Records Committee review for rare bird sighting of Sabine's Gull at Whitebreast Point in Red Rock Reservoir, 1996
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-10-24
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Sabine's Gull at Whitebreast Point in Red Rock Reservoir in Marion County, IA on October 24, 1996. Includes a record review document with votes and a documentation form submitted to the committee.
|
Fuller, James L
|
Sabine's Gull
|
Whitebreast Recreation Area
|
Red Rock Reservoir (Marion County)
|
|
The documentation form by Jim Fuller is the only one submitted and forms the basis of this record. Other observers include Rita Goranson, Chuck Fuller, and John Rutenbeck. | Elimination of similar species: First winter Black-legged Kittiwake, Little Gull, and Bonaparte's Gull have a somewhat three-toned upperwing, even though the pattern is not as clear-cut, but all have a dark tail band, and none has a full dark hood. | The original documentation form event lasted from 11:05:00/11:20:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
9
|
Records Committee review for rare bird sighting for Le Conte's Sparrow at Walnut Creek National Wildlife Refuge, 1996
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-02-25
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Le Conte's Sparrow at Walnut Creek National Wildlife Refuge in Jasper County, IA on February 25, 1996. Includes a record review document with votes and field notes submitted to the committee.
|
Friedrick, Denise
|
Le Conte's Sparrow
|
Walnut Creek National Wildlife Refuge
|
[...] along Walnut Creek
|
[...] "Grass-riparian" area
|
The field notes by Denise Friedrick were the only ones submitted and form the basis of this record. | The original documentation form event lasted from 09:52:00/11:30:00.
|
Iowa Ornithologists' Union | MS 166
|
13
|
37
|
Records Committee review for rare bird sighting for Lark Sparrow north of Newell, 1996
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-12-20
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Lark Sparrow north of Newell in Buena Vista County, IA on December 20, 1996. Includes a record review document with votes, field notes, and a documentation form submitted to the committee.
|
Thelen, Ed
|
Lark Sparrow
|
Newell
|
1 mile N. of Newell along black top road
|
Roadside - open fields - only cover in ditch
|
The documentation form by Ed Thelen is the only one submitted and forms the basis of this record. Other observers include Linda Thelen and the Thelen children. | Elimination of similar species: unmistakable - clear breast, dark spot - white tipped tail - strong facial pattern | The original documentation form event lasted from approximately 15:00:00/15:10:00.
|
Iowa Ornithologists' Union | MS 166
|
13
|
32
|
Records Committee review for rare bird sighting for Western Tanager at Spirit Lake, 1996
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-05-23
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Western Tanager at Spirit Lake in Dickinson County, IA on May 23, 1996. Includes a record review document with votes, an article in Iowa Bird Life, and a documentation form submitted to the committee.
|
Thelen, Ed
|
Western Tanager
|
Spirit Lake
|
My backyard birdbath - East edge of Spirit Lake
|
Suburban - edge of farmland
|
The documentation form by Ed Thelen is the only one submitted and forms the basis of this record. | Elimination of similar species: Female oriole - size, shape and color of beak, length of tail and color of chin. Imm. Scarlet tanager - According to Master Guide to birding Vol 3 p. 196, juvenal [sic] Scarlet tanagers resemble the female but are more variable and have bright yellow wing bars. Also according to National Geographic Bird Guide it states that the immature scarlet tanager has faint wing bars. I don't think it was an immature scarlet tanager because this time of year the bird is not in juvenal [sic] plumage and the bird I saw had prominent and strong wing bars. Also the bird I saw had a very light colored rump and also its nape was a shade lighter than its back giving the birds upper part the light-dark light sequence for its nape-back-rump. This is a characteristic of the Western Tanager. This is what Bent (1958) p 472 has to say about the plumages of the 1st year male western tanager. "There is considerable variation among individuals, these one-year old males are as a whole somewhat less brilliant than the adults. The black of the upper part is duller and more or less intermixed with greenish. The red on the head paler, less intense and more restricted in area; and the yellows decidedly duller and less brilliant." | The original documentation form event lasted from 19:15:00/19:18:00.
|
Iowa Ornithologists' Union | MS 166
|
13
|
29
|
Records Committee review for rare bird sighting for Palm Warbler southeast of Boone, 1996
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-12-09
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Palm Warbler southeast of Boone in Boone County, IA on December 9, 1996. Includes a record review document with votes and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Palm Warbler
|
Boone
|
se of Boone, Boone Co.
