|
Records Committee review for rare bird sighting for Western Tanager at Swan Lake, 1997
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1997-06-03
|
2000-11-24
|
Rare birds documentation form
|
Records Committee review for a Western Tanager at Swan Lake in Carroll County, IA on June 3, 1997. Includes a record review document with votes and a documentation form submitted to the committee.
|
Thelen, Rob
|
Western Tanager
|
Swan Lake
|
Swan Lake Carroll Co.
|
Grassy Area with scatter tree up to 15' tall
|
The documentation form by Rob Thelen is the only one submitted and forms the basis of this record. | Elimination of similar species: Tanagers - had wing bars. N. Oriole Thicker bill + yellow rump and olive back | The original documentation form event lasted from 07:00:00/07:10:00.
|
Iowa Ornithologists' Union | MS 166
|
13
|
29
|
|
Records Committee review for rare bird sighting for Western Tanager at Des Moines, 1997
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1997-05-02
|
2000-11-24
|
Rare birds documentation form
|
Records Committee review for a Western Tanager at Des Moines in Polk County, IA on May 2, 1997. Includes a record review document with votes and a documentation form submitted to the committee.
|
Rowe, Pauline
|
Western Tanager
|
Des Moines
|
2801 Madison, Des Moines, IA - Back yard
|
On our birdfeeder - large evergreen nearby.
|
The documentation form by Pauline Rowe is the only one submitted and forms the basis of this record. | The original documentation form event lasted from 08:00:00/08:30:00 and 10:30:00/11:00:00.
|
Iowa Ornithologists' Union | MS 166
|
13
|
29
|
|
Records Committee review for rare bird sighting for Western Tanager near Ames, 1997
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1997-05-07
|
2000-11-24
|
Rare birds documentation form
|
Records Committee review for a Western Tanager near Ames in Story County, IA on May 7, 1997. Includes a record review document with votes, an article in Iowa Bird Life, and three documentation forms submitted to the committee.
|
Niyo, Kayleen
|
Western Tanager
|
Ames
|
Dr. Kevin Healy's home, Ames, IA
|
Mature oak/hickory subdivision
|
The documentation form by Kayleen A. Niyo forms the basis of this record. Other documentation forms by Jim Dinsmore and Kevin Healy were submitted. Other observers include Rosanne Healy, Mary Jane Hatfield, and Lucy Rimler. | Elimination of similar species: I have seen Western Tanagers in Wyoming and Idaho, so I knew that was what it was. | The original documentation form event lasted from 17:30:00/19:00:00.
|
Iowa Ornithologists' Union | MS 166
|
13
|
29
|
|
Records Committee review for rare bird sighting for Western Tanager at Lacey-Keosauqua State Park, 1997
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1997-05-03
|
2000-11-24
|
Rare birds documentation form
|
Records Committee review for a Western Tanager at Lacey-Keosauqua State Park in Van Buren County, IA on May 3, 1997. Includes a record review document with votes, an article in Iowa Bird Life, and a documentation form submitted to the committee.
|
Fuller, James L
|
Western Tanager
|
Lacey-Keosauqua State Park
|
Lacey-Keosauqua State Park Near Ely Ford (Van Buren County)
|
|
The documentation form by Jim Fuller is the only one submitted and forms the basis of this record. Another observer was Karole Fuller. | Elimination of similar species: The two yellow wing bars and red on head eliminate any other tanager. | The original documentation form event lasted from 11:40:00/11:45:00.
|
Iowa Ornithologists' Union | MS 166
|
13
|
29
|
|
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 Western Tanager near Swan Lake, 1994
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1994-04-25
|
1996-04-25
|
Rare birds documentation form
|
Records Committee review for a Western Tanager near Swan Lake in Johnson County, IA on April 25, 1994. Includes a record review document with votes, an article in Iowa Bird Life, and three documentation forms submitted to the committee.
|
Dankert, David L.
|
Western Tanager
|
Swan Lake
|
Coralville Reservoir, Johnson County
|
river bottomland
|
The documentation form by David L. Dankert forms the basis of this record. Other documentation forms by James Fuller and Thomas Kent were submitted. | Elimination of similar species: NONE | The original documentation form event lasted from 10:50:00/10:50:08.
