|
Records Committee review for rare bird sighting for Pygmy Nuthatch at Des Moines, 1977
|
Administrative records Clippings (information artifacts) Correspondence Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1977-01-26
|
1993-08-26
|
Rare birds documentation form
|
Records Committee review for a Pygmy Nuthatch at Des Moines in Polk County, IA on January 26, 1977. Includes a record review document with votes, multiple articles from Iowa Bird Life, correspondence related to bird sighting and review, and two documentations submitted to the committee.
|
Brown, Woodward H.
|
Pygmy Nuthatch
|
Des Moines
|
[...] 5400 Woodland Ave.
|
|
The documentation form by Woodward H. Brown is the earliest and the one that forms the basis of this record. Another documentation form by Nicholas Halmi was submitted later. Other observers include Eugene Armstrong, Eloise Armstrong, Mary Brown, Dorothy Ely, Peter C. Petersen, Mary Lou Petersen, Margaret Brooke, Lillian Serbousek, Allen Mueller, and many unidentified observers. | Elimination of similar species: [...] According to plumage descriptions of the Pigmy and Brown-headed Nuthatches, the only noticeable difference between the two (short of having the bird in hand) is in the color of the crown and nape. The field guides are agreed that the crown of the Brown-headed is brown, but there is a lack of unanimity in their descriptions of the crown of the Pigmy. [...] Margaret Brooke, in writing up the observation for IBL, describes the cap as being "brownish" but has no doubt about this nuthatch being a Pigmy. Mary and I feel the grayish olive description comes closest and cinches the Pigmy identification. | The original documentation form event occurred around 09:30:00.
|
Iowa Ornithologists' Union | MS 166
|
12
|
51
|
|
Records Committee review for rare bird sighting for Boreal Chickadee at Osage, 1978
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1978-11-24
|
1993-08-26
|
Rare birds documentation form
|
Records Committee review for two Boreal Chickadees at Osage in Mitchell County, IA on November 24, 1978. Includes a record review document with votes, an article in Iowa Bird Life, and a documentation form submitted to the committee.
|
Woolfries, Andy
|
Boreal Chickadee
|
Osage
|
Osage, Iowa Home Feeder board
|
Home bird feeder - back yard - shrubs and trees.
|
The documentation form by Andy Woolfries is the only one submitted and forms the basis of this record. | Elimination of similar species: Associated with other chickadees but noticable [sic] because of distinctive brown cap. There appeared to be only two. They were positively identified at least 20 times from a distance of about six feet. Reference: "Birds of North America". | The original documentation form event occurred at least 20 times over November 24 to 26, 1978.
|
Iowa Ornithologists' Union | MS 166
|
12
|
49
|
|
Records Committee review for rare bird sighting for Boreal Chickadee at Des Moines, 1976
|
Administrative records Clippings (information artifacts) Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1976-11-17
|
1996-04-24
|
Rare birds documentation form
|
Records Committee review for a Boreal Chickadee at Des Moines in Polk County, IA on November 17, 1976. Includes a record review document with votes, a photograph, multiple articles from Iowa Bird Life, a request for reconsideration of record, and a documentation form submitted to the committee.
|
Brown, Woodward H.
|
Boreal Chickadee
|
Des Moines
|
Des Moines, IA
|
General: urban, residential Specific: large back yard with both evergreen and deciduous trees and large stand of yew adjacent to feeders
|
The documentation form by Woodward H. Brown is the only one submitted and forms the basis of this record. Other observers include Dick Mooney, Nicholas Halmi, Lurene Warters, and many unidentified observers. | Elimination of similar species: Superficially similar to any of the chickadees | The original documentation form event lasted from 15:45:00/16:15:00.
|
Iowa Ornithologists' Union | MS 166
|
12
|
49
|
|
Records Committee review for rare bird sighting for Common Raven at Lake Manawa State Park, 1998
|
Administrative records Correspondence Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1998-02-05
|
2000-11-24
|
Rare birds documentation form
|
Records Committee review for a Common Raven at Lake Manawa State Park in Pottawattamie County, IA on February 5, 1998. Includes a record review document with votes and a documentation letter submitted to the committee.
