|
Records Committee review for rare bird sighting for Boreal Chickadee at Des Moines, 1976
|
Administrative records Clippings (information artifacts) Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1976-11-17
|
1996-04-24
|
Rare birds documentation form
|
Records Committee review for a Boreal Chickadee at Des Moines in Polk County, IA on November 17, 1976. Includes a record review document with votes, a photograph, multiple articles from Iowa Bird Life, a request for reconsideration of record, and a documentation form submitted to the committee.
|
Brown, Woodward H.
|
Boreal Chickadee
|
Des Moines
|
Des Moines, IA
|
General: urban, residential Specific: large back yard with both evergreen and deciduous trees and large stand of yew adjacent to feeders
|
The documentation form by Woodward H. Brown is the only one submitted and forms the basis of this record. Other observers include Dick Mooney, Nicholas Halmi, Lurene Warters, and many unidentified observers. | Elimination of similar species: Superficially similar to any of the chickadees | The original documentation form event lasted from 15:45:00/16:15:00.
|
Iowa Ornithologists' Union | MS 166
|
12
|
49
|
|
Records Committee review for rare bird sighting for Brewer's Blackbird at Zirbel Slough, 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 Brewer's Blackbird at Zirbel Slough in Cerro Gordo County, IA on September 8, 1996. Includes a record review document with votes and a documentation form submitted to the committee.
|
Bangma, Jim Johnson, Ann
|
Brewer's Blackbird
|
Zirbel Slough
|
Zirbel Slough, Cerro Gordo Co., IA
|
Marsh
|
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: Rusty Blackbird ruled out by solid black color, deeper call note, bill shape. Grackles ruled out by tail length, bill size and shape and call note. Cowbirds ruled out by eye color, tail length and head/bill shape. | The original documentation form event lasted from 14:00:00/14:01:00.
|
Iowa Ornithologists' Union | MS 166
|
14
|
8
|
|
Records committee review for rare bird sighting of Brown Pelican at De Soto National Wildlife Refuge, 1992
|
Administrative records Clippings (information artifacts) Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1992-05-06
|
1994-10-18
|
Rare birds documentation form
|
Records Committee review for a Brown Pelican at De Soto National Wildlife Refuge in Harrison County, IA on May 6, 1992. Includes a record review document with votes, an article in the Nebraska Bird Review about the sighting, two photographs, and four documentation forms submitted to the committee.
|
Rose, B.J.
|
Brown Pelican
|
DeSoto National Wildlife Refuge
|
DeSoto National Wildlife Refuge, Harrison County, IA, and Washington County, NE. It was on the south end of the oxbow, just above the dam.
|
Missouri River oxbow lake
|
The documentation form by B.J. Rose is the earliest and the one that forms the basis of this record. Other documentation forms by Thomas H. Kent, Jim Fuller, and Peter C. Petersen were submitted later. Other observers include Babs Padelford, Ross Silcock, Dick Tetrault, and Brian Blevins. | Elimination of similar species: White Pelican is white with black wing tips; some were present for comparison. | The original documentation form event lasted from 09:00:00/09:30:00.
|
Iowa Ornithologists' Union | MS 166
|
7
|
11
|
|
Records Committee review for bird sighting of Brown Pelican at Rathbun Reservoir, 1993
|
Administrative records Clippings (information artifacts) Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1993-05-30
|
1999-10-15
|
Rare birds documentation form
|
Records Committee review for a Brown Pelican at Lake Rathbun in Appanoose County, IA on May 30, 1993. Includes a record review document with votes, two photographs, an American Birds article, and a documentation form submitted to the committee.
|
Cummins, Raymond L.
|
Brown Pelican
|
Rathbun Lake
|
Lake Rathbun Island West Boat Ramp
|
Open water
|
The documentation form by Raymond L. Cummins is the only one submitted and forms the basis of this record. Other observers include Bill Heusinkveld, Marj Heusinkveld, Tom Johnson, and Mary Montog. | Elimination of similar species: Nothing I know of. | The original documentation form event lasted from 20:00:00/20:30:00.
