
Rare birds documentation form
|
Records Committee review for a Laughing Gull at Lock 19 in Keokuk in Lee County, IA on July 8, 1994. 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
|
Lock Number 19
|
above Lock 19, Keokuk, Lee Co., IA
|
resting on a log in river
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: Franklin's Gull is the only species this bird was likely to be confused with. The larger size, longer, more pointed wings, lack of white color in the primaries, longer, larger bill, dark legs and bill, and gray wash on nape (rather than a more distinct half-hood) are sufficient to eliminate Franklin's Gull. | The original documentation form event lasted from 16:05:00/16:30:00 on July 8, 1994 and 06:15:00/06:28:00 on July 9, 1994.
|
Iowa Ornithologists' Union | MS 166
|
10
|
18
|
Records Committee review for rare bird sighting of Laughing Gull at Sandpiper Beach at Saylorville Reservoir, 1996
|
Administrative records Clippings (information artifacts) Correspondence Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-05-10
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Laughing Gull at Sandpiper Beach at Saylorville Reservoir in Polk County, IA on May 10, 1996. Includes one record review document with votes, a photograph, correspondence about bird sighting, an Iowa Bird Life Article, and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Laughing Gull
|
Sandpiper Recreation Area
|
Saylorville Reservoir, Polk Co., IA
|
resting on beach with other gulls
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: The bird was clearly one of the "hooded" gulls. The combination of size, mantle color, and upperwing pattern eliminates all of the hooded gulls except for Franklin's Gull. The larger size, less obvious white eye crescents, larger and longer bill, and extensively dark tips to the underwings eliminated Franklin's Gull. | The original documentation form event lasted from 12:45:00/13:10:00.
|
Iowa Ornithologists' Union | MS 166
|
10
|
18
|
Records Committee review for rare bird sighting of Virginia Rail at Brown's Lake in Woodbury County, 1998
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1998-01-01
|
2000-11-24
|
Rare birds documentation form
|
Records Committee review of a Virginia Rail at Brown's Lake in Woodbury County, IA on January 1, 1998. Includes a record review document with votes and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Virginia Rail
|
Browns Lake
|
Brown's L., Woodbury Co., IA
|
marsh with open water
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: The bird was much too small to be a King Rail. Bill shape and pattern on the underparts eliminated Sora, the only other likely species. | The original documentation form event lasted from 08:15:00/08:23:00.
|
Iowa Ornithologists' Union | MS 166
|
9
|
13
|
Records Committee review for rare bird sighting of Black-legged Kittiwake in Lock and Dam 19 in Keokuk, 1995
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1995-12-18
|
2000-11-20
|
Rare birds documentation form
|
Records Committee review of a Black-legged Kittiwake in Lock and Dam 19 in Keokuk in Lee County, IA on December 18, 1995. Includes a record review document with votes and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Black-legged Kittiwake
|
Lock Number 19
|
Lock and Dam 19, Keokuk, Lee Co.
|
below large dam on river
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: The combination of size, bill color, and wing and tail patterns is diagnostic of a first-basic Black-legged Kittiwake. | The original documentation form event lasted from 07:50:00/08:45:00 and 16:10:00/16:30:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
10
|
Records Committee review for rare bird sighting of Red Knot at Saylorville Reservoir, 1995
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1995-09-01
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Red Knot at Saylorville Reservoir in Polk County, IA on September 1, 1995. Includes a record review document with votes, an article in Iowa Bird Life, and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Red Knot
|
Saylorville Lake
|
Saylorville Res., Polk Co.
|
large mudflat
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: The combination of size, bill shape, and wing and tail patterns eliminates all other shorebirds. The most similar species would probably be Sanderling and Dunlin, both of which would be much smaller than this bird. | The original documentation form event lasted from 08:55:00/09:10:00.
|
Iowa Ornithologists' Union | MS 166
|
10
|
1
|
Records Committee review for rare bird sighting of Ruff at Red Rock Wildlife Area, 1998
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1998-10-23
|
2000-11-24
|
Rare birds documentation form
|
Records Committee review of a Ruff at Red Rock Wildlife Area in Marion and Warren Counties, IA on October 23, 1998. Includes a record review document with votes, an Iowa Bird Life article, and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Ruff
|
Red Rock Wildlife Area
|
Runnells Wildlife Area, Marion/Warren Co.'s, IA
|
large mudflat area with shallow pools
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: The combination of size, shape, and plumage was very distinct and eliminated all other shorebirds. The buffy plumage, bill shape, and tail pattern eliminated Lesser Yellowlegs. The larger size, longer legs, bill shape, and plumage eliminated Pectoral Sandpiper. The larger size, very buffy plumage, bill shape, and tail pattern eliminated Stilt Sandpiper. | The original documentation form event lasted from 08:26:00/09:50:00.