|
Bunnimit, Manit
|
Common Raven
|
Lake Manawa State Park
|
[...] Lake Manawa State Park, near Council Bluffs, IA. [...] was travelling south on the road that follows the west edge of Lake Manawa.
|
|
The documentation letter by Manit Bunnimit is the only one submitted and forms the basis of this record. | Elimination of similar species: [...] It flew for most of the time by soaring with its wings held very flat, only twice flapping its wings momentarily (shallow wingbeats) and once folding its wings rather tightly and gliding. All of the crows I have seen flap steadily, gliding only occasionally. [...] It could not have been mistaken even for the tails of the occasional American Crows that appear quite rounded. The sheer size of the bird and the wedge-shaped tail were enough to distinguish it from any of the crows, but what about the Chihuahuan Raven? Fortunately, as it flew by, the bird made two brief call notes that were very hoarse (sounding much more like grrrawgk than the gaw of the American Crow), and much deeper than the Chihuahuan Raven that I heard in northern Texas. However, because it has been a few years since I had seen or heard the Chihuahuan, I decided to double check the calls on a tape I had at home. The tape and I agree that the call was that of a Common Raven. | The original documentation form event lasted from approximately 11:10:00/11:11:00.
|
Iowa Ornithologists' Union | MS 166
|
12
|
47
|
|
Records Committee review for rare bird sighting of Common Raven west of Mason City, 1966
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1966-12-28
|
1994-11-04
|
Rare birds documentation form
|
Records Committee review for a Common Raven west of Mason City in Cerro Gordo County, IA on December 28, 1966. Includes a record review document with votes and a documentation article submitted to the committee.
|
Roosa, Dean M.
|
Common Raven
|
Mason City
|
[...] driving from Clear Lake to Mason City
|
|
The documentation article by Dean M. Roosa forms the basis of this record. Other observers include Paul Bailey. | Elimination of similar species: [...] Its flight pattern, size, and rounded or wedge-shaped tail distinguished it from nearby Crows.
|
Iowa Ornithologists' Union | MS 166
|
12
|
47
|
|
Records Committee review for rare bird sighting for Common Raven at Dubuque, 1983
|
Administrative records Correspondence Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1983-12-17
|
1993-09-01
|
Rare birds documentation form
|
Records Committee review for a Common Raven at Dubuque in Dubuque County, IA on December 17, 1983. Includes a record review document with votes, correspondence relevant to bird sighting and review, a summary of review, and a documentation submitted to the committee.
|
Herrman, William
|
Common Raven
|
Dubuque
|
Location was about three miles south of Dubuque city limits, in narrow valley with scattered cedar trees, with bird in a leafless tree
|
|
The documentation by William Herrmann is the only one submitted and forms the basis of this record. Other observers include John Feller and John Stampe. | Elimination of similar species: One half larger than a dozen Am. crows about 100 feet away from the raven at same distance | The original documentation form event occurred around 14:00:00.
|
Iowa Ornithologists' Union | MS 166
|
12
|
47
|
|
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 Fish Crow at Port Louisa National Wildlife Refuge, 1995
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1995-04-21
|
2000-11-18
|
Rare birds documentation form
|
Records Committee review for four Fish Crows at Port Louisa National Wildlife Refuge in Louisa County, IA on April 21, 1995. Includes a record review document with votes and three documentation forms submitted to the committee.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Fish Crow
|
Port Louisa National Wildlife Refuge - Louisa Division
|
Louisa Refuge, Mark Twain NWR, Louisa Co., IA
|
Mississippi River bottoms
|
The documentation form by Thomas H. Kent is the earliest and the one that forms the basis of this record. Other documentation forms by Ann Johnson and Jim Fuller were submitted later. Other observers include Dick Tetrault, Chuck Fuller, and Tim Schantz. | Elimination of similar species: The Records Committee has not accepted two previous records of Fish Crow along the Mississippi River in Louisa County because of the difficulty in substantiating the identification. I was well aware of this, and like other committee members, I believed that they were likely present in this area. I can only say that I was watching the birds when I heard them, which eliminates the possibility that they were young American Crows. I would not want to rely on the morphologic features. I was impressed that this group stayed together in the flooded woods, which was unlike the behavior of the American Crows. | The original documentation form event lasted from 08:40:00/09:30:00 and 10:25:00/10:35:00.
