|
Records Committee review for rare bird sighting of Curlew Sandpiper at Cedar Lake, 1985
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1985-05-10
|
1993-09-03
|
Rare birds documentation form
|
Records Committee review for a Curlew Sandpiper at Cedar Lake in Chickasaw County, IA on May 10, 1985. Includes a record review document with votes, an article in Iowa Bird Life and a documentation form submitted to the committee.
|
Moore, Francis L.
|
Curlew Sandpiper
|
Cedar Lake
|
Cedar Lake on Cedar River at Nashua, Chickasaw Co., Iowa
|
Open mud flat with sparse emergent vegetation near open lake.
|
The documentation form by Francis L. Moore is the only one submitted and forms the basis of this record. | Elimination of similar species: Red Knot has straight black bill and is larger than Pectoral Sandpiper. Sanderling is about same size but also has a straight black bill not long, thin and decurved as in this bird. | The original documentation form event lasted from 08:45:00/10:45:00.
|
Iowa Ornithologists' Union | MS 166
|
10
|
7
|
|
Records Committee review for rare bird sighting of Common Raven west of Mason City, 1966
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1966-12-28
|
1994-11-04
|
Rare birds documentation form
|
Records Committee review for a Common Raven west of Mason City in Cerro Gordo County, IA on December 28, 1966. Includes a record review document with votes and a documentation article submitted to the committee.
|
Roosa, Dean M.
|
Common Raven
|
Mason City
|
[...] driving from Clear Lake to Mason City
|
|
The documentation article by Dean M. Roosa forms the basis of this record. Other observers include Paul Bailey. | Elimination of similar species: [...] Its flight pattern, size, and rounded or wedge-shaped tail distinguished it from nearby Crows.
|
Iowa Ornithologists' Union | MS 166
|
12
|
47
|
|
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 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 Black-headed Gull at Cherry Glen Recreation Area at Saylorville Reservoir, 1989
|
Administrative records Clippings (information artifacts) Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1989-11-02
|
1993-08-05
|
Rare birds documentation form
|
Records Committee review for a Common Black-headed Gull at Cherry Glen Recreation Area at Saylorville Reservoir in Polk County, IA on November 2, 1989. Includes a record review document with votes, an article in Iowa Bird Life, photocopies of four photographs, and two documentation forms submitted to the committee.
|
Dinsmore, Stephen J.
|
Black-headed Gull
|
Cherry Glen Recreation Area
|
Saylorville Reservoir, Polk Co.-off Cherry Glen Rec. Area
|
large reservoir
|
The documentation form by Steve Dinsmore is the earliest and the one that forms the basis of this record. Another documentation form by B.J. Rose was submitted later. Other observers include Doug Rose, Roger Rose, and Ken Lowder. | Elimination of similar species: Because of the fairly small size and conspicuous dark spot behind each eye, the bird must have been a Bonaparte's, Little, Common Black-headed, or Ross' gull, or a kittiwake. Separation from Bonaparte's Gull is discussed above. Little Gull eliminated by its smaller size, dark bill, lack of any black color on the upperwing, and uniformly dark underside to the flight feathers. Ross' Gull eliminated by tail shape, bill size and color, and darker underwing. Both kittiwakes eliminated by bill color, lighter mantle color, and differences in wing pattern. | The original documentation form event lasted from 16:17:00/16:42:00.
|
Iowa Ornithologists' Union | MS 166
|
10
|
21
|
|
Records Committee review for rare bird sighting of Clark's Grebe at Trumbull Lake, 1994
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1994-05-13
|
1996-04-25
|
Rare birds documentation form
|
Records Committee review for a Clark's Grebe at Trumbull Lake in Clay County, IA on May 13, 1994. Includes a record review document with votes, an Iowa Bird Life, and a documentation form submitted to the committee.
|
Brewer, Marion M.
|
Clark's Grebe
|
Trumbull Lake
|
Trumble Lake
|
Lake
|
The documentation form by Marion W. Brewer is the only one submitted and forms the basis of this record. | Elimination of similar species: Western, White in front, over & behind eye. | The original documentation form event lasted from 12:30:00/12:50:00 and 13:15:00/13:48:00.
