Records Committee review for rare bird sighting of Black-headed Gull at Spirit Lake and Kettleson Hogsback Wildlife Management Area, 1994
|
Administrative records Clippings (information artifacts) Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1994-08-02
|
1998-06-09
|
Rare birds documentation form
|
Records Committee review for a Black-headed Gull at Spirit Lake and Kettleson Hogsback Wildlife Management Area in Dickinson County, IA on August 2, 1994. Includes a record review document with votes, an article in Iowa Bird Life, a photograph, and thirteen documentation forms submitted to the committee.
|
Dinsmore, Stephen J.
|
Black-headed Gull
|
Kettleson Hogsback Wildlife Management Area Spirit Lake
|
n. end of Spirit L., Dickinson Co., IA
|
large lake
|
The documentation form by Stephen J. Dinsmore for the 11:25 AM sighting forms the basis of this record. A second form by Stephen J. Dinsmore for the 12:12 PM and 5:40PM sighting was submitted as well. Other documentation forms by Lee A. Schoenewe, Pete Ernzen, Jim Fuller, Thomas H. Kent, Peter C. Petersen, Ed Thelen, Babs Padelford, Loren Padelford, Pam Allen, Reid Allen, Beth Proescholdt, and Mark Proescholdt (two separate forms) were submitted later. Other observers include LaVonne Foote, Nancy Schoenewe, Beth Brown, Tim Schantz, Brian Blevins, Corey Blevins, Bob Livermore, Roland Barth, Kim Eckert, Russ Widner, Phil McFadden, Bill Huser, Eugene Armstrong, and Eloise Armstrong. | Elimination of similar species: The combination of red bill and legs, brown hood, size, very pale gray mantle and upperwings, and black undersides to the inner primaries eliminates several similar species, including Franklin's, Laughing, Little, Bonaparte's, and Ross' gulls. | The original documentation form event lasted from 11:25:00/11:42:00.
|
Iowa Ornithologists' Union | MS 166
|
10
|
21
|
Records Committee review for rare bird sighting of Black-legged Kittiwake at Lake Manawa, 1995
|
Administrative records Clippings (information artifacts) Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1995-09-24
|
2000-11-20
|
Rare birds documentation form
|
Records Committee review of a Black-legged Kittiwake at Lake Manawa in Pottawattamie County, IA on September 24, 1995. Includes a record review document with votes, two photographs, an article in Audubon Field Notes, an article in Iowa Bird Life, and three documentation forms submitted to the committee.
|
Padelford, Babs Padelford, Loren
|
Black-legged Kittiwake
|
Lake Manawa
|
Lake Manawa, Pottawattamie County, Iowa
|
|
The documentation form by Loren Padelford and Babs Padelford 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 James Kovanda, Sandra Kovanda, Tim Schantz, Pam Allen, Reid Allen, Chuck Fuller, Eugene Armstrong, and Eloise Armstrong. | The original documentation form event lasted from 10:30:00/10:45:00 and 18:15:00/18:20:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
10
|
Records Committee review for rare bird sighting of Black-legged Kittiwake at Lock and Dam 11 in Dubuque, 1981
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1981-12-06
|
1993-08-16
|
Rare birds documentation form
|
Records Committee review for a Black-legged Kittiwake in Lock and Dam 11 in Dubuque in Dubuque County, IA on December 6, 1981. Includes a record review document with votes, an article in Iowa Bird Life, a summary of the review, and three documentation forms submitted to the committee.
|
Moore, Francis L.
|
Black-legged Kittiwake
|
Lock and Dam 11
|
Lock and Dam No. 11; N.E. part of Dubuque along Mississippi River
|
Mostly flying below Lock and Dam No. 11 on the Mississippi R.
|
The documentation form by Francis L. Moore forms the basis of this record. Other documentation forms by Robert K. Myers and Thomas H. Kent were submitted. Another observer was Russell Hays. | Elimination of similar species: Bonaparte's does not have a dark stripe across the nape, its tail is not forked and it has a black trailing edge to the wing, not white as as this bird did. Bonaparte's would have shown more white in the primaries also. Coloration was not the same as a Red-legged Kittiwake or Sabine's Gull. | The original documentation form event lasted from 13:05:00/13:15:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
10
|
Records Committee review for rare bird sighting of Black-necked Stilt at Amana Lake, 1993
|
Administrative records Clippings (information artifacts) Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1993-05-20
|
1995-07-08
|
Rare birds documentation form
|
Records Committee review of two Black-necked Stilts at Amana Lake in Iowa County, IA on May 20, 1993. Includes a record review document with votes, a photo, an article in Iowa Bird Life, and three documentation forms submitted to the committee.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Black-necked Stilt
|
Lily Pond
|
Amana Lake, Iowa County, Iowa
|
artificial, shallow lake with low water and extensive mud flats
|
The documentation form by Thomas H. Kent is the earliest and the one that forms the basis of this record. Other documentation forms by Thomas Staudt and Randall Pinkston were submitted later. | Elimination of similar species: none. | The original documentation form event lasted from 12:15:00/12:30:00.