|
Iowa Ornithologists' Union | MS 166
|
12
|
46
|
|
Records Committee review for rare bird sighting for Fish Crow at Big Timber Unit of Port Louisa National Wildlife Refuge , 1994
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1994-04-25
|
1997-10-03
|
Rare birds documentation form
|
Records Committee review of a Fish Crow at Big Timber Unit of Port Louisa National Wildlife Refuge in Louisa County, IA on April 25, 1994. Includes a record review document with votes and two documentation forms submitted to the committee.
|
McKay, Kelly
|
Fish Crow
|
Port Louisa National Wildlife Refuge - Big Timber Division
|
Big Timber Unit of Mark Twain National Wildlife Refuge approx. 2.0 miles downstream of Kilpeck landing. This landing is located 8.0 miles South of Muscatine, Ia. on County Road X61.
|
Bottomland Hardwood Forest
|
The documentation form by Kelly McKay forms the basis of this record. Another documentation form by Peter C. Petersen was submitted. Other observers include Brian Blevins, Michael Bornstein, and Gerald White. | Elimination of similar species: American Crow: different sounding calls; This bird was smaller than American Crows | The original documentation form event lasted from 10:00:00/10:05:00.
|
Iowa Ornithologists' Union | MS 166
|
12
|
46
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Coralville Dam, 1981
|
Administrative records Correspondence Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1981-11-07
|
1993-08-26
|
Rare birds documentation form
|
Records Committee review for two Thayer's Gulls at Coralville Dam in Johnson County, IA on November 7, 1981. Includes a record review document with votes, correspondence and commentary about the sighting, and a documentation form submitted to the committee.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Thayer's Gull
|
Coralville Dam
|
Coralville Res. Dam, west overlook, Johnson Co. Iowa
|
Reservoir, just above dam, in water and on swimming beach
|
The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Other observers include Carl Bendorf, Mike Newlon, and many unidentified other observers. | Elimination of similar species: Photographs taken at the first encounter with a Celestron 750 mm lens demonstrate the size difference, the bill and head shape difference, the lighter overall color, and the window in the wing. An adult Herring was in the photo with the Thayer's on 7 Nov and imm Herring were photographed on 10 Nov for comparison. | The original documentation form event lasted from 09:25:00/09:50:00 and 11:00:00/11:20:00 on November 7, 1981 and 07:30:00/08:30:00 on November 8, 1981.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Lake Manawa, 1981
|
Administrative records Correspondence Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1981-12-05
|
1993-08-26
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at Lake Manawa in Pottawattamie County, IA on December 5, 1981. Includes a record review document with votes, correspondence and commentary about the sighting, and a documentation form submitted to the committee.
|
Silcock, W. Ross
|
Thayer's Gull
|
Lake Manawa
|
Lake Manawa
|
|
The documentation form by W. Ross Silcock is the only one submitted and forms the basis of this record. | Elimination of similar species: [...] Smaller than adult Herring Gull (winter plumage, red spot end of lower mandible) beside it, legs a little pinker. Larger than Ring-billed Gulls- flock of 14 adjacent. [...] Headmuch [sic] smaller relative to body than in the Herring Gull- also flatter-appearing. [...] 1. Bill was black (or very dark); this , combined with the rather pale underparts relative to the rest of the (also rather pale) plumage tends to rule out a first year Herring Gull. 2. Bill and head size and shape were not as heavy-appearing as in Herring Gull. Direct comparison with adjacent adult Herring Gull was very useful in deciding this. [...] 5. Size and pinker legs than Herring Gull are not sure characters, but lend support to identification as Thayer's Gull.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Coralville Dam, 1981
|
Administrative records Correspondence Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1981-11-08
|
1993-08-26
|
Rare birds documentation form
|
Records Committee review for three Thayer's Gulls at Coralville Dam in Johnson County, IA on November 8, 1981. Includes a record review document with votes, correspondence and commentary about the sighting, summary of the review, and a documentation form submitted to the committee.