|
Iowa Ornithologists' Union | MS 166
|
7
|
11
|
|
Records Committee review for rare bird sighting of Brown Pelican at Lock and Dam 18, 1996
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-11-04
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Brown Pelican at Lock and Dam #18 in Des Moines County on November 4, 1996. Includes a record review document with votes, an article in Iowa Bird Life, an article in an Illinois bird magazine, and a documentation form submitted to the committee.
|
Fuller, James L
|
Brown Pelican
|
Lock and Dam Number 18
|
Lock and Dam #18 Mississippi River (Des Moines County)
|
|
The documentation form by Jim Fuller is the only one submitted and forms the basis of this record. Other observers include Jim Scheib, John Rutenbeck, Myrna Deaton, Bernie Knight, Cal Knight, and Chuck Fuller. | Elimination of similar species: The White Pelican is white with yellow-orange or orange bill. | The original documentation form event lasted from 06:42:00/07:05:00.
|
Iowa Ornithologists' Union | MS 166
|
7
|
11
|
|
Records Committee review for rare bird sighting of Buff-Breasted Sandpiper at Cone Marsh, 1996
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-03-29
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Buff-breasted Sandpiper at Cone Marsh in Louisa County, IA on March 29, 1996 Includes a record review document with votes and a documentation form submitted to the committee.
|
Fuller, James L
|
Buff-breasted Sandpiper
|
Cone Marsh Wildlife Management Area
|
Cone Marsh (Louisa County)
|
|
The documentation form by Jim Fuller is the only one submitted and forms the basis of this record. | Elimination of similar species: Comparisons to Pectoral and Baird's Sandpipers have been made during description. | The original documentation form event lasted from 13:30:00/13:50:00.
|
Iowa Ornithologists' Union | MS 166
|
10
|
8
|
|
Records Committee review for rare bird sighting for Bullock's Oriole at Cedar Falls, 1981
|
Administrative records Correspondence Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1981-12-20
|
2000-11-20
|
Rare birds documentation form
|
Records Committee review for a Bullock's Oriole at Cedar Falls in Black Hawk County, IA on December 20, 1981. Includes a record review document with votes, photographs, e-mail correspondence between Jon Dunn, Jim Fuller, James Rising, David Sibley, and Paul Lehman, and a documentation form submitted to the committee.
|
Myers, Robert K.
|
Bullock's Oriole
|
Cedar Falls
|
Cedar Falls, Iowa - Black Hawk County
|
coming to feeder in residential area
|
The documentation form by Robert K. Myers is the only one submitted and forms the basis of this record. Other observers includes Don Irwin and Paulina Irwin. | Elimination of similar species: The 'Baltimore' subspecies has the yellow-orange on breast going down the breast thru belly and has a more yellowish back. | The original documentation form event lasted from 15:00:00/15:15:00.
|
Iowa Ornithologists' Union | MS 166
|
14
|
11
|
|
Records Committee review for rare bird sighting for Bullock's Oriole at Clemons, 1993
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1993-05-12
|
2000-11-20
|
Rare birds documentation form
|
Records Committee review for a Bullock's Oriole at Clemons in Marshall County, IA on May 12, 1993. Includes a record review document with votes and a documentation form submitted to the committee.
|
Humpal, Holly
|
Bullock's Oriole
|
Clemons
|
403 Market ave - Clemons Iowa
|
Tall Elm - Oak and black walnut trees behind my house. House on edge of town very rural - corn fields on 2 sides of house & a lot of trees behind house.
|
The documentation form by Holly Humpal is the only one submitted and forms the basis of this record. | Elimination of similar species: Baltimore Oriole - Has all Black Head - a Little orange on top part of wing and very small white wing bar and tail pattern has more black at top to sides and wider band. | The original documentation form event lasted from 12:00:00/15:00:00.