|
rural yard
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. Another observer was Karl Jungbluth. | Elimination of similar species: The combination of tail-bobbing, yellow vent, white eyebrow, unmarked wings, and streaked underparts eliminates all other warblers, especially Yellow-rumped, Prairie, Pine, and Cape May warblers. | The original documentation form event lasted from 08:10:00/08:14:00.
|
Iowa Ornithologists' Union | MS 166
|
13
|
23
|
Records Committee review for rare bird sighting for Mountain Bluebird at Hidden Bridge Wildlife Area, 1996
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-03-12
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Mountain Bluebird at Hidden Bridge Wildlife Area in Lyon County, IA on March 12, 1996. Includes a record review document with votes and a documentation form submitted to the committee.
|
Thelen, Ed
|
Mountain Bluebird
|
Hidden Bridge Wildlife Area
|
Hidden Bridge Wildlife Area - Lyon County
|
Bluffs overlooking River Valley - Scattered trees + shrubs - fenceline
|
The documentation form by Ed Thelen is the only one submitted and forms the basis of this record. | Elimination of similar species: - Eastern + Western bluebird were eliminated by the blue on the breast - shape, color, size and habits eliminated indigo bunting. | The original documentation form event lasted from 17:00:00/17:15:00.
|
Iowa Ornithologists' Union | MS 166
|
13
|
5
|
Records Committee review for rare bird sighting for Fish Crow southwest of Oakville, 1996
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-05-11
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Fish Crow southwest of Oakville in Louisa County, IA on May 11, 1996. Includes a record review document with votes and a documentation form submitted to the committee.
|
Petersen, Peter C.
|
Fish Crow
|
Oakville
|
1/2 mi SW Oakville, Louisa Co, IA
|
Bottomland Forest along Iowa River
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Another observer was Brian Blevins. | Elimination of similar species: Am. Crow - larger, different call, flight stronger. Due to late season no Am. Crows have fledged. | The original documentation form event lasted from 10:30:00/10:31:00.
|
Iowa Ornithologists' Union | MS 166
|
12
|
46
|
Records Committee review for rare bird sighting for Fish Crow at Cone Marsh, 1996
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-03-28
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Fish Crow in Cone Marsh in Louisa County, IA on March 28, 1996. Includes a record review document with votes and a documentation form submitted to the committee.
|
Fuller, James L
|
Fish Crow
|
Cone Marsh Wildlife Management Area
|
In the woods along the edge of Cone Marsh (Louisa County.
|
|
The documentation form by Jim Fuller is the only one submitted and forms the basis of this record. Other observers include Jane Fuller, Chuck Fuller, John Rutenbeck, Rick Hollis, and Jim Durbin. | Elimination of similar species: The call this bird was making was not that of a Common Crow, and the bird making the call (as well as the other bird) appeared to have a smaller bill and was more glossy than I would expect a Common Crow to be. | The original documentation form event lasted from 09:48:00/09:50:00.
|
Iowa Ornithologists' Union | MS 166
|
12
|
46
|
Records Committee review for rare bird sighting for Clark's Nutcracker north of Pony Creek Park, 1996.
|
Administrative records Clippings (information artifacts) Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-12-20
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Clark's Nutcracker north of Pony Creek Park in Mills County, IA on December 20, 1996. Includes a record review document with votes, three photographs, an article in Field Notes, and four documentation forms submitted to the committee.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Clark's Nutcracker
|
Pony Creek Park
|
residential area north of Pony Creek Park, Mills Co., Iowa
|
about a mile into the mixed wooded and open areas of the Loess Hills.
|
The documentation form by Thomas H. Kent forms the basis of this record. Other documentation forms by Jim Fuller, Stephen Dinsmore, and Peter C. Petersen were submitted. Other observers include Mary Lou Petersen, Brian Blevins, Roy Davis, Bobbie Davis, and many unidentified other observers. | Elimination of similar species: none. | The original documentation form event lasted from 09:07:00/09:30:00.
|
Iowa Ornithologists' Union | MS 166
|
12
|
44
|
Records Committee review for rare bird sighting for Pinyon Jay at northeast Boone County, 1996
|
Administrative records Clippings (information artifacts) Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-11-30
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Pinyon Jay at northeast Boone County, IA on November 30, 1996. Includes a record review document with votes, two photographs, an article in Field Notes, an article in Iowa Bird Life, an article in the Des Moines Register, and six documentation forms submitted to the committee.