|
Moore, Francis L.
|
Thayer's Gull
|
Coralville Dam
|
Coralville Reservoir
|
Open wate [sic] near small sandy beach near the Dam area, Johnson County
|
The documentation form by Francis L. Moore is the only one submitted and forms the basis of this record. Other observers include Russell Hays, Tom Kent, Tom Shires, Tom Staudt, and many unidentified other observers. | Elimination of similar species: Ring-billed Gull and Herring Gull, see above. The Ring-billed Gulls were seen in direct contrast to these three birds and were definitely much smaller birds. The Herring Gulls (first year birds) that I have seen have more of a contrast between the rump and back and upper wing surfaces and none that I remember showed the whitish trailing edge on the tail. [...] The three birds seen were about the size of Herring Gulls in typical first year plumage. They were obviously large gulls of the genus Larus with a noticeably larger size than the Ring-billed Gulls and one Bonaparte's Gull that were next to the three larger birds. [...] There were no Herring Gulls nearby with which to make a comparison of size and coloration. The bills of all three gulls were black did not seem as heavy or bulky as the bill of a Herring Gull. | The original documentation form event lasted from 08:10:00/09:30:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of California Gull at Cherry Glen Recreation Area at Saylorville Reservoir, 1986
|
Administrative records Correspondence Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1986-12-07
|
1996-01-25
|
Rare birds documentation form
|
Records Committee review for a California Gull at Cherry Glen Recreation Area at Saylorville Reservoir in Polk County, IA on December 7, 1986. Includes a record review document with votes, correspondence about the bird sighting and a request for re-evaluation of sighting, summary of the review, and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
California Gull
|
Cherry Glen Recreation Area
|
Saylorville Reservoir, Polk Co. (Cherry Glen Recreation Area)
|
sitting on ice with other gulls
|
The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: Herring Gull eliminated by larger size, lighter mantle color, lack of black and red spots on bill, and wrong leg color (pink, although a very few Herring Gull show yellowish legs). Ring-billed Gull eliminated by smaller size, lighter mantle color, lack of a black ring on bill, and by yellower leg color. | The original documentation form event lasted from 13:13:00/14:08:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
1
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Lake Manawa, 1981
|
Administrative records Clippings (information artifacts) Correspondence Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1981-03-19
|
1993-08-26
|
Rare birds documentation form
|
Records Committee review for two Thayer's Gulls at Lake Manawa in Pottawattamie County, IA on March 19, 1981. Includes a record review document with votes, correspondence and comments about the sighting, an article in Iowa Bird Life, and four documentation forms submitted to the committee.
|
Silcock, W. Ross
|
Thayer's Gull
|
Lake Manawa
|
Lake Manawa, Pottawattamie County, Iowa.
|
|
The documentation form by Ross Silcock is the earliest and the one that forms the basis of this record. Other documentation forms by Thomas H. Kent, Peter C. Petersen, and Robert K. Myers were submitted later. Other observers include Tom Shires, James Kovanda, Sandra Kovanda, Tanya Bray, Babs Padelford, Loren Padelford, B.J. Rose, and four unidentified other observers. | Elimination of similar species: The above description separates by direct comparison first-year Thayer's and Herring Gulls, the most similar species present. Thayer's may be confused in first year plumage with Kumlien's form of Iceland Gull, but the Thayer's had primaries slightly darker than the mantle (from above), whereas the opposite occurs in Iceland Gull (Lehman). Lehman also notes that some first-year Western Gulls may show translucent primaries from below in certain light, but these observations took place in excellent light at fairly close range. | The original documentation form event lasted from approximately 09:30:00/11:00:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of California Gull at Cherry Glen Recreation Area at Saylorville Reservoir, 1997
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1997-12-09
|
2000-11-24
|
Rare birds documentation form
|
Records Committee review for a California Gull at Cherry Glen Recreation Area at Saylorville Reservoir in Polk County, IA on December 9, 1997. Includes a record review document with votes and a documentation form submitted to the committee.
|
Overton, Michael D.