|
Iowa Ornithologists' Union | MS 166
|
13
|
29
|
|
Records Committee review for rare bird sighting for Western Tanager at Lake Manawa, 1993
|
Administrative records Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1993-05-11
|
1995-07-08
|
Rare birds documentation form
|
Records Committee review for a Western Tanager at Lake Manawa in Pottawatamie County, IA on May 11, 1993. Includes a record review document with votes, a photograph, and a documentation form submitted to the committee.
|
Rose, B.J.
|
Western Tanager
|
Lake Manawa
|
Lake Manawa, So. of CB, Pottawatamie Co., IA
|
Open beach and lawn area with large cottonwoods.
|
The documentation form by B.J. Rose is the only one submitted and forms the basis of this record. Other observers include Roger Rose, Loren Padelford, and Babs Padelford. | Elimination of similar species: Summer and Scarlet Tanagers do not have wing-bars. | The original documentation form event lasted from approximately 13:00:00/14:30:00.
|
Iowa Ornithologists' Union | MS 166
|
13
|
29
|
|
Records Committee review for rare bird sighting for Western Tanager at Lime Creek Nature Center, 1993
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1993-05-10
|
1995-07-08
|
Rare birds documentation form
|
Records Committee review for a Western Tanager at Lime Creek Nature Center in Cerro Gordo County, IA on May 10, 1993. Includes a record review document with votes and a documentation form submitted to the committee.
|
Nelson, Curtis
|
Western Tanager
|
Lime Creek Nature Center
|
Cerro Gordo Co. Lime Creek Nature Center Woods
|
Woods; small clearing near a small stream
|
The documentation form by Curt Nelson is the only one submitted and forms the basis of this record. Another observer was Fred Heinz. | Elimination of similar species: Juvenile or Molting Scarlet Tanager - The yellow areas were very bright and clear without any suggestion of a greenish tint Red area was neatly confined to the head + face. 1st yr. Summer tanager - same as above | The original documentation form event lasted from approximately 17:30:00/17:35:00.
|
Iowa Ornithologists' Union | MS 166
|
13
|
29
|
|
Records Committee review for rare bird sighting for Western Tanager at Elk Rock State Park, 1991
|
Administrative records Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1991-05-07
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review for a Western Tanager at Elk Rock State Park in Marion County, IA on May 7, 1991. Includes a record review document with votes, a photograph with a report, and two documentation forms submitted to the committee.
|
Johnson, Ann
|
Western Tanager
|
Elk Rock State Park
|
South Elk Rock State Park, Red Rock Reservoir, Marion Co., Iowa
|
Soft deciduous and brushy area near water
|
The documentation form by Ann Johnson forms the basis of this record. Another documentation form by Jim Fuller was submitted. Other observers include Tim Schantz, Cal Knight, Bernie Knight, Eugene Armstrong, Eloise Armstrong, Dennis Thompson, and Beth Brown. | Elimination of similar species: The combination of red face and yellow body eliminated all other tanagers. Females of other species would not show red on the face, and young males going into first alternate plumage would not have the red coloration restricted to the head. | The original documentation form event lasted from 12:45:00/17:30:00 with bird seen three times for a total of 25-30 minutes.
|
Iowa Ornithologists' Union | MS 166
|
13
|
29
|
|
Records Committee review for rare bird sighting for Western Tanager at Decorah, 1986
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1986-04-22
|
1993-09-07
|
Rare birds documentation form
|
Records Committee review for a Western Tanager at Decorah in Winneshiek County, IA on April 22, 1986. Includes a record review document with votes, a summary of the review, and a documentation form submitted to the committee.
|
Hovde, Harriet Hovde, Oivind M.
|
Western Tanager
|
Decorah
|
603 North St. Decorah Winneshiek County
|
Open yard with (deciduous + conifers) trees and shrubs near feeding station
|
The documentation form by Harriet and Oivind Hovde is the only one submitted and forms the basis of this record. Other observers include Orene Docken, Ardith Koenig, and Dorothy Peterson. | Elimination of similar species: Scarlet Tanager - Eliminated because of color and wing bars | The original documentation form event occurred around 16:30:00 on April 22, 1986 and 10:00:00 on April 24, 1986.
|
Iowa Ornithologists' Union | MS 166
|
13
|
29
|
|
Records Committee review for rare bird sighting for Western Tanager at Sabula, 1984
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1984-05-15
|
1993-09-01
|
Rare birds documentation form
|
Records Committee review for a Western Tanager at Sabula in Jackson County, IA on May 15, 1984. Includes a record review document with votes, a summary of the review, and a documentation form submitted to the committee.