|
Iowa Ornithologists' Union | MS 166
|
9
|
20
|
Records Committee review for rare bird sighting of Black-necked Stilt at Riverton Area, 1992
|
Administrative records Clippings (information artifacts) Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1992-05-12
|
1996-01-24
|
Rare birds documentation form
|
Records Committee review of a Black-necked Stilt at Riverton Area in Fremont County, IA on May 12, 1992. Includes a record review document with votes, an article in Iowa Bird Life, a photo, and three documentation forms submitted to the committee.
|
Johnson, Ann
|
Black-necked Stilt
|
Riverton Wildlife Management Area
|
Riverton Wildlife Area, Fremont Co., IOWA
|
Broad expanse of mud flats
|
The documentation form by Ann Johnson is the earliest and the one that forms the basis of this record. Other documentation forms by Pam Allen and Thomas H. Kent were submitted later. Other observers include Reid Allen, W. Ross Silcock, and Dick Tetrault. | Elimination of similar species: Identification of a Black-necked Stilt is straight forward. The only other bird in North America which is even remotely similar is the American Avocet. It can be eliminated by the black feathering on the head and neck, straight bill, and pink legs. | The original documentation form event lasted from 14:55:00/16:55:00.
|
Iowa Ornithologists' Union | MS 166
|
9
|
20
|
Records Committee review for rare bird sighting of Black-necked Stilt at Snyders Bend Lake, 1991
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1991-04-06
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review of a Black-necked Stilt at Snyders Bend Lake in Woodbury County, IA on April 6, 1991. Includes a record review document with votes, an article in Iowa Bird Life, and five documentation forms submitted to the committee.
|
Huser, Bill F.
|
Black-necked Stilt
|
Snyder Bend Park
|
Snyder's Bend Lake, Woodbury County, IA
|
Mudflats with mats of vegetation near old cattails
|
The documentation form by Bill Huser is the earliest and the one that forms the basis of this record. Other documentation forms by Bill Huser (additional sightings), Tanya Bray and Ross Silcock, Jim Fuller, and Babs and Loren Padelford were submitted later. Other observers include John Van Dyke, Eloise Armstrong, Eugene Armstrong, Bob Livermore, Bob Moritz, and Jerry Probst. | Elimination of similar species: Phalaropes - smaller, not as distinct black + white pattern or as long legs. Am. Avocet: upturned bill, white or tawny head + necks - not black over white | The original documentation form event occurred from 10:45:00/11:10:00, from 11:25:00/11:55:00, and around 13:30:00.
|
Iowa Ornithologists' Union | MS 166
|
9
|
20
|
Records Committee review for rare bird sighting of Black-necked Stilt at Union Slough National Wildlife Refuge, 1984
|
Administrative records Clippings (information artifacts) Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1984-06-02
|
1993-09-01
|
Rare birds documentation form
|
Records Committee review of two Black-necked Stilts at Union Slough National Wildlife Refuge in Kossuth County, IA on June 2, 1984. Includes a record review document with votes, a summary of the review, a photocopy of a photo, an article of Iowa Bird Life, and two documentation forms submitted to the committee.
|
Myers, Robert K.
|
Black-necked Stilt
|
Union Slough National Wildlife Refuge
|
Union Slough National Wildlife Refuge - Kossuth County, Iowa
|
General: Large cattail marsh. Specific: Shallow muddy pool on north edge of Refuge.
|
The documentation form by Robert Myers forms the basis of this record. Another documentation form by Francis L. Moore was submitted. Other observers include Russell Hays and several unidentified observers. | Elimination of similar species: Nothing really is similar. American Avocet has upturned bill and shows much white in wings. | The original documentation form event lasted from 07:58:00/08:00:00 and 08:30:00/08:45:00.
|
Iowa Ornithologists' Union | MS 166
|
9
|
20
|
Records Committee review for rare bird sighting of Black-necked Stilt south of Ainsworth, 1996
|
Administrative records Clippings (information artifacts) Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-05-18
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review of three Black-necked Stilts south of Ainsworth in Washington County, IA on May 18, 1996. Includes a record review document with votes, two photos, an article in Iowa Bird Life, an article in Field Notes, and five documentation forms submitted to the committee.