|
California Gull
|
Cherry Glen Recreation Area
|
Polk co., Saylorville Reservoir, Cherry Glen Recreation Area
|
On ice along lakeshore of large manmade lake in mixed hardwood forest agricultural cropland.
|
The documentation form by Michael D. Overton is the only one submitted and forms the basis of this record. Other observers include Eugene Armstrong and Eloise Armstrong. | Elimination of similar species: Ring-billed Gull, Herring Gull: Immatures of both species were present so direct comparisons were possible. Bill color, shape, and size reletive [sic] to head. Tail and rump color. Wing color and pattern especially mantle, greater coverts, and secondaries. | The original documentation form event lasted from 10:20:00/10:55:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
1
|
|
Records Committee review for rare bird sighting of California Gull at Gull Point at West Okoboji Lake, 1997
|
Administrative records Correspondence Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1997-09-07
|
2000-11-24
|
Rare birds documentation form
|
Records Committee review of a California Gull at Gull Point at West Okoboji Lake in Dickinson County, IA on September 7, 1997. Includes a record review document with votes, correspondence from Ken Brock to Thomas Kent, and two copies of a documentation form submitted to the committee.
|
Schoenewe, Lee A.
|
California Gull
|
Gull Point
|
Gull Point, West Lake Okoboji, Dickinson Co.
|
Rocky point on natural lake
|
|
Iowa Ornithologists' Union | MS 166
|
11
|
1
|
|
Records Committee review for rare bird sighting of California Gull at Lost Island Lake, 1996
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-11-03
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a California Gull at Lost Island Lake in Palo Alto County, IA on November 3, 1996. Includes a record review document with votes and a documentation form submitted to the committee.
|
Schoenewe, Lee A.
|
California Gull
|
Lost Island Lake
|
N. Shore of Lost Island Lake, Palo Alto, Co.
|
Shoreline
|
The documentation form by Lee A. Schoenewe is the only one submitted and forms the basis of this record. | Elimination of similar species: Herring Gull - bill, eye and leg color Ring-billed Gull - Bill size, tail + wingtips in flight | The original documentation form event lasted from 10:35:00/10:55:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
1
|
|
Records Committee review for rare bird sighting of California Gull at Mini-Wakan State Park, 1996
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-09-06
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a California Gull at Mini-Wakan State Park in Dickinson County, IA on September 6, 1996. Includes a record review document with votes, an article in Iowa Bird Life, and a documentation form submitted to the committee.
|
Bangma, Jim Johnson, Ann
|
California Gull
|
Mini Wakan State Park
|
Spirit Lake, north end, Dickinson Co., IA
|
Lakeshore
|
The documentation form by Jim Bangma and Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: Ring-billed is ruled out by the solid gray mantle combined with the extensive molt of the flight feathers. Ring-bills and similar 3 year gulls obtain the gray mantle during a post-juvenal molt. Flight feathers are not molted at this time. Flight feathers are molted after one year, at which time the body of a Ring-bill would be much whiter. Also, the mantle was a much darker shade of gray than any Ring-bill present. Additionally, Ring-billed Gull's bill is proportionally smaller and thinner, with more curve. Herring Gull would be larger. The mantle of a Herring Gull would be paler gray, nearly the same shade as that of the Ring-bills. The bill would be proportionally heavier with a more marked gonydeal angle. Herring Gulls may show a black tipped bill, but the black normally blends into the pink of the base or runs in along the cutting edges of the bill. The bill and legs would be brighter pink. Other similarly sized extralimitals can be ruled out by the mantle color as well as bill pattern and shape. A striking feature of this bird was its leg length. In an effort to better understand this, Bangma paid a visit to the American Museum of Natural History and examined specimens of Herring, Ring-billed and California Gulls. Measurements were made of a representative selection of specimens. The following chart shows the results. [Chart] While there is some overlap between these species, it is interesting to note that the breaking point between California Gull and the other two is very near the ratio of 1.5. While not diagnostic by itself, the length of this bird's tarsus relative to the culmen as estimated by us in the field is indicative of California Gull. | The original documentation form event lasted from 11:00:00/11:40:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
1
|
|
Records Committee review for rare bird sighting of California Gull at 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
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Saylorville Dam
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Saylorville Reservoir dam, Polk County, Iowa
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The documentation form by Randy Pinkston is the earliest and the one that forms the basis of this record. Another documentation form by Stephen J. Dinsmore was submitted later. Another observer includes Susan Grove. | Elimination of similar species: I am uncomfortable committing to California Gull given the brief and distant view I had, and my limited past experience with the species. My fear is that this was just a small Herring Gull. Herring can be quite variable in overall size, bill size, and in terms of color and shade of the first-winter plumage. Supposedly 10-15% of first-winter Herrings' can have a "dipped-in-ink" bill in the fall (Harrison 1983 or Grant 1986?). | The original documentation form event lasted from 12:30:00/15:30:00.
