|
Records Committee review for rare bird sighting for Black-and-white Warbler at Ames, 1981
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1981-02-19
|
1993-08-16
|
Rare birds documentation form
|
Records Committee review for a Black-and-white Warbler at Ames in Story County, IA on February 19, 1981. Includes a record review document with votes, a summary of the review, and two documentation forms submitted to the committee.
|
Nuss, Richard F.
|
Black-and-white Warbler
|
Ames
|
Pine trees behind Old Botany Building I.S.U. Ames, Iowa
|
in pine tree.
|
The documentation form by Richard Nuss forms the basis of this record. Another documentation form by Margaret Oard was submitted. | Elimination of similar species: Black poll - streaked with white on head Magnolia warb - no yellow Yellow rumped - no yellow Pine siskin - beak no right and coloration was black + white not brown + white. No yellow | The original documentation form event occurred lasted from 09:50:00/09:51:00.
|
Iowa Ornithologists' Union | MS 166
|
13
|
24
|
|
Records Committee review for rare bird sighting for Black-headed Grosbeak at Elkhart, 1982
|
Administrative records Correspondence Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1982-11-23
|
1993-09-01
|
Rare birds documentation form
|
Records Committee review for a Black-headed Grosbeak at Elkhart in Polk County, IA on November 23, 1982. Includes a record review document with votes, a letter from Bruce Peterjohn to Tom Kent, a summary of the review, and a documentation form submitted to the committee.
|
Mosman, Dean
|
Black-headed Grosbeak
|
Elkhart
|
2 M.E. Elkhart, IA
|
in wooded area
|
The documentation form by Darwin (Dean) Mosman is the only one submitted and forms the basis of this record. Other observers include Mike Mosman and Diane Mosman. | Elimination of similar species: Female Rose-breasted Grosbeak only species close to same appearance. No voice heard, behavior and habitat the same. Color and streaking only difference. | The original documentation form event lasted from 07:15:00/07:30:00.
|
Iowa Ornithologists' Union | MS 166
|
14
|
3
|
|
Records Committee review for rare bird sighting of Black-necked Stilt at Storm Lake, 1994
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1994-09-05
|
1996-04-25
|
Rare birds documentation form
|
Records Committee review of two Black-necked Stilts at Storm Lake in Buena Vista County, IA on September 5, 1994. Includes a record review document with votes and a documentation form submitted to the committee.
|
Petersen, Peter C.
|
Black-necked Stilt
|
Storm Lake
|
Storm Lake, Buena Vista Co. IA
|
Island in lake & flying over lake.
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Brian Blevins, Corey Blevins, and Kelly McKay. | Elimination of similar species: No other shorebird is at all similar. | The original documentation form event lasted from 09:02:00/09:04:00.
|
Iowa Ornithologists' Union | MS 166
|
9
|
20
|
|
Records Committee review for rare bird sighting of American Woodcock at Cedar Rapids, 1997
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1997-01-04
|
2000-11-24
|
Rare birds documentation form
|
Records Committee review for an American Woodcock at Cedar Rapids in Linn County, IA on January 4, 1997. Includes a record review document with votes and a documentation form submitted to the committee.
|
McKay, Kelly
|
American Woodcock
|
Cedar Rapids
|
Cedar Rapids
|
It flew over us. Sitting on ground at base of rocky bluff in a nature bluff forest, before it flushed
|
The documentation form by Kelly J. McKay is the only one submitted and forms the basis of this record. Other observers include Mark Bollinger. | Elimination of similar species: Common Snipe - Wrong habitat; American Woodcock, much larger. | The original documentation form event lasted from 05:30:00/05:30:05.
|
Iowa Ornithologists' Union | MS 166
|
10
|
10
|
|
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 Black-legged Kittiwake at Lake Macbride, 1992
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1992-03-15
|
1994-10-18
|
Rare birds documentation form
|
Records Committee review for a Black-legged Kittiwake at Lake Macbride in Johnson County, IA on March 15, 1992. Includes a record review document with votes and a documentation form submitted to the committee.
|
Scheib, James
|
Black-legged Kittiwake
|
Lake MacBride
|
South arm of Lake Macbride, Johnson Co.