|
Iowa Ornithologists' Union | MS 166
|
10
|
9
|
Records Committee review for rare bird sighting of Red Phalarope at Saylorville Reservoir Dam, 1991
|
Administrative records Clippings (information artifacts) Correspondence Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1991-08-04
|
1996-01-25
|
Rare birds documentation form
|
Records Committee review for a Red Phalarope at Saylorville Reservoir Dam in Polk County, IA on August 4, 1991. Includes a record review document with votes, an article in Iowa Bird Life, correspondence from Stephen J. Dinsmore to the IOU committee, two photographs with two photocopies of them, and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Red Phalarope
|
Saylorville Dam
|
Saylorville Reservoir, Polk Co., IA-above dam
|
swimming on lake near rocky dam face
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: The general body shape and swimming behavior identified the bird as a phalarope. The unstreaked, gray mantle, thicker, bicolored bill, and buffy wash on the underparts eliminates Red-necked and Wilson's phalaropes. | The original documentation form event lasted from 10:38:00/10:52:00 and 10:59:00/11:14:00.
|
Iowa Ornithologists' Union | MS 166
|
10
|
12
|
Records Committee review for rare bird sighting of Lesser Black-backed Gull at Red Rock Dam, 1996
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-11-27
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Lesser Black-backed Gull at Red Rock Dam in Marion County, IA on November 27, 1996. Includes a record review document with votes and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Lesser Black-backed Gull
|
Red Rock Dam
|
below Red Rock dam, Marion Co., IA
|
dam tailwaters
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: The most similar-appearing species is first-basic Herring Gull. The combination of slightly smaller size, longer wings, whiter rump, more speckled mantle, contrast between the darker mantle and lighter head, and darker upperwings lacking a pale "window" eliminated Herring Gull in first-basic plumage. | The original documentation form event lasted from 15:22:00/15:40:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
5
|
Records Committee review for rare bird sighting for Hoary Redpoll at Ames, 1996
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-02-28
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Hoary Redpoll at Ames in Story County, IA on February 28, 1996. Includes a record review document with votes and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Hoary Redpoll
|
Ames
|
our feeder in Ames, Story Co., IA
|
feeder
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: The only similar species is Common Redpoll. The Combination of overall paleness, pale rump, mostly unstreaked undertail covers, smaller crown patch, and bill size and shape were used to eliminate Common Redpoll. | The original documentation form event lasted from 09:35:00/10:00:00.
|
Iowa Ornithologists' Union | MS 166
|
14
|
16
|
Records Committee review for rare bird sighting of Red Phalarope at Saylorville Reservoir, 1995
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1995-09-19
|
2000-11-20
|
Rare birds documentation form
|
Records Committee review of a Red Phalarope at Saylorville Reservoir in Polk County, IA on September 19, 1995. Includes a record review document with votes, an article of Iowa Bird Life, and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Red Phalarope
|
Saylorville Lake
|
Saylorville Res., Polk Co.
|
large mudflat at north end of reservoir
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: The only similar species is Red-necked Phalarope, which was eliminated by bill size and shape, larger body size, and mantle pattern. | The original documentation form event lasted from 14:10:00/14:23:00.
|
Iowa Ornithologists' Union | MS 166
|
10
|
12
|
Records Committee review for rare bird sighting of Laughing Gull at Saylorville Reservoir, 1995
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1995-10-19
|
2000-11-20
|
Rare birds documentation form
|
Records Committee review for a Laughing Gull at Saylorville Reservoir in Polk County, IA on October 19, 1995. 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
|
Saylorville Lake
|
Saylorville Reservoir, Polk Co.
|
large reservoir
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: The only species of confusion was Franklin's Gull. The larger size, wing pattern, tail pattern, and bill size and shape all eliminated Franklin's Gull, many of which were nearby for comparisons. | The original documentation form event lasted from 09:40:00/10:32:00 and 13:45:00/14:20:00.