|
Johnson, Lee G.
|
Western Tanager
|
Sabula
|
near Sabula, Iowa along Mississippi River
|
|
The documentation form by Lee G. Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: There is no other bird that this bird could be confused with. | The original documentation form event lasted from 07:20:00/07:25:00.
|
Iowa Ornithologists' Union | MS 166
|
13
|
29
|
|
Records Committee review for rare bird sighting of Thayer's Gull at IPL Ponds in Pottawattamie County, 1989
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1989-10-29
|
1993-08-06
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at IPL Ponds in Pottawattamie County, IA on October 29, 1989. Includes a record review document with votes and three documentation forms submitted to the committee.
|
Grenon, Alan G.
|
Thayer's Gull
|
MidAmerican Energy Ponds
|
Iowa, Pottawattamie County, south of Council Bluffs, the north pond of the Iowa Power and Light plant's ponds, two miles north of the county line (three miles north of the Bellevue exit on I-29), just east of Interstate highway 29.
|
|
The documentation form by Alan G. Grenon forms the basis of this record. Other documentation forms by Babs Padelford and Ross Silcock were submitted. Other observers include B.J. Rose, Doug Rose, Loren Padelford as well as four unidentified observers. | Elimination of similar species: The most likely similar species are Iceland and Herring Gulls. Iceland Gull (first winter) is eliminated by the combination of the following characters: wing-tip darker than body at rest; wing-tip and secondaries darker above than remainder of wing; tail marked above by a darker band covering most of the distal portion; a possible darker area around the eye. Herring Gull (first winter) is eliminated by the combination of the following characters: wing-tip at rest brown-tan, not black; wing-tip and secondary bar tan in flight, not black; primaries with thin, pale tips; tail bar tan, not black; bill all dark; bill and head delicate; bill thin. Glaucous Gull would have been larger relative to Ring-billed Gulls, with a massive bill light with a dark tip, large head, and wing-tips and secondaries would not have been darker than other upper parts. California Gull (first winter) would have black or near-black primaries, secondaries, tail, and a mostly pale bill with a black tip. Glaucous-winged Gull and hybrids thereof eliminated by bill and head structure and body size all smaller/finer in this bird, tail and wing pattern. AG. | The original documentation form event occurred around 09:30:00 on October 29, 1989, from 11:30:00/12:15:00 and around 14:00:00 on the October 30, 1989.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull at North Overlook Beach at Red Rock Reservoir, 1989
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1989-11-06
|
1993-08-06
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at North Overlook Beach at Red Rock Reservoir in Marion County, IA on November 6, 1989. Includes a record review document with votes and a documentation form submitted to the committee.
|
Johnson, Ann
|
Thayer's Gull
|
North Overlook Park
|
North Overlook Beach, Lake Red Rock, Marion Co, IA
|
Sandy beach on man-made reservoir
|
The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: Iceland Gull - basically eliminated by darker color and narrow chocolate edges to outer primaries. Kumlien's - presence of tail band would seem to eliminate Herring - eliminated by combination of: structure and size of body and bill; shape of head; more uniform coloration above, especially lighter colored primaries; light flight feathers from below contrasting with darker wing lining; lighter color of tail band | The original documentation form event lasted from 10:30:00/10:35:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Red Rock Reservoir, 1987
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1987-01-03
|
1993-09-07
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at Red Rock Reservoir in Marion County, IA on January 3, 1987. Includes a record review document with votes and a documentation form submitted to the committee.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Thayer's Gull
|
Lake Red Rock
|
Red Rock Res., Marion Co., Iowa
|
reservoir, partly frozen
|
The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Other observers include Tom Staudt, Steve Dinsmore, and unidentified other observers. | Elimination of similar species: The uniform coloration and lack of dark wing tips were the main marks used to separate it from Herring Gull. | The original documentation form event lasted from approximately 13:30:00/13:45:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Bettendorf, 1989
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1989-02-18
|
1993-08-05
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at Bettendorf in Scott County, IA on February 18, 1989. Includes a record review document with votes and a documentation form submitted to the committee.
|
Johnson, Ann
|
Thayer's Gull
|
Bettendorf
|
Mississippi River, Bettendorf, Scott Co., IA
|
seen from shore just south of I80 in area of cabins
|
The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: The primary identification was done through the size and shape of the head. The bird was lighter in color than the first-winter herring gulls in the same area and the wing pattern on both upper and lower sides eliminated herring, ring-billed and Iceland gulls. | The original documentation form event lasted from 12:42:00/12:42:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull near Lindsay Park in Davenport, 1989
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1989-02-18
|
1993-08-05
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull near Lindsay Park in Davenport in Scott County, IA on February 18, 1989. Includes a record review document with votes and a documentation form submitted to the committee for this sighting.
|
Petersen, Peter C.
|
Thayer's Gull
|
Lindsay Park
|
Lindsay Park Boat Club harbor, east edge of Davenport Scott Co.
|
On ice shelf along Mississippi River, 40 yards from sea wa[...]