|
Lake
|
The documentation form by James Scheib is the only one submitted and forms the basis of this record. | Elimination of similar species: I was thinking that it was a Boneparte's [sic] Gull, but the bill was the wrong color and the gray hood was prominent like in the field guide for the Black-legged Kittiwake. I believe the BLK is the only gull that has the eye crescent, the gray hood, and a yellow bill. | The original documentation form event lasted from approximately 10:00:00/10:05:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
10
|
|
Records Committee review for rare bird sighting of Great Black-backed Gull at Black Hawk Lake, 1994
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1994-10-23
|
1996-04-25
|
Rare birds documentation form
|
Records Committee review for a Great Black-backed Gull at Black Hawk Lake in Sac County, IA on October 23, 1994. Includes a record review document with votes and a documentation form submitted to the committee.
|
Ernzen, Peter
|
Great Black-backed Gull
|
Black Hawk Lake
|
Black hawk Lake
|
Lake
|
The documentation form by Pete Ernzen is the only one submitted and forms the basis of this record. Other observers include Bob Livermore. | Elimination of similar species: [...] Because I did not see the bird from front I could not eliminate other species - However due to its extreme size I eliminated all other species. | The original documentation form event lasted from 10:34:00/10:34:30.
|
Iowa Ornithologists' Union | MS 166
|
11
|
8
|
|
Records Committee review for rare bird sighting of Lesser Black-backed at Red Rock Lake, 1994
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1994-10-29
|
1996-04-25
|
Rare birds documentation form
|
Records Committee review for a Lesser Black-backed Gull at Red Rock Lake in Marion County, IA on October 29, 1994. Includes a record review document with votes and a documentation form submitted to the committee.
|
Armstrong, Eugene
|
Lesser Black-backed Gull
|
Lake Red Rock
|
Red Rock Lake
|
Lake
|
The documentation form by Eugene Armstrong is the only one submitted and forms the basis of this record. Other observers include Eloise Armstrong, Cal Knight, Bernie Knight, Maridel Jackson, and Barb Bettis. | Elimination of similar species: Ringbills never have a scaly pattern over the back or an all black bill. Smaller than a herring gull. Herrings only have a black bill when they are in brown juvenile plumage. 1st summer herring has a 2/3rds pink bill. | The original documentation form event lasted from 11:15:00/11:35:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
5
|
|
Records Committee review for rare bird sighting of Jaeger species at Saylorville Reservoir, 1988
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1988-09-28
|
1993-08-04
|
Rare birds documentation form
|
Records Committee review of a Jaeger species at Saylorville Reservoir in Polk County, IA on September 28, 1988. Includes a record review document with votes and a documentation form submitted to the committee.
|
Armstrong, Eloise
|
Jaegers
|
Saylorville Lake
|
Saylorville Lake
|
Lake
|
The documentation form by Eloise Armstrong is the only one submitted and forms the basis of this record. Other observers include Eugene Armstrong and Steve Dinsmore. | Elimination of similar species: [...] Bigger than a coot that he made 3 passes at and tried to kill. | The original documentation form event lasted from 14:00:00/15:00:00.
|
Iowa Ornithologists' Union | MS 166
|
10
|
13
|
|
Records Committee review for rare bird sighting for Barrow's Goldeneye at Forney Lake, 1984
|
Administrative records Clippings (information artifacts) Field notes Forms (documents)
|
Bird watching Ornithology Ornithology--Societies, etc
|
1984-03-17
|
1993-09-01
|
Rare birds documentation form
|
Records Committee review for a Barrow's Goldeneye at Forney Lake in Fremont County, IA on March 17, 1984. Includes a record review document with votes, two articles in Iowa Bird Life, a summary of the review, and thirteen documentation forms submitted to the committee.
|
Nolan, Michael
|
Barrow's Goldeneye
|
Forneys Lake
|
Forney's Lake, Fremont Co.
|
Lake
|
The documentation form by Michael Nolan is the earliest and the one that forms the basis of this record. Other documentation forms by Ross Silcock, Beth Proescholdt, Francis L. Moore, Bob Myers, Peter C. Petersen, Barbara Wilson, Carl J. Bendorf, Thomas J. Staudt, Thomas H. Kent, Dennis Thompson as well as Eugene and Eloise Armstrong were submitted later. Other observers include Linda Zalewski, Steve Dinsmore, Tanya Bray, Babs Padelford, Loren Padelford, Joseph Schaufenbuel, Lewis Blevins, Corey Blevins, Brian Blevins, Paul Johnsgard, Roger Sherp, Phyllis Harris, Marilyn Lekwa, B.J. Rose, and Sharon Rose. | Elimination of similar species: Common Goldeneye - see above. | The original documentation form event lasted from 16:30:00/16:45:00.