|
Iowa Ornithologists' Union | MS 166
|
10
|
18
|
Records Committee review for rare bird sighting for Eurasian Collared Dove at Ankeny, 1999
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1999-08-18
|
2000-11-28
|
Rare birds documentation form
|
Records Committee review for an Eurasian Collared Dove at Ankeny in Polk County, IA on August 18, 1999. Includes a record review document with votes and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Eurasian Collared Dove
|
Ankeny
|
Ankeny, Polk County, Iowa
|
urban neighborhood
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: The pale coloration and black collar eliminate all doves except Eurasian Collared-Dove and Ringed Turtle-Dove. The combination of larger size, darker gray undertail coverts, and darker primaries eliminates Ringed Turtle-Dove from consideration. | The original documentation form event lasted from 11:04:00/11:10:00.
|
Iowa Ornithologists' Union | MS 166
|
12
|
9
|
Records committee review for rare bird sighting of Snowy Plover at Oak Grove Recreation Area at Saylorville Reservoir, 1996
|
Administrative records Clippings (information artifacts) Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-05-03
|
2000-11-22
|
Rare birds documentation form
|
Records committee review of a Snowy Plover at Oak Grove Recreation Area at Saylorville Reservoir in Polk County, IA on May 3, 1996. Includes a record review document with votes, a photo, an article in Iowa Bird Life, and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Snowy Plover
|
Oak Grove Recreation Area
|
Saylorville Res., Polk Co., IA-Oak Grove Beach
|
sandy beach
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: The plover shape, size, and overall color were enough to eliminate all shorebirds except Piping. [sic] Plover. Piping Plover was eliminated by the dark legs and bill, pattern of black on the head, and bill shape. | The original documentation form event lasted from 10:00:00/10:21:00.
|
Iowa Ornithologists' Union | MS 166
|
9
|
18
|
Records Committee review for rare bird sighting of Red-throated Loon at Red Rock Reservoir, 1996
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-11-27
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Red-throated Loon at Red Rock Reservoir in Marion County, IA on November 27, 1996. Includes a record review document and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Red-throated Loon
|
Lake Red Rock
|
Red Rock Reservoir, Marion Co., IA
|
large lake
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: The size and shape were clearly those of a loon. The combination of small size, thin, upturned bill, paler head, and speckled mantle eliminates other species. | The original documentation form event lasted from 16:23:00/16:45:00.
|
Iowa Ornithologists' Union | MS 166
|
7
|
5
|
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
|
1995-11-16
|
2000-11-20
|
Rare birds documentation form
|
Records Committee review for a Red-throated Loon at Saylorville Reservoir in Polk County, IA on November 16-17, 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. | Elimination of similar species: The smaller size, neck pattern, and bill shape and size eliminated other species of loons. | The original documentation form event lasted from 15:48:00/16:10:00.
|
Iowa Ornithologists' Union | MS 166
|
7
|
5
|
Records Committee review for rare bird sighting of Mew Gull at Saylorville Reservoir, 1996
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-11-29
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review of a Mew Gull at Saylorville Reservoir in Polk County, IA on November 29, 1996. 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
|
Saylorville Lake
|
Saylorville Reservoir, Polk Co., IA
|
large reservoir
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: The wing pattern, size, and lack of black marks on the face eliminated any of the smaller gulls (i.e. Bonaparte's). The small size and smaller bill size eliminated California Gull. Ring-billed Gull was eliminated on the basis of the darker mantle and upperwings, large, dark eye, and bill color and shape. | The original documentation form event lasted from 16:03:00/16:41:00.
|
Iowa Ornithologists' Union | MS 166
|
10
|
23
|
Records Committee review for rare bird sighting of Pacific Loon at Little Wall Lake, 1990
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1990-10-23
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review for a Pacific Loon at Little Wall Lake in Hamilton County, IA on October 23, 1990. Includes a record review document with votes and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Pacific Loon
|
Little Wall Lake
|
Little Wall L., Hamilton Co.
|
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: This smaller loon was dark gray across the back and wings, slightly darker than the Common Loon with it. [...] The whole neck pattern was much different and cleaner looking than the Common Loon. The bill was dark, short, and straight. It was about 1/3 shorter than the bill of the Common Loon and had a stockier appearance. [...] Common Loon eliminated above. Red-throated Loon eliminated by the dark back, neck pattern, and bill size and shape. | The original documentation form event lasted from 11:06:00/11:45:00.