|
Proescholdt, Mark
|
Black-necked Stilt
|
Ainsworth
|
Washington County - south of #92 about 1/2 mile on #218
|
Wet areas in field after flooded creek spilled out into fields
|
The documentation form by Mark Proescholdt is the earliest and the one that forms the basis of this record. Other documentation forms by Jim Fuller, Thomas H. Kent, Jim Dinsmore, and Chris Edwards were submitted later. Other observers include Cal Knight, Bernie Knight, Chuck Fuller, Eugene Armstrong, Eloise Armstrong, Richard Tetrault, Peter Petersen, Francis Moore, Ann Johnson, Hank Zalatel, Beth Proescholdt, and Russ Widner. | Elimination of similar species: There are no similar species that come to mind. | The original documentation form event lasted from 14:00:00/14:10:00 on May 18, 1996 and 15:00:00/15:10:00 on May 19th, 1996.
|
Iowa Ornithologists' Union | MS 166
|
9
|
20
|
Records Committee review for rare bird sighting of Brant at De Soto National Wildlife Refuge, 1980
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1980-11-02
|
1993-08-16
|
Rare birds documentation form
|
Records Committee review of a Brant at De Soto National Wildlife Refuge in Harrison County, IA on November 2, 1980. Includes a record review document with votes, an Iowa Bird Life article, and five documentation forms submitted to the committee.
|
Dinsmore, James J.
|
Brant
|
DeSoto National Wildlife Refuge
|
DeSoto Natl. Wildlife Refuge, Harrison Co (shot in NE corner on Iowa side of refuge)
|
Shot in field on refuge
|
The documentation form by James Dinsmore is the earliest and the one that forms the basis of this record. Other documentation forms by Randall G. Sease and Maury J. Muhm were submitted later. Other observers include John Kounas. | Elimination of similar species: Canada Goose-size of hutchin's race but no white cheek patch, otherwise bill size, neck proportions, and overall size matched Hutchins. Brant-not adult because lacked white necklace, not dark race because belly was light. | The original documentation form event lasted from 09:30:00/10:00:00.
|
Iowa Ornithologists' Union | MS 166
|
8
|
9
|
Records Committee review for rare bird sighting of Brant at De Soto National Wildlife Refuge, 1988
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1988-12-18
|
1993-08-04
|
Rare birds documentation form
|
Records Committee review of a Brant at De Soto National Wildlife Refuge in Harrison County, IA on December 18, 1988. Includes a record review document with votes, an article in Iowa Bird Life, a copy of a photo, and eight documentation forms submitted to the committee.
|
Rosenbaum, Mindy
|
Brant
|
DeSoto National Wildlife Refuge
|
In front of De Soto Visitor Center
|
frozen lake
|
The documentation form by Mindy Rosenbaum is the earliest and the one that forms the basis of this record. Other documentation forms by Steve Dinsmore, Robert K. Myers, Jim Fuller, Thomas H. Kent, Tanya Bray, Robert Cecil, and Ross Silcock were submitted later. Other observers include Francis Moore, Babs Padelford, Loren Padelford, John Hoogerheide, Eloise Armstrong, Eugene "Gene" Armstrong, and John Cecil. | The original documentation form event lasted from 14:00:00/14:45:00.
|
Iowa Ornithologists' Union | MS 166
|
8
|
9
|
Records Committee review for rare bird sighting of Brant at Riverton Wildlife Management Area, IA, 1983
|
Administrative records Clippings (information artifacts) Correspondence Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1983-11-18
|
1993-09-01
|
Rare birds documentation form
|
Records Committee review of a Brant north of Riverton Wildlife Management Area in Fremont County, IA on November 18, 1983. Includes a record review document with votes, an article in Wildlife Notes, internal correspondence, and a documentation form submitted to the committee.
|
Priebe, Don
|
Brant
|
Riverton Wildlife Management Area
|
6 mi. N of Riverton on No. 2
|
Corn field
|
The documentation form by Don Priebe is the earliest and the one that forms the basis of this record. Other observers include Steve Benson, Carl Priebe, and Jim Priebe.
|
Iowa Ornithologists' Union | MS 166
|
8
|
9
|
Records Committee review for rare bird sighting of Brant at Whitebreast Park, 1987
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1987-10-04
|
1993-09-07
|
Rare birds documentation form
|
Records Committee review of a Brant at near Whitebreast Park in Marion County, IA on October 4, 1987. Includes a record review document with votes, an article in Iowa Bird Life and a documentation form submitted to the committee.
|
Dinsmore, James J.
|
Brant
|
Whitebreast Recreation Area
|
released at Polk City Wildlife Area; bird had been caught on south shore of Red Rock Reservoir, Marion County
|
freshwater lake
|
The documentation form by Jim Dinsmore is the earliest and the one that forms the basis of this record. Other observers include Jennifer Lancaster, Tom Miller, Steve Dinsmore, and Roger Sedlacek. | Elimination of similar species: Canada Goose-small size eliminates all but the smallest races; the bird lacked a cheek patch. | The original documentation form event lasted from 11:00:00/08:00:00 next day when they released the bird.
|
Iowa Ornithologists' Union | MS 166
|
8
|
9
|
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 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 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 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 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 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
|
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 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 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 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 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 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
|