|
Iowa Ornithologists' Union | MS 166
|
8
|
21
|
|
Records Committee review for rare bird sighting of Magnificent Frigatebird at Red Rock Reservoir, 1988
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc Wildlife conservation
|
1988-10-03
|
1996-04-24
|
Rare birds documentation form
|
Records Committee review of a Magnificent Frigatebird at Red Rock Reservoir in Marion County, IA on October 3, 1988. Includes a record review document with votes, an article Iowa Bird Life, two pages from Iowa Birdlife by Gladys Black, internal correspondence on the sighting, and a documentation form submitted to the committee.
|
Youngblut, David
|
Magnificent Frigatebird
|
Lake Red Rock
|
Red Rock Reservoir
|
Lake
|
The documentation form by David Youngblut is the earliest and the one that forms the basis of this record. Other observers include Gladys Black. | The original documentation form event lasted from 17:00:00/17:30:00.
|
Iowa Ornithologists' Union | MS 166
|
7
|
15
|
|
Records Committee review for rare bird sighting of Great Cormorant at Rice Lake, 1996
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-09-08
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Great Cormorant at Rice Lake in Worth County, IA on September 8, 1996. Includes a record review document with votes and two documentation forms submitted to the committee.
|
Bangma, Jim
|
Great Cormorant
|
Rice Lake
|
Rice Lake
|
Lake
|
The documentation form by Jim Bangma is the earliest and the one that forms the basis of this record. Another documentation form by Ann Johnson was submitted later. | Elimination of similar species: Double-crested is smaller, with a much thinner neck. There is a noticeable transition from the thin neck to the larger head. In this bird, there was no noticeable widening from the neck to the head. Additionally, Double-crested has a proportionally much smaller and weaker bill. Double-crested's forehead slopes more evenly into the bill. While these differences may be difficult to see in single birds without comparative experience, in direct comparison they are significant. Additionally, the orange facial skin combines with the gular pouch to accentuate the overall orange color of the face. Other extralimital black cormorants can be ruled out on size alone, additionally, most have thinner necks and smaller bills than even Double-crested. | The original documentation form event lasted from 11:00:00/11:02:00.
|
Iowa Ornithologists' Union | MS 166
|
7
|
13
|
|
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 Pacific Loon at Black Hawk Lake, 1994
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1994-11-07
|
1996-04-25
|
Rare birds documentation form
|
Records Committee review of a Pacific Loon at Black Hawk Lake in Sac County, IA on November 7, 1994. Includes a record review document with votes and a documentation form submitted to the committee.
|
Ernzen, Peter
|
Pacific Loon
|
Black Hawk Lake
|
SE Corner of Blackhawk Lake in Sac Co.
|
Lake
|
The documentation form by Pete Ernzen is the only one submitted and forms the basis of this record. | Elimination of similar species: Common Loon longer no chin strap -neck border indistinct - Red-throated Loon bill upturned, white above eye speckled back. | The original documentation form event lasted from 16:22:00/16:35:00.
|
Iowa Ornithologists' Union | MS 166
|
7
|
7
|
|
Records Committee review for rare bird sighting of Laughing Gull at Lake Rathbun, 1991
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1991-06-04
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review for a Laughing Gull at Lake Rathbun in Appanoose County, IA on June 4, 1991. Includes a record review document with votes and a documentation form submitted to the committee.
|
Cummins, Raymond L.
|
Laughing Gull
|
Rathbun Lake
|
Lake Rathbun Appanoose Co.
|
Lake and shore.
|
The documentation form by Raymond Cummins is the only one submitted and forms the basis of this record. | Elimination of similar species: Of the medium sized Gulls only Ring-billed, Franklin's, and Mew Gulls have similar juvenile plumages. The direct size comparison, seen gull being smaller, bill shape and dark color, and lack of white in head eliminates Ring-billed Gull. Mew Gull is eliminated by long dark bill, Ring-billed like jist of bird in flight, and uniform overall color. The long down turned bill and the total improbability of a juvenile Franklin's being in southern Iowa on this date. | The original documentation form event lasted from 10:19:00/10:30:30 on June 4, 1991 and 09:30:00/09:35:00 on June 5, 1991.