|
Iowa Ornithologists' Union | MS 166
|
14
|
11
|
|
Records Committee review for rare bird sighting for Bullock's Oriole at Elk Horn, 1999
|
Administrative records Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1999-12-17
|
2000-11-28
|
Rare birds documentation form
|
Records Committee review for a Bullock's Oriole at Elk Horn in Shelby County, IA on December 17, 1999. Includes a record review document with votes, a photograph, and two documentation forms submitted to the committee.
|
Fuller, James L
|
Bullock's Oriole
|
Elk Horn
|
Yard of Randy and Rhea Leete, Elk Horn, Iowa (Shelby County)
|
|
The documentation form by Jim Fuller is the earliest and the one that forms the basis of this record. Another documentation form by Thomas H. Kent was submitted later. Other observers include Karole Fuller, Mike Overton, Dixie Overton, and Dick Tetrault. | Elimination of similar species: This is the only orange oriole that exhibits a large white wing patch, and a dark eye line on an otherwise orange face. | The original documentation form event lasted from 10:20:00/10:45:00.
|
Iowa Ornithologists' Union | MS 166
|
14
|
11
|
|
Records Committee review for rare bird sighting for Bullock's Oriole at Johnston, 1992
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1992-12-19
|
2000-11-20
|
Rare birds documentation form
|
Records Committee review for a Bullock's Oriole at Johnston in Polk County, IA on December 19, 1992. Includes a record review document with votes and a documentation form (two copies) submitted to the committee.
|
Thompson, Dennis
|
Bullock's Oriole
|
Johnston
|
7503 Wildflower Ct. Johnston, Ia. (My backyard)
|
Feeder set-up (7 feeders, no fruit) at the edge of a wooded ravine less than a mile from the Des Moines River just south of Saylorville Dam
|
The documentation form by Dennis Thompson is the only one submitted and forms the basis of this record. Another observer was Cecile Thompson. | Elimination of similar species: Evening Grosbeak by the bill & color pattern. White in the wing too extensive for young Orchard Oriole. Also seemed bigger than an Orchard Oriole. Bright yellow underparts & streaked back rule out several other orioles. Immature Scott's are described as 'gray-green' below. | The original documentation form event occurred around mid-afternoon.
|
Iowa Ornithologists' Union | MS 166
|
14
|
11
|
|
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 for Bullock's Oriole at Maysville, 1987
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1987-11-21
|
2000-11-20
|
Rare birds documentation form
|
Records Committee review for a Bullock's Oriole at Maysville in Scott County, IA on November 21, 1987. Includes a record review document with votes and a documentation form submitted to the committee.
|
Petersen, Peter C.
|
Bullock's Oriole
|
Maysville
|
1/2 mi. W. Maysville, Scott Co., IA
|
small apple orchard
|
The documentation form by Peter Petersen is the only one submitted and forms the basis of this record. Other observers include Mary Lou Petersen, Bill Erps, and Everett Howard. | Elimination of similar species: Baltimore race has some orange or yellow on all underparts, darker back. | The original documentation form event lasted from 15:40:00/15:50:00.
|
Iowa Ornithologists' Union | MS 166
|
14
|
11
|
|
Records Committee review for rare bird sighting for Burrowing Owl 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 a Burrowing Owl at Rathbun Reservoir in Appanoose County, IA on December 20, 1986. Includes a record review document with votes, a summary of the review, and three documentation forms submitted to the committee.
|
Strough, Randy D.
|
Burrowing Owl
|
Rathbun Lake
|
Appanoose County, Lake Rathbun, 1.5 miles North on paved road to Southfork Marina off J5T
|
Open; harvested bean field west side of road, harvested corn field east side of road. The ditches were mowed clean of weeds and lacked trees or shrubs
|
The documentation form by Randal D. Strough forms the basis of this record. Other documentation forms by Ray Cummins and Steve Dinsmore were submitted. Another observer includes Tom Johnson. | Elimination of similar species: Screech Owl: a screech owl has ear tufts (except young screech owls may lack conspicuous ear tufts). The belly has vertical barring, and lacks definate [sic] spots on head and back. Legs are not conspicuously long. Saw-whet Owl: has vertical streaked belly, and lacks conspicuously long legs. Habitat: conifer groves, there where [sic] none in the immediate area. | The original documentation form event lasted from 16:45:00/17:05:00.