|
Dinsmore, James J.
|
Pinyon Jay
|
Boone
|
ne Boone County
|
at bird feeder, in farm yard
|
The documentation form by Jim Dinsmore forms the basis of this record. Other documentation forms by Mark Proescholdt, Thomas H. Kent, Stephen Dinsmore, Chris Edwards, and Jim Fuller were submitted. Other observers include Lloyd Crim, Gaylan Crim, Ann Johnson, Peter Peterson, Jim Sinclair, Dennis Henrickson, Ken Lowder, John Daniel, Chris Caster, Dennis Thompson, Cecille Thompson, Beth Proescholdt, Dick Tetrault, Pam Allen, Reid Allen, Eugene Armstrong, Eloise Armstrong, and many unidentified observers. | Elimination of similar species: This combination of body shape and color separates it form other jays. | The original documentation form event lasted from 08:45:00/10:15:00.
|
Iowa Ornithologists' Union | MS 166
|
12
|
43
|
Records Committee review for rare bird sighting for Rufous Hummingbird at McClelland Beach at Spirit Lake, 1996
|
Administrative records Clippings (information artifacts) Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-08-21
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Rufous Hummingbird at McClelland Beach at Spirit Lake in Dickinson County, IA on August 21, 1996. Includes a record review document with votes, an article in Iowa Bird Life, a photograph, and four documentations submitted to the committee.
|
Winebrinner, Ruth L. Winebrinner, Edward Calvin
|
Rufous Hummingbird
|
McClelland Beach
|
We are on the north shore of Spirit Lake, Ia.
|
|
The documentation by Ed and Ruth Winebrinner forms the basis of this record. Other documentations by Ed Thelen, Lee A. Schoenewe, and Jim Fuller were submitted. Another observer is LaVonne Foote. | Elimination of similar species: [...] Brown? Imature [sic] ruby-throats aren't brown, are they? About then a hummer flew by. It was brown!! | The original documentation form event occurred in the morning and afternoon of August 21, 1996 until 10:00:00 on August 23, 1996.
|
Iowa Ornithologists' Union | MS 166
|
12
|
24
|
Records Committee review for rare bird sighting for Great Gray Owl at Colfax Township in Grundy County, 1996
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-02-17
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Great Gray Owl at Colfax Township in Grundy County, IA on February 17, 1996. Includes two record review documents with votes, an article from the Grundy Register, and a documentation form submitted to the committee.
|
Dinsmore, James J.
|
Great Gray Owl
|
Colfax Township
|
section 17, Colfax Township, Grundy Co. (ca 3 miles east of Wellsburg)
|
roadside, open farmland
|
The documentation form by James Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: Barred Owl-size, relative length of tail, gray rather than brownish gray as predominant color.
|
Iowa Ornithologists' Union | MS 166
|
12
|
18
|
Records Committee review for rare bird sighting for Great Gray Owl at Big Marsh, 1996
|
Administrative records Clippings (information artifacts) Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-02-11
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Great Gray Owl at Big Marsh in Butler County, IA on February 11, 1996. Includes a record review document with votes, two photographs, an article in Field Notes, and seven documentation forms submitted to the committee.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Great Gray Owl
|
Big Marsh Wildlife Area
|
Big Marsh, Butler Co., Iowa
|
At north edge of large man-made marshy area near the Cedar River.
|
The documentation form by Thomas H. Kent forms the basis of this record. Other documentation forms by Jim Fuller, Stephen J. Dinsmore, Jim Dinsmore, Mary Lou and Peter Petersen, Chris Edwards, and Mark Proescholdt were submitted. Other observers include Francis Moore, Beth Proescholdt, Carl Kurtz, Linda Kurtz, Carolyn Fischer, Pat Hansen, Alan Martin, Rita Pedelty, Rita Goranson, Jan Walter, Tim Gedler, Dennis Henrickson, Bruce DeLong, Eugene Armstrong, Eloise Armstrong, Tom Stone, James Scheib, and many unidentified other observers. | Elimination of similar species: Only Barred Owl is remotely similar. The most impressive marks were the yellow eyes, bow tie mark, and large gray facial disks. | The original documentation form event lasted from 16:59:00/17:30:00.
