Records Committee review for rare bird sighting for Great-tailed Grackle at Riverton Area, 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 Great-tailed Grackle at Riverton Area in Fremont County, IA on May 15, 1984. Includes a record review document with votes and a documentation form submitted to the committee.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Great-tailed Grackle
|
Riverton Wildlife Management Area
|
Riverton A, near headquarters, Fremont Co., IA
|
open area with a few trees near water area
|
The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Another observer was Ross Silcock. | Elimination of similar species: The large size, long tail and voice convince me it was not a Common Grackle. Unfortunately, we were not able to study the bird for more than a minute. | The original documentation form event lasted from 06:30:00/06:32:00.
|
Iowa Ornithologists' Union | MS 166
|
14
|
9
|
Records Committee review for rare bird sighting for Great-tailed Grackle at Ames, 1987
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1987-12-19
|
1993-09-07
|
Rare birds documentation form
|
Records Committee review for a Great-tailed Grackle at Ames in Story County, IA on December 19, 1987. Includes a record review document with votes and two documentation forms submitted to the committee.
|
Niyo, Kayleen
|
Great-tailed Grackle
|
Ames
|
Max Bailey Farm on Dayton Rd. N.E. of Ames
|
Spruce Windbreak