|
Iowa Ornithologists' Union | MS 166
|
7
|
9
|
|
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 Clark's Grebe at Saylorville Reservoir, 1987
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1987-10-01
|
1993-09-07
|
Rare birds documentation form
|
Records Committee review for a Clark's Grebe at Saylorville Reservoir in Polk County, IA on October 1, 1987. Includes a record review document with votes and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Clark's Grebe
|
Saylorville Dam
|
Saylorville Reservoir, Polk Co.-above dam
|
resting on large reservoir
|
The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: Western Grebe eliminated on the basis of this birds paler flanks and white color on the face extending well above the eye. I saw numerous Western Grebes at Saylorville this fall, and none of them had nearly as much white on the face as the bird I saw on 1 Oct. | The original documentation form event lasted from 14:35:00/15:05:00.
|
Iowa Ornithologists' Union | MS 166
|
7
|
9
|
|
Records Committee review for rare bird sighting of Clark's Grebe at Pleasant Creek Lake, 1995
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1995-11-12
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Clark's Grebe at Pleasant Creek Lake in Linn County, IA on November 12, 1995. Includes a record review document with votes, an article in Iowa Bird Life, and three documentation forms submitted to the committee.
|
Edwards, Chris
|
Clark's Grebe
|
Pleasant Creek State Park
|
Pleasant Creek State Recreation Area, Linn Co.
|
Lake
|
The documentation form by Chris Edwards is the earliest and the one that forms the basis of this record. Other documentation forms by Thomas H. Kent and Jim Fuller were submitted later. Other observers include Alan Martin, Pete Wickham, John Daniel, Dick Tetrault, Dale Fye, Jim Scheib, Eloise Armstrong, Eugene Armstrong, and Helen Fye. | Elimination of similar species: Western Grebe has a dull greenish yellow bill; black or gray lores; black or gray surrounding the eye; and a more uniformly dark back and flanks. | The original documentation form event lasted from 10:30:00/11:30:00, 12:30:00/13:15:00, and 13:45:00/15:45:00.
|
Iowa Ornithologists' Union | MS 166
|
7
|
9
|
|
Records Committee review for rare bird sighting of Clark's Grebe at Lost Island Lake, 1998
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1998-11-22
|
2000-11-24
|
Rare birds documentation form
|
Records Committee review for a Clark's Grebe at Lost Island Lake in Palo Alto County, IA on November 22, 1998. Includes a record review document with votes and a documentation form submitted to the committee.
|
Schoenewe, Lee A.
|
Clark's Grebe
|
Lost Island Lake
|
Lost Island Lake, Palo Alto County
|
Open water
|
The documentation form by Lee A. Schoenewe is the only one submitted and forms the basis of this record. another observer was Nancy P. Schoenewe. | Elimination of similar species: Western Grebe - Face pattern with white behind and over the eye; overall light gray body color with white splotching on sides and back. | The original documentation form event lasted from 15:15:00/16:20:00.
|
Iowa Ornithologists' Union | MS 166
|
7
|
9
|
|
Records Committee review for rare bird sighting of Clark's Grebe at Hendrickson Marsh, 1986
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1986-05-30
|
1993-09-07
|
Rare birds documentation form
|
Records Committee review for three Clark's Grebes at Hendrickson Marsh in Story County, IA on May 30, 1986. Includes a record review document with votes, a summary of the review, and two documentation forms submitted to the committee.
|
Martsching, Paul
|
Clark's Grebe
|
Hendrickson Marsh Lake
|
Hendrickson Marsh, Story County, Iowa
|
shallow open water "lake" with quite a bit of marshy area adjacent.
|
The documentation form by Paul Martsching is the earliest and the one that forms the basis of this record. Another documentation form by Steve Dinsmore was submitted later. Other observers include Beth Proescholdt, Mark Proescholdt, and Hank Zaletal. | Elimination of similar species: Western is dark immediately around the eye. Red necked is reddish on front and sides of neck this time of year, with white confined to chin, throat and cheek. | The original documentation form event lasted from 20:00:00/20:30:00.
|
Iowa Ornithologists' Union | MS 166
|
7
|
9
|
|
Records Committee review for rare bird sighting of Clark's Grebe at Diamond Lake, 1997
|
Administrative records Clippings (information artifacts) Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1997-12-13
|
2000-11-24
|
Rare birds documentation form
|
Records Committee review for a Clark's Grebe at Diamond Lake in Poweshiek County, IA on December 13, 1997. Includes a record review document with votes, photos, an Iowa Bird Life article, and five documentation forms submitted to the committee.