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record.Other observers include Walter Zuurdeeg and many unidentified observers. | Elimination of similar species: [...] Immature gull same size as nearby Herring Gulls. [...] Head smaller than Herrings, bill more slight, black, + not thickened at the tip, compared to Herrings. When wings spread - this was seen twice, the upper surface seemed fairly uniform with no dark tip pattern as in the Herrings. | The original documentation form event lasted from 09:50:00/09:55:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Saylorville Dam, 1989
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1989-01-28
|
1993-08-05
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at Saylorville Dam in Polk County, IA on January 28, 1989. Includes a record review document with votes and a documentation form submitted to the committee.
|
Johnson, Ann
|
Thayer's Gull
|
Saylorville Dam
|
Saylorville Lake, Polk Co., IA
|
dam on Des Moines River forming reservoir
|
The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: The primary identification was done through the size and shape of the head. Other similar gulls do not share this "dove head." The bird was confirmed by the silvery underwings and very little dark coloring on the upper side of the primaries, characteristics not shared by similarly gray-mantled gulls. | The original documentation form event lasted from 08:40:00/08:40:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull near Horse Island near Davenport, 1989
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1989-01-02
|
1993-08-05
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull near Horse Island near Davenport in Scott County, IA on January 2, 1989. Includes a record review document with votes and a documentation form submitted to the committee.
|
Petersen, Peter C.
|
Thayer's Gull
|
Horse Island
|
downstream tip of Enchanted Island. Davenport, Scott Co. IA
|
Mississippi River - edge of open water, Iowa side
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Brian Blevins and Corey Blevins. | Elimination of similar species: Herring Gull - eye light, wing tips black with white windows, bill larger than Thayers. California Gull - eye light, wing tips black with white windows, yellow legs. | The original documentation form event lasted from 13:35:00/13:50:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Pool 19 on the Mississippi River near Montrose, 1988
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1988-12-31
|
1993-08-04
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at Pool 19 on the Mississippi River near Montrose in Lee County, IA on December 31, 1988. Includes a record review document with votes and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Thayer's Gull
|
Pool 19
|
Pool 19 of Mississippi R., near Montrose, Lee Co., IA
|
resting on ice and flying over river with other gulls
|
The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. Another observer includes Bart Ballard. | Elimination of similar species: wing pattern, tail pattern, rounder head, and even color of body eliminates similar Herring Gull. | The original documentation form event lasted from 10:15:00/10:25:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Saylorville Dam, 1988
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1988-12-30
|
1993-08-04
|
Rare birds documentation form
|
Records Committee review for two Thayer's Gulls at Saylorville Dam in Polk County, IA on December 30, 1988. Includes a record review document with votes and a documentation form submitted to the committee.
|
Johnson, Ann
|
Thayer's Gull
|
Saylorville Dam
|
Saylorville Lake, Polk Co., IA
|
dam on Des Moines River forming reservoir
|
The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: The primary identification was done through the size and shape of the head. Other similar gulls do not share this "dove head." The adult was confirmed by the silvery underwings, not shared by similarly gray-mantled gulls, and the first year bird was confirmed by the uniformity of its body color. | The original documentation form event lasted from 15:40:00/15:55:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Red Rock Dam, 1988
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1988-12-13
|
1993-08-04
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at Red Rock Dam in Marion County, IA on December 13, 1988. Includes a record review document with votes and a documentation form submitted to the committee.