|
Iowa Ornithologists' Union | MS 166
|
10
|
18
|
|
Records Committee review for rare bird sighting of Ruff east of Tabor, 1982
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1982-09-08
|
1999-10-15
|
Rare birds documentation form
|
Records Committee review for a Ruff east of Tabor in Fremont County, IA on September 8, 1982. Includes a record review document with votes, articles in Iowa Bird Life and American Birds, and five documentation forms submitted to the committee.
|
Silcock, W. Ross
|
Ruff
|
Tabor
|
4 miles east of Tabor, in Fremont County
|
Lake Mar-I-War, being a waste disposal pond at Mar-I-War Farms' hog operation.
|
The documentation form by W. Ross Silcock forms the basis of this record. Other documentation forms by Tanya Bray, Barbara L. Wilson, Thomas H. Kent, and Joe Schaufenbuel were submitted. Other observers include Lynn Schaufenbuel, Peter Petersen, and B.J. Rose. | Elimination of similar species: Lesser Yellowlegs, and Pectoral, Western, Least, and Semipalmated Sandpipers.
|
Iowa Ornithologists' Union | MS 166
|
10
|
9
|
|
Records Committee review for rare bird sighting of Black-headed Gull at Crandalls Beach at Spirit Lake, 1998
|
Administrative records Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1998-10-11
|
2000-11-24
|
Rare birds documentation form
|
Records Committee review of a Black-headed Gull at Crandalls Beach at Spirit Lake in Dickinson County, IA on October 11, 1998. Includes a record review document with votes, a photograph, and two documentation forms submitted to the committee.
|
Schoenewe, Lee A.
|
Black-headed Gull
|
Crandalls Beach
|
Crandall's Beach on Spirit Lake, Dickinson Co.
|
lake shore
|
|
Iowa Ornithologists' Union | MS 166
|
10
|
21
|
|
Records Committee review for rare bird sighting of Sabine's Gull at Sandpiper Beach at Saylorville Reservoir, 1997
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1997-09-07
|
2000-11-24
|
Rare birds documentation form
|
Records Committee review for a Sabine's Gull in Sandpiper Beach at Saylorville Reservoir in Polk County, IA on September 7, 1997. Includes a record review document with votes and a documentation form submitted to the committee.
|
Engebretsen, Bery
|
Sabine's Gull
|
Sandpiper Recreation Area
|
Saylorville - Sandpiper Beach
|
lake shore
|
The documentation form by Bery Engebretsen is the only one submitted and forms the basis of this record.| Elimination of similar species: Kittiwake's in this plummage [sic] would have black collar, wing pattern different Franklin's, Laughing have much different wing pattern | The original documentation form event lasted from 09:15:00/09:25:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
9
|
|
Record Committee review for rare bird sighting of Thayer's Gull at Gray's Lake, 1991
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1991-11-30
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at Gray's Lake in Polk County, IA on November 30, 1991. Includes a record review document with votes and a documentation form submitted to the committee.
|
Cecil, Robert I.
|
Thayer's Gull
|
Grays Lake
|
Gray's Lake, Des Moines, Polk County, IA
|
Lake with some open water
|
The documentation form by Bob Cecil is the only one submitted and forms the basis of this record. Another observer includes Mary Michelle Cecil. | Elimination of similar species: Herring much more "contrasty", including dark secondary bar, dark tail band, very dark towards ends of primaries. This bird was smaller than 1st wither [sic] Herring, as well as paler brown. | The original documentation form event lasted from 10:30:00/11:00:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Barrow's Goldeneye at De Soto National Wildlife Refuge, 1999
|
Administrative records Field notes Forms (documents)
|
Bird watching Ornithology Ornithology--Societies, etc
|
1999-02-28
|
2000-11-28
|
Rare birds documentation form
|
Records Committee review of a Barrow's Goldeneye at De Soto National Wildlife Refuge in Harrison County, IA on February 28, 1999. Includes a record review document with votes and a documentation form submitted to the committee.