|
Iowa Ornithologists' Union | MS 166
|
12
|
18
|
Records Committee review for rare bird sighting of Little Gull at Black Hawk Lake, 1996
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-04-21
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Little Gull at Black Hawk Lake in Sac County, IA on April 21, 1996. Includes a record review document with votes, an article in Iowa Bird Life, and two documentations submitted to the committee.
|
Ernzen, Peter
|
Little Gull
|
Black Hawk Lake
|
[...] south east corner of Blackhawk Lake in Sac Co.
|
|
The documentation by Peter Ernzen forms the basis of this record. A documentation form by Jim Fuller was submitted. | Elimination of similar species: [...] The other five hooded gulls were eliminated for a variety of reasons. Franklin's and Laughing Gull would be larger, darker mantled and have a prominent eye ring. Sabine's Gull would've had a bicolored bill, forked tail and different - white triangular - pattern to its wings. The larger Common Black-headed Gull looks like a larger version of a Bonaparte's Gull with a brownish hood and a red bill. The associated Bonaparte's Gulls were darker mantled and larger. The wings were more angular in appearance with a white leading edge and black wing tips. I have observed all but the Laughing Gull - though the Sabine's Gulls were immature, the distinctive wing pattern is present in both adults and immatures - and feel confident in calling this an adult Little Gull. | The original documentation form event lasted from 10:15:00/10:30:00 and 11:00:00/11:08:00.
|
Iowa Ornithologists' Union | MS 166
|
10
|
20
|
Records Committee review for rare bird sighting of Sabine's Gull at Black Hawk Lake, 1996
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-10-06
|
2000-11-22
|
Rare birds documentation form
|
Records Committee for a Sabine's Gull at Black Hawk Lake in Sac County, IA on October 6, 1996. Includes a record review document with votes and a field report submitted to the committee.
|
Ernzen, Peter
|
Sabine's Gull
|
Black Hawk Lake
|
[...] Northeast corner of Black Hawk Lake in Sac Co.
|
|
The documentation field report by Peter Ernzen is the only one submitted and forms the basis of this record. | The original documentation form event lasted around 10 minutes in the afternoon.
|
Iowa Ornithologists' Union | MS 166
|
11
|
9
|
Records Committee review for rare bird sighting of Sabine's Gull at Orleans Beach at Spirit Lake, 1996
|
Administrative records Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-10-02
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Sabine's Gull at Orleans Beach at Spirit Lake in Dickinson County, IA on October 2, 1996. Includes a record review document with votes, a photograph, a photocopy of a photograph, and a documentation form submitted to the committee.
|
Thelen, Ed
|
Sabine's Gull
|
Orleans Beach
|
South Shore of Big Spirit - Orleans Beach - Dickinson County
|
Natural Lake - sandy shore
|
The documentation form by Ed Thelen is the only one submitted and forms the basis of this record. | Elimination of similar species: Black-legged Kittiwake has bar behind head and also black diagonal bar on inner part of wing | The original documentation form event lasted from 11:00:00/ sunset.
|
Iowa Ornithologists' Union | MS 166
|
11
|
9
|
Records Committee review for rare bird sighting of Lesser Black-backed Gull at Red Rock Dam, 1996
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-11-27
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Lesser Black-backed Gull at Red Rock Dam in Marion County, IA on November 27, 1996. Includes a record review document with votes and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Lesser Black-backed Gull
|
Red Rock Dam
|
below Red Rock dam, Marion Co., IA
|
dam tailwaters
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: The most similar-appearing species is first-basic Herring Gull. The combination of slightly smaller size, longer wings, whiter rump, more speckled mantle, contrast between the darker mantle and lighter head, and darker upperwings lacking a pale "window" eliminated Herring Gull in first-basic plumage. | The original documentation form event lasted from 15:22:00/15:40:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
5
|
Records Committee review for rare bird sighting of Iceland Gull south of Muscatine, 1996
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-12-28
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for an Iceland Gull south of Muscatine in Muscatine County, IA on December 28, 1996. Includes a record review document with votes and a documentation submitted to the committee.
|
White, Gerald
|
Iceland Gull
|
Muscatine
|
On the Mississippi River approximately three miles south of Lock 16.