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Iowa Ornithologists' Union | MS 166
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11
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1
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Records Committee review for rare bird sighting of California Gull at Carter Lake, 1993
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Administrative records Clippings (information artifacts) Field notes Photographs
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Bird watching Ornithology Ornithology--Societies, etc
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1993-11-21
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1995-07-08
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Rare birds documentation form
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Records Committee review for a California Gull at 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.
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Bray, Tanya
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California Gull
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Carter Lake
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Carter Lake, Pottawattamie County
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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.
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Iowa Ornithologists' Union | MS 166
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11
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1
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Records Committee review for rare bird sighting of California Gull at Babcock Access at Coralville Reservoir, 1990
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Administrative records Clippings (information artifacts) Field notes
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Bird watching Ornithology Ornithology--Societies, etc
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1990-10-27
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1993-07-17
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Rare birds documentation form
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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.
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Kent, Thomas H. (Thomas Hugh), 1934-
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California Gull
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Babcock Access
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Babcock Access, Coralville Reservoir, Johnson County, Iowa
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shallow, open area of reservoir
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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.
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Iowa Ornithologists' Union | MS 166
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11
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1
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Records Committee review for rare bird sighting of California Gull at Oak Grove Beach at Saylorville Reservoir, 1990
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Administrative records Clippings (information artifacts) Field notes
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Bird watching Ornithology Ornithology--Societies, etc
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1990-09-08
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1993-07-17
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Rare birds documentation form
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Records Committee review for a California Gull at Oak Grove Beach at Saylorville Reservoir in Polk County, IA on September 8, 1990. Includes a record review document with votes and the article California Gull at Saylorville Reservoir in Iowa Bird Life 61:20 by Stephen Dinsmore reviewed by the committee.
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Dinsmore, Stephen J.
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California Gull
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Oak Grove Recreation Area
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[...] Oak Grove Beach Recreation Area at Saylorville Reservoir, Polk County.
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The article by Stephen J. Dinsmore forms the basis of this record. | Elimination of similar species: [...]The bird was similar in size to the largest Ring-billed Gulls, but slightly larger than others. I approached closer and noted that, when compared to a Ring-billed Gull, the bird had duller yellow legs, a stouter bill with black and red spots near the tip of the lower mandible, and a darker gray mantle. [...] The bird was slightly larger than most of the Ring-billed Gulls, although one or two of the biggest Ring-billed Gulls were as large as the bird I was studying. Proportionately, the bird was heavier and larger-headed than a Ring-billed Gull. [...] I estimated the mantle color to be about midway between those of Ring-billed Gull and a Lesser Black-backed Gull. [...] The bill was heavier than the bill of a Ring-billed Gull and had a distinct gonys. The legs were pale gray-green, unlike the bright yellow legs of a Ring-billed Gull. Leg length appeared similar to a Ring-billed Gull. | The original documentation form event lasted from 07:45:00/09:27:00.
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Iowa Ornithologists' Union | MS 166
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11
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1
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Records Committee review for rare bird sighting of California Gull at Credit Island, 1989
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Administrative records Clippings (information artifacts) Correspondence Field notes
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Bird watching Ornithology Ornithology--Societies, etc
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1989-11-23
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1993-07-21
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Rare birds documentation form
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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.
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Augustine, Louise
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California Gull
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Credit Island
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Credit Island - Davenport, Iowa - Scott County
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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 -
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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.
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Iowa Ornithologists' Union | MS 166
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11
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1
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