|
Iowa Ornithologists' Union | MS 166
|
12
|
17
|
|
Records Committee review for rare bird sighting of Burrowing Owl east of Larchwood, 1998
|
Administrative records Clippings (information artifacts) Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1998-08-30
|
2000-11-24
|
Rare birds documentation form
|
Records Committee review for a Burrowing Owl east of Larchwood in Lyon County, IA on August 30, 1998. Includes a record review document with votes, an article in Iowa Bird Life, and a photograph submitted to the committee.
|
Harr, Douglas C.
|
Burrowing Owl
|
Larchwood
|
[...] probable nest site three miles east of Larchwood.
|
|
The article by Doug Harr forms the basis of this record. Another observer is Dolly Zangger. | Elimination of similar species: [...] I saw no evidence of other owls on this or subsequent visits.
|
Iowa Ornithologists' Union | MS 166
|
12
|
17
|
|
Records Committee review for rare bird sighting for Burrowing Owl south of Archer, 1982
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1982-04-13
|
1993-09-01
|
Rare birds documentation form
|
Records Committee review for a Burrowing Owl south of Archer in O'Brien County, IA on April 13, 1982. Includes a record review document with votes, a summary of review, and a documentation form submitted to the committee.
|
Harms, Ronald
|
Burrowing Owl
|
Archer
|
O'Brien County, Ia. 1.75 South of Archer
|
Flat land
|
The documentation form by Ronald Harms is the only one submitted and forms the basis of this record. | Elimination of similar species: it's just a burrowing owl | The original documentation form event lasted from approximately 09:00:00/09:15:00.
|
Iowa Ornithologists' Union | MS 166
|
12
|
17
|
|
Records Committee review for rare bird sighting of California Gull at Babcock Access at Coralville Reservoir, 1990
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1990-10-27
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review for a California Gull at Babcock Access at Coralville Reservoir in Johnson County, IA on October 27, 1990. Includes a record review document with votes, two articles in Iowa Bird Life, and five documentation forms submitted to the committee.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
California Gull
|
Babcock Access
|
Babcock Access, Coralville Reservoir, Johnson County, Iowa
|
shallow, open area of reservoir
|
The documentation form by Thomas H. Kent is the earliest and the one that forms the basis of this record. Other documentation forms by Jim Fuller, Randy Pinkston, Carol Thompson, and Carl J. Bendorf were submitted later. Other observers include Timothy Dwyer, John Cordell, James Huntington, Cal Knight, Bernie Knight, and Rick Hollis. | Elimination of similar species: First-year Ring-billed Gulls were all in first winter plumage with gray mantle and were much lighter overall. The only other species considered is juvenile Herring Gull. The size is small for Herring Gull. The elongated appearance and short legs fit California Gull. Most young Herrings that I see in early fall have mostly dark bills that are larger than that of this bird. The double inner wing bar and lighter tertial tips fit California Gull. The overall relatively uniform and relatively light brown color without windows in the inner primaries also made this bird look different from Herring Gull. | The original documentation form event lasted from 15:15:00/16:55:00 on October 27, 1990 and from 19:10:00/22:30:00 and 15:00:00/16:00:00 on October 28, 1990.
|
Iowa Ornithologists' Union | MS 166
|
11
|
1
|
|
Records Committee review for rare bird sighting of California Gull at Carter Lake, 1993
|
Administrative records Clippings (information artifacts) Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1993-11-21
|
1995-07-08
|
Rare birds documentation form
|
Records Committee review for a California Gull at Carter Lake in Pottawattamie County, IA on November 21, 1993. Includes a record review document with votes, a photograph, an article in Iowa Bird Life, and three documentation forms submitted to the committee.