|
Allen, Pam Allen, Reid I.
|
Clark's Grebe
|
Diamond Lake
|
Poweshiek County, Diamond Lake Park
|
|
The documentation form by Pam and Reid Allen is the earliest and the one that forms the basis of this record. Other documentation forms by Mark Proescholdt, Thomas H. Kent, Phil Walsh, and Michael D. Overton were submitted later. Other observers include Jim Sinclair, Ann Johnson, Eugene Armstrong, Dixie Overton, Cal Knight, Bernie Knight, and Eloise Armstrong. | Elimination of similar species: The Western Grebe (Aechmorphorus occidentalis) has a much duller, greyish-greenish yellow bill and the body and flanks are blacker. Plus, the black cap extends over the eyes and lores, and there is a more solid blackish cast on the bill. | The original documentation form event lasted from 12:15:00/14:10:00.
|
Iowa Ornithologists' Union | MS 166
|
7
|
9
|
|
Records Committee review for rare bird sighting of Clark's Grebe at Cone Marsh, 1983
|
Administrative records Correspondence Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1983-05-05
|
1993-09-01
|
Rare birds documentation form
|
Records Committee review for a Clark's Grebe at Cone Marsh in Louise County, IA on May 5, 1983. Includes a record review document with votes, correspondence about the bird sighting from Bruce Peterjohn to Thomas H. Kent, and a documentation form submitted to the committee.
|
Sandrock, James P., 1929-
|
Clark's Grebe
|
Cone Marsh Wildlife Management Area
|
Cone Marsh (Louisa County)
|
Marsh; open pond.
|
The documentation form by James P. Sandrock is the earliest and the one that forms the basis of this record. Another observer includes James G. Huntington. | Elimination of similar species: The bird was significantly larger than Pied-billed Grebe; Eared Grebe; and Horned Grebe. | The original documentation form event lasted from 14:30:00/15:30:00.
|
Iowa Ornithologists' Union | MS 166
|
7
|
9
|
|
Records Committee review for rare bird sighting of Clark's Grebe at Blue Lake, 1999
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1999-05-21
|
2000-11-28
|
Rare birds documentation form
|
Records Committee review for a Clark's Grebe at Blue Lake in Monona County, IA on May 21, 1999. Includes a record review document with votes and three documentation forms submitted to the committee.
|
Allen, Pam Allen, Reid I.
|
Clark's Grebe
|
Blue Lake
|
Monona County, South Blue Lake
|
|
The documentation form by Pam and Reid Allen is the earliest and the one that forms the basis of this record. Other documentation forms by Thomas H. Kent and J. Fuller were submitted later. | Elimination of similar species: The Western Grebes (Aechmorphorus occidentalis) had a much duller, greyish-greenish yellow bill and the body and flanks were blacker. Plus, the black cap extended over the eyes and lores. The Western Grebes seemed to be slightly smaller headed than the Clark's Grebe. | The original documentation form event lasted from 17:30:00/18:30:00.
|
Iowa Ornithologists' Union | MS 166
|
7
|
9
|
|
Records Committee review for rare bird sighting of Clark's Grebe at Big Creek Lake, 1985
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1985-10-12
|
1993-09-03
|
Rare birds documentation form
|
Records Committee review for a Clark's Grebe at Big Creek Lake in Polk County, IA on October 12, 1985. Includes a record review document with votes, an article in Iowa Bird Life, and two documentation forms submitted to the committee.
|
Dinsmore, Stephen J.
|
Clark's Grebe
|
Big Creek State Park
|
Big Creek SP, Polk County in middle of large lake
|
in middle of large lake
|
The documentation form by Steve Dinsmore is the earliest and the one that forms the basis of this record. Other documentation forms by Francis Moore were submitted later. | Elimination of similar species: Western Grebe eliminated by the white on the cheek which extended well above the eye. | The original documentation form event lasted from 16:00:00/16:30:00.
|
Iowa Ornithologists' Union | MS 166
|
7
|
9
|
|
Records Committee review for rare bird sighting of Chukar at Davenport, 1994
|
Administrative records Field notes
|
Bird watching Introduced birds Ornithology Ornithology--Societies, etc
|
1994-12-18
|
1996-04-25
|
Rare birds documentation form
|
Records Committee review for seven Chukars at Davenport in Scott County, IA on December 18, 1994. Includes a record review document with votes and a documentation form submitted to the committee.