|
Iowa Ornithologists' Union | MS 166
|
7
|
7
|
Records Committee review for rare bird sighting for Bullock's Oriole at Lake Red Rock, 1995
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1995-09-03
|
2000-11-20
|
Rare birds documentation form
|
Records Committee review for a Bullock's Oriole at Lake Red Rock in Marion County, IA on September 3, 1995. Includes a record review document with votes, an article in Iowa Bird Life, and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Bullock's Oriole
|
Lake Red Rock
|
Red Rock Res., Marion Co.
|
forest along lake
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. Another observer include Jim Sinclair. | Elimination of similar species: See above. Baltimore Oriole has a solid black hood and dark wings. | The original documentation form event lasted from 08:35:00/08:36:00.
|
Iowa Ornithologists' Union | MS 166
|
14
|
11
|
Records Committee review for rare bird sighting of Marbled Murrelet at Whitebreast Cove at Red Rock Reservoir, 1991
|
Administrative records Clippings (information artifacts) Correspondence Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1991-12-12
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review for a Marbled Murrelet at Whitebreast Cove at Red Rock Reservoir in Marion County, IA on December 12, 1991. Includes a record review document with votes, field notes, an article in Iowa Bird Life, correspondence relevant to bird sighting and review, and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Marbled Murrelet
|
Whitebreast Recreation Area
|
Red Rock Reservoir, Marion Co.-off Whitebreast Cove
|
large patch of open water on reservoir
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. Another observer was Brian Warson. | Elimination of similar species: The bird was clearly an alcid. The small size rules out the murres, Razorbill, and guillemots (see earlier discussion). The long, thin bill eliminates Dovekie, Ancient Murrelet, and all of the auklets. The bill shape, dark cap that included the eye, and presence of two white patches on each side eliminates all other murrelets, especially Kittlitz's. | The original documentation form event lasted from 15:15:00/15:24:00.
|
Iowa Ornithologists' Union | MS 166
|
12
|
5
|
Records Committee review for rare bird sighting for Palm Warbler southeast of Boone, 1996
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-12-09
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Palm Warbler southeast of Boone in Boone County, IA on December 9, 1996. Includes a record review document with votes and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Palm Warbler
|
Boone
|
se of Boone, Boone Co.
|
rural yard
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. Another observer was Karl Jungbluth. | Elimination of similar species: The combination of tail-bobbing, yellow vent, white eyebrow, unmarked wings, and streaked underparts eliminates all other warblers, especially Yellow-rumped, Prairie, Pine, and Cape May warblers. | The original documentation form event lasted from 08:10:00/08:14:00.
|
Iowa Ornithologists' Union | MS 166
|
13
|
23
|
Records Committee review for rare bird sighting of Mew Gull at Saylorville Reservoir, 1998
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1998-12-20
|
2000-11-24
|
Rare birds documentation form
|
Records Committee review for a Mew Gull at Saylorville Reservoir in Polk County, IA on December 20, 1998. Includes a record review document with votes and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Mew Gull
|
Saylorville Lake
|
Saylorville Reservoir, Polk County, Iowa
|
feeding in spillway and resting on large reservoir
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. Another observer was Kay Niyo. | Elimination of similar species: The only similar species (Ring-billed Gull) was eliminated by the combination of slightly smaller size, smaller bill, more extensive brown color on the underparts, and pattern of the rectrices. | The original documentation form event lasted from 13:46:00/14:08:00.
|
Iowa Ornithologists' Union | MS 166
|
10
|
23
|
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.
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Iowa Ornithologists' Union | MS 166
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7
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5
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Records Committee review for rare bird sighting of Laughing Gull at Oak Grove Beach at Saylorville Reservoir, 1990
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Administrative records Field notes Photographs
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Bird watching Ornithology Ornithology--Societies, etc
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1990-04-13
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1993-07-17
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Rare birds documentation form
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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.
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Dinsmore, Stephen J.
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Laughing Gull
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Oak Grove Recreation Area
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Oak Grove Beach, Saylorville Reservoir, Polk Co., IA
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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.
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Iowa Ornithologists' Union | MS 166
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10
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