|
Bray, Tanya
|
California Gull
|
Carter Lake
|
Carter Lake, Pottawattamie County
|
|
The documentation form by Tanya Bray forms the basis of this record. Other documentation forms by Loren and Babs Padelford, and Ross Silcock were submitted. Other observers include Jerry Toll and B.J. Rose. | Elimination of similar species: Both Ring-billed and Herring Gulls are eliminated by bill coloration, size, slightly darker mantle, and eye color. Western, Lesser-black backed would be darker mantled, different bill coloration. | The original documentation form event lasted from 10:30:00/10:58:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
1
|
|
Records Committee review for rare bird sighting of California Gull at Cherry Glen Recreation Area at Saylorville Reservoir, 1986
|
Administrative records Correspondence Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1986-12-07
|
1996-01-25
|
Rare birds documentation form
|
Records Committee review for a California Gull at Cherry Glen Recreation Area at Saylorville Reservoir in Polk County, IA on December 7, 1986. Includes a record review document with votes, correspondence about the bird sighting and a request for re-evaluation of sighting, summary of the review, and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
California Gull
|
Cherry Glen Recreation Area
|
Saylorville Reservoir, Polk Co. (Cherry Glen Recreation Area)
|
sitting on ice with other gulls
|
The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: Herring Gull eliminated by larger size, lighter mantle color, lack of black and red spots on bill, and wrong leg color (pink, although a very few Herring Gull show yellowish legs). Ring-billed Gull eliminated by smaller size, lighter mantle color, lack of a black ring on bill, and by yellower leg color. | The original documentation form event lasted from 13:13:00/14:08:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
1
|
|
Records Committee review for rare bird sighting of California Gull at Cherry Glen Recreation Area at Saylorville Reservoir, 1997
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1997-12-09
|
2000-11-24
|
Rare birds documentation form
|
Records Committee review for a California Gull at Cherry Glen Recreation Area at Saylorville Reservoir in Polk County, IA on December 9, 1997. Includes a record review document with votes and a documentation form submitted to the committee.
|
Overton, Michael D.
|
California Gull
|
Cherry Glen Recreation Area
|
Polk co., Saylorville Reservoir, Cherry Glen Recreation Area
|
On ice along lakeshore of large manmade lake in mixed hardwood forest agricultural cropland.
|
The documentation form by Michael D. Overton is the only one submitted and forms the basis of this record. Other observers include Eugene Armstrong and Eloise Armstrong. | Elimination of similar species: Ring-billed Gull, Herring Gull: Immatures of both species were present so direct comparisons were possible. Bill color, shape, and size reletive [sic] to head. Tail and rump color. Wing color and pattern especially mantle, greater coverts, and secondaries. | The original documentation form event lasted from 10:20:00/10:55:00.
|
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
|
|
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 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 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
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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.
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Dinsmore, Stephen J.
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California Gull
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Oak Grove Recreation Area
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[...] Oak Grove Beach Recreation Area at Saylorville Reservoir, Polk County.
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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.
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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 California Gull at Runnells Wildlife Area, 1995
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Administrative records Clippings (information artifacts) Field notes Photographs
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Bird watching Ornithology Ornithology--Societies, etc
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1995-09-03
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2000-11-20
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Rare birds documentation form
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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.
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Dinsmore, Stephen J.
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California Gull
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Red Rock Wildlife Area
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1 mi e. of Swan, Marion Co. (Runnells W.A.)
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pool of shallow water
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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.
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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 California Gull at Saylorville Dam, 1993
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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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1993-12-06
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1995-07-08
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Rare birds documentation form
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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.
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Pinkston, Randall, 1956-
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California Gull
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Saylorville Dam
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Saylorville Reservoir dam, Polk County, Iowa
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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.
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Iowa Ornithologists' Union | MS 166
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11
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1
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