|
Decker, Jacqueline Ruth
|
Chukar
|
Davenport
|
Division & Cheyenne Aves. N.W. Davenport, Scott Co., IA
|
urban, near edge of city and ag land.
|
The documentation form by Jacqueline Ruth Decker is the only one submitted and forms the basis of this record. Other observers include Peter C. Petersen and Leonard Decker. | Elimination of similar species: Gray Partridge- bill & legs not red, no white & black pattern on head, throat and sides. | The original documentation form event lasted from 07:45:00/08:30:00.
|
Iowa Ornithologists' Union | MS 166
|
9
|
7
|
|
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 California Gull at Saylorville Dam, 1993
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1993-12-06
|
1995-07-08
|
Rare birds documentation form
|
Records Committee review for a California Gull at Saylorville Dam in Polk County, IA on December 6, 1993. Includes a record review document with votes, an article in Iowa Bird Life, and two documentation forms submitted to the committee.
|
Pinkston, Randall, 1956-
|
California Gull
|
Saylorville Dam
|
Saylorville Reservoir dam, Polk County, Iowa
|
|
The documentation form by Randy Pinkston is the earliest and the one that forms the basis of this record. Another documentation form by Stephen J. Dinsmore was submitted later. Another observer includes Susan Grove. | Elimination of similar species: I am uncomfortable committing to California Gull given the brief and distant view I had, and my limited past experience with the species. My fear is that this was just a small Herring Gull. Herring can be quite variable in overall size, bill size, and in terms of color and shade of the first-winter plumage. Supposedly 10-15% of first-winter Herrings' can have a "dipped-in-ink" bill in the fall (Harrison 1983 or Grant 1986?). | The original documentation form event lasted from 12:30:00/15:30:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
1
|
|
Records Committee review for rare bird sighting of California Gull at Runnells Wildlife Area, 1995
|
Administrative records Clippings (information artifacts) Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1995-09-03
|
2000-11-20
|
Rare birds documentation form
|
Records Committee review for a California Gull at Runnells Wildlife Area in Marion County, IA on September 3, 1995. Includes a record review document with votes, two photographs, an article in Iowa Bird Life, and four documentation forms submitted to the committee.
|
Dinsmore, Stephen J.
|
California Gull
|
Red Rock Wildlife Area
|
1 mi e. of Swan, Marion Co. (Runnells W.A.)
|
pool of shallow water
|
The documentation form by Steve Dinsmore is the earliest and the one that forms the basis of this record. Other documentation forms by Jim Sinclair, Thomas H. Kent, and Jim Fuller were submitted later. | Elimination of similar species: Ring-billed and Herring gulls are the two most likely species of confusion. Ring-billed Gull never shows this much brown in any plumage, has a dark tail band in immature plumages, has a different wing pattern, and is structurally different from California Gull. Herring Gull is more similar in first-basic plumage, but always shows a pale window on the inner primaries, lacks the double dark bar effect in the innerwing, is larger, and very rarely shows a strongly bicolored bill. | The original documentation form event lasted from 10:55:00/12:24:00.
|
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 Oak Grove Beach at Saylorville Reservoir, 1990
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1990-09-08
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review for a California Gull at Oak Grove Beach at Saylorville Reservoir in Polk County, IA on September 8, 1990. Includes a record review document with votes and the article California Gull at Saylorville Reservoir in Iowa Bird Life 61:20 by Stephen Dinsmore reviewed by the committee.
|
Dinsmore, Stephen J.
|
California Gull
|
Oak Grove Recreation Area
|
[...] Oak Grove Beach Recreation Area at Saylorville Reservoir, Polk County.
|
|
The article by Stephen J. Dinsmore forms the basis of this record. | Elimination of similar species: [...]The bird was similar in size to the largest Ring-billed Gulls, but slightly larger than others. I approached closer and noted that, when compared to a Ring-billed Gull, the bird had duller yellow legs, a stouter bill with black and red spots near the tip of the lower mandible, and a darker gray mantle. [...] The bird was slightly larger than most of the Ring-billed Gulls, although one or two of the biggest Ring-billed Gulls were as large as the bird I was studying. Proportionately, the bird was heavier and larger-headed than a Ring-billed Gull. [...] I estimated the mantle color to be about midway between those of Ring-billed Gull and a Lesser Black-backed Gull. [...] The bill was heavier than the bill of a Ring-billed Gull and had a distinct gonys. The legs were pale gray-green, unlike the bright yellow legs of a Ring-billed Gull. Leg length appeared similar to a Ring-billed Gull. | The original documentation form event lasted from 07:45:00/09:27:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
1
|
|
Records Committee review for rare bird sighting of California Gull at Mini-Wakan State Park, 1996
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-09-06
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a California Gull at Mini-Wakan State Park in Dickinson County, IA on September 6, 1996. Includes a record review document with votes, an article in Iowa Bird Life, and a documentation form submitted to the committee.