|
|
The documentation by Gerald White is the only one submitted and forms the basis of this record. Other observers include Betty Wood and Keith Blunt. | Elimination of similar species: [...] The bill appeared smaller than the bills of near-by Herring Gulls. The bird size was near the same size or smaller than the Herring Gulls. [...] I eliminated Glaucous Gull because it would have been larger and heavier looking and the bill would not have been all dark. | The original documentation form event lasted from 11:50:00/11:52:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
Records Committee review for rare bird sighting of Iceland Gull at Red Rock Dam, 1996
|
Administrative records Correspondence Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-04-06
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for an Iceland Gull at Red Rock Dam in Marion County, IA on April 6, 1996. Includes a record review document with votes, correspondence about bird sightings, and a documentation form submitted to the committee.
|
Sinclair, Jim
|
Iceland Gull
|
Red Rock Dam
|
below dam at Red Rock, Marion Co.
|
D.M. River
|
The documentation form by Jim Sinclair is the only one submitted and forms the basis of this record. | Elimination of similar species: This bird did not have the large headed, large billed 'predatory' look of a Glaucous Gull. The overall lightness and the lack of dark primaries and no tail band would eliminate Thayers Gull. | The original documentation form event lasted from 10:54:00/10:56:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
Records Committee review for rare bird sighting of Iceland Gull at Lock and Dam 15 near Davenport, 1996
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-01-05
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for an Iceland Gull at Lock and Dam 15 near Davenport in Scott County, IA on January 5, 1996. Includes a record review document with votes and two documentation forms submitted to the committee.
|
Fuller, James L
|
Iceland Gull
|
Lock and Dam 15
|
Lock & Dam #15, Davenport (Scott County)
|
|
The documentation form by Jim Fuller forms the basis of this record. Another documentation form by Chris Edwards was submitted. Other observers include Kurt Nelson, Eugene Armstrong, Eloise Armstrong, Pam Allen, and Reid Allen. | Elimination of similar species: Comparisons to Thayer's Gull have been made in the description. First-year Glaucous Gull is larger, and has a two-tone black-tipped bill. | The original documentation form event lasted from 08:45:00/09:20:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
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 Mew Gull at Saylorville Reservoir, 1996
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-11-29
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review of a Mew Gull at Saylorville Reservoir in Polk County, IA on November 29, 1996. Includes a record review document with votes, an article in Iowa Bird Life, and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Mew Gull
|
Saylorville Lake
|
Saylorville Reservoir, Polk Co., IA
|
large reservoir
|
The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: The wing pattern, size, and lack of black marks on the face eliminated any of the smaller gulls (i.e. Bonaparte's). The small size and smaller bill size eliminated California Gull. Ring-billed Gull was eliminated on the basis of the darker mantle and upperwings, large, dark eye, and bill color and shape. | The original documentation form event lasted from 16:03:00/16:41:00.
|
Iowa Ornithologists' Union | MS 166
|
10
|
23
|
Records Committee review for rare bird sighting of Black-headed Gull at Red Rock Reservoir, 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 Black-headed Gull at Red Rock Reservoir in Marion County, IA on November 3, 1996. Includes a record review document with votes and a documentation form submitted to the committee.
|
Johnson, Ann
|
Black-headed Gull
|
Lake Red Rock
|
Red Rock Reservoir, Marion Co., IA
|
Large lake
|
The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: Only one other North American gull has a leading white edge to the upperwing- Bonaparte's. Size and jizz helped differentiate this bird from the Bonaparte's, but the dark underwing eliminated the smaller species. | The original documentation form event lasted from 12:30:00/12:33:00.
|
Iowa Ornithologists' Union | MS 166
|
10
|
21
|
Records Committee review for rare bird sighting of Black-headed Gull at Jemmerson Slough, 1996
|
Administrative records Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-06-23
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Black-headed Gull at Jemmerson Slough in Dickinson County, IA on June 23, 1996. Includes a record review document with votes, a photograph, and three documentation forms submitted to the committee.
|
Schoenewe, Lee A.
|
Black-headed Gull
|
Jemmerson Slough Wildlife Management Area
|
Jemerson [sic] Slough, Dickinson County
|
Newly restored wetland with mudflats and raised island
|
The documentation form by Lee Schoenewe is the earliest and the one that forms the basis of this record. Other documentation forms by Jim Fuller and Mark Proescholdt were submitted later. Other observers include Harold White, Ed Thelen, and Tom Stone. | Elimination of similar species: Franklin's Gulls by close comparison; Bonaparte's by head color + dark underwing | The original documentation form event lasted from 16:15:00/17:00:00.
|
Iowa Ornithologists' Union | MS 166
|
10
|
21
|