|
Johnson, Ann
|
Thayer's Gull
|
Red Rock Dam
|
below dam - Lake Red Rock, Marion Co, IA
|
dam on Des Moines River forming reservoir; open river with islands
|
The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: Ring-billed eliminated by size and leg color. Herring eliminated by head shape and eye color. Iceland eliminated by eye color, mantle color, and size and shape of head. | The original documentation form event lasted from 15:01:00/15:03:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull north of Jester Park at Saylorville Reservoir, 1988
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1988-11-30
|
1993-08-04
|
Rare birds documentation form
|
Records Committee review for one to three Thayer's Gulls north of Jester Park at Saylorville Reservoir in Polk County, IA on November 30, 1988. Includes a record review document with votes and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Thayer's Gull
|
Jester Park
|
Saylorville Reservoir, Polk Co.-north of Jester Park
|
feeding in river channel with thousands of other gulls
|
The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. Other observers include many unidentified other observers. | Elimination of similar species: The bill and leg color and size eliminates all gulls except Herring, Thayer's, and Iceland gulls. The uniform dark color of the wings, lack of a lighter "window" on the inner primaries, and the silvery color of the underside of the flight feathers eliminates 1st-winter Herring and Iceland gulls. | The original documentation form event lasted from 13:38:00/14:55:00 on November 30, 1988.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull north of Jester Park at Saylorville Reservoir, 1988
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1988-11-30
|
1993-08-04
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull north of Jester Park at Saylorville Reservoir in Polk County, IA on November 30, 1988. Includes a record review document with votes and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Thayer's Gull
|
Jester Park
|
Saylorville Reservoir, Polk Co.-north of Jester Park
|
feeding in river channel with thousands of other gulls
|
The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: The bill and leg color and size eliminates all gulls except Herring, Thayer's, and Iceland gulls. The uniform dark color of the wings, lack of a lighter "window" on the inner primaries, and the silvery color of the underside of the flight feathers eliminates 1st-winter Herring and Iceland gulls. | The original documentation form event lasted from 13:38:00/14:55:00.
|
Iowa Ornithologists' Union | MS 166
|
11
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3
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Records Committee review for rare bird sighting of Thayer's Gull at Lock and Dam 15 in Davenport, 1988
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Administrative records Field notes
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Bird watching Ornithology Ornithology--Societies, etc
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1988-01-01
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1993-08-04
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Rare birds documentation form
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Records Committee review for a Thayer's Gull at Lock and Dam 15 in Davenport in Scott County, IA on January 1, 1988. Includes a record review document with votes and a documentation form submitted to the committee.
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Kent, Thomas H. (Thomas Hugh), 1934-
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Thayer's Gull
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Lock and Dam 15
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Lock + Dam 15, Davenport, Scott Co, IA
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Mississippi R.
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The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Other observers include Francis Moore and Dick Kraemer. | Elimination of similar species: [...] There were many first year Herrings that were darker with dark wingtips. We also saw, but not at same time, a larger, slightly lighter gull without tail band that we identified as a first year Glaucous Gull. It was consistently larger than Herring and heavier bodied. Uniform color, white flight feathers from below separate bird from Herring. Size and tail band separate from Glaucous. | The original documentation form event lasted from 10:15:00/10:45:00.
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Iowa Ornithologists' Union | MS 166
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11
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3
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Records Committee review for rare bird sighting of Thayer's Gull at Saylorville Reservoir Dam, 1987
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Administrative records Field notes
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Bird watching Ornithology Ornithology--Societies, etc
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1987-12-02
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1993-09-07
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Rare birds documentation form
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Records Committee review for two or more Thayer's Gulls at Saylorville Reservoir Dam in Polk County, IA on December 2, 1987. Includes a record review document with votes and five documentation forms submitted to the committee.
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Dinsmore, Stephen J.
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Thayer's Gull
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Saylorville Dam
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Saylorville Reservoir, Polk Co.
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sitting on ice with other gulls
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The documentation form by Steve Dinsmore forms the basis of this record. Other documentation forms by Francis L. Moore, Steve Dinsmore, and Mark Proescholdt were submitted. Other observers include Andy Fix, Beth Proescholdt, Eugene Armstrong, Eloise Armstrong, Bob Cecil, Bery Engebretsen, Jim Sinclair, and many unidentified observers. | Elimination of similar species: The overall dark color of the bird and the lack of paler wingtips eliminates first-winter Iceland Gull. The translucent flight feathers, uniform body color, lack of a "window" on the upperwing, smaller, thinner bill, rounder head, dark smudge around the eye, and smaller size eliminates first-winter Herring Gull. The uniform body color, lack of a dark tail band, and translucent flight feathers eliminates first-winter Lesser Black-backed Gull. | The original documentation form event lasted from 08:00:00/08:05:00.
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Iowa Ornithologists' Union | MS 166
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11
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3
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