|
Bangma, Jim Johnson, Ann
|
California Gull
|
Mini Wakan State Park
|
Spirit Lake, north end, Dickinson Co., IA
|
Lakeshore
|
The documentation form by Jim Bangma and Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: Ring-billed is ruled out by the solid gray mantle combined with the extensive molt of the flight feathers. Ring-bills and similar 3 year gulls obtain the gray mantle during a post-juvenal molt. Flight feathers are not molted at this time. Flight feathers are molted after one year, at which time the body of a Ring-bill would be much whiter. Also, the mantle was a much darker shade of gray than any Ring-bill present. Additionally, Ring-billed Gull's bill is proportionally smaller and thinner, with more curve. Herring Gull would be larger. The mantle of a Herring Gull would be paler gray, nearly the same shade as that of the Ring-bills. The bill would be proportionally heavier with a more marked gonydeal angle. Herring Gulls may show a black tipped bill, but the black normally blends into the pink of the base or runs in along the cutting edges of the bill. The bill and legs would be brighter pink. Other similarly sized extralimitals can be ruled out by the mantle color as well as bill pattern and shape. A striking feature of this bird was its leg length. In an effort to better understand this, Bangma paid a visit to the American Museum of Natural History and examined specimens of Herring, Ring-billed and California Gulls. Measurements were made of a representative selection of specimens. The following chart shows the results. [Chart] While there is some overlap between these species, it is interesting to note that the breaking point between California Gull and the other two is very near the ratio of 1.5. While not diagnostic by itself, the length of this bird's tarsus relative to the culmen as estimated by us in the field is indicative of California Gull. | The original documentation form event lasted from 11:00:00/11:40:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
1
|
|
Records Committee review for rare bird sighting of California Gull at Lost Island Lake, 1996
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-11-03
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a California Gull at Lost Island Lake in Palo Alto County, IA on November 3, 1996. Includes a record review document with votes and a documentation form submitted to the committee.
|
Schoenewe, Lee A.
|
California Gull
|
Lost Island Lake
|
N. Shore of Lost Island Lake, Palo Alto, Co.
|
Shoreline
|
The documentation form by Lee A. Schoenewe is the only one submitted and forms the basis of this record. | Elimination of similar species: Herring Gull - bill, eye and leg color Ring-billed Gull - Bill size, tail + wingtips in flight | The original documentation form event lasted from 10:35:00/10:55:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
1
|
|
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 Credit Island, 1989
|
Administrative records Clippings (information artifacts) Correspondence Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1989-11-23
|
1993-07-21
|
Rare birds documentation form
|
Records Committee review for a California Gull at Credit Island in Scott County, IA on November 23, 1989. Includes a record review document with votes, an article in Iowa Bird Life, correspondence about the sighting from Louise Augustine to Carl Bendorf, and three documentation forms submitted to the committee.
|
Augustine, Louise
|
California Gull
|
Credit Island
|
Credit Island - Davenport, Iowa - Scott County
|
This is an unfamiliar Area for me - I have never birded there before - The Place Credit Island - Backwater of Mississippi River - There was some ICE and open water - Many Gulls were in this Backwater area - on ice and in water. Probably around 1,500 Gulls -
|
The documentation form by Louise Augustine forms the basis of this record. Other documentation forms by Peter C. Petersen and Jim Fuller were submitted. Other observers include Randy Pinkston, Mary Lou Petersen, Jerome Augustine, David Augustine, and Julie Augustine. | Elimination of similar species: Herring Gull - darker mantle - Dark eye - Leg Color - ashy-green gray not Pink - smaller size - slimmer build Ring-billed Gull - mantle too dark - dark eye - Bill had only a spot Leg Color not yellow - This bird larger than Ring-billed gulls - | The original documentation form event lasted from 12:00:00/13:00:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
1
|