|
Obrecht, Josh
|
Barrow's Goldeneye
|
DeSoto National Wildlife Refuge
|
De Soto Bend national WIldlife Refuge Missouri Valley, Iowa
|
Lake, Forest
|
The documentation form by Josh Obrecht is the earliest and the one that forms the basis of this record. Other observers include Dave Obrecht. | Elimination of similar species: Common Goldeneye. I eliminated this species out because the bird I saw had only a little white on the speculum and a large yellow eye with a small pupil. The common Goldeneye has a lot of white on the speculum and a large pupil in the eye. | The original documentation form event lasted from 16:00:00/16:15:00.
|
Iowa Ornithologists' Union | MS 166
|
8
|
21
|
|
Records Committee review for rare bird sighting of Northern Gannet at Diamond Lake, 1983
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1983-07-09
|
1993-09-01
|
Rare birds documentation form
|
Records Committee review for a Northern Gannet at Diamond Lake in Poweshiek County, IA on July 9, 1983. Includes a record review document with votes, a summary of the review, and a documentation form submitted to the committee.
|
Webber, David
|
Northern Gannet
|
Diamond Lake
|
Diamond Lake Park (1/2 mile west of Montezuma, Ia.)
|
Lake, wetland
|
The documentation form by David Webber is the only one submitted and forms the basis of this record. | Elimination of similar species: Caspian Tern - This tern does not have the black wingtips sharply contrasting to the white wings and is generally smaller in size. | The original documentation form event lasted from 12:00:00/13:00:00.
|
Iowa Ornithologists' Union | MS 166
|
7
|
10
|
|
Records Committee review for rare bird sighting of Red Phalarope at Spirit Lake, 1996
|
Administrative records Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-11-03
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review of a Red Phalarope at Spirit Lake in Dickinson County, IA on November 3, 1996. Includes a record review document with votes, three photos (one is a photocopy), and two documentation forms submitted to the committee.
|
Schoenewe, Lee A.
|
Red Phalarope
|
Spirit Lake
|
SE corner of Big Spirit Lake, Dickinson Co.
|
Lakeshore
|
The documentation form by Lee A. Schoenewe forms the basis of this record. Another documentation form by Ed Thelen was submitted. Other observers include Nancy Schoenewe, Harold White, Doug Harr, and Tim Waltz. | Elimination of similar species: Red-necked Phalarope - Bill shape and solid gray back. | The original documentation form event lasted from 15:30:00/16:45:00.
|
Iowa Ornithologists' Union | MS 166
|
10
|
12
|
|
Records Committee review for rare bird sighting of Tricolored Heron at IPL Ponds, 1991
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1991-05-04
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review of a Tricolored Heron at the Iowa Power and Light settling ponds, in Council Bluffs, IA on May 4, 1991. Includes a record review document with votes, an Iowa Bird Life article, and a documentation form submitted to the committee.
|
Greer, Janet
|
Tricolored Heron
|
MidAmerican Energy Ponds
|
Iowa Power and Light settling ponds, Council Bluffs, IA
|
lakeshore
|
The documentation form by Janet Greer is the earliest and the one that forms the basis of this record. Other observers include Marge Graf, Dutch Graf, and Mary Jo Harlow. | Elimination of similar species: Great Blue Heron: Eliminated by bill color, rusty feathers on the breast, white belly and leg color, and dark face and crown. Little Blue Heron: Eliminated by size, rusty wing coverts, and white chin. | The original documentation form event lasted from 11:30:00/12:40:00.
|
Iowa Ornithologists' Union | MS 166
|
7
|
18
|
|
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
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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.
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Iowa Ornithologists' Union | MS 166
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11
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1
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Records Committee review for rare bird sighting of Jaeger species at Jester Park at Saylorville Reservoir, 1987
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Administrative records Field notes
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Bird watching Ornithology Ornithology--Societies, etc
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1987-10-27
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1993-09-07
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Rare birds documentation form
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Records Committee review for a Jaeger species bird at Jester Park at Saylorville Reservoir in Polk County, IA on October 27, 1987. Includes a record review document with votes and a documentation form submitted to the committee.
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Dinsmore, Stephen J.
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Jaegers
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Jester Park
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Saylorville Reservoir, Polk Co.-off Jester Park
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landed with other gulls roosting on reservoir
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The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: The body color and wing pattern eliminates all other larids. I was not able to identify the bird to species because of the poor light. | The original documentation form event lasted from 16:56:00/17:21:00.
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Iowa Ornithologists' Union | MS 166
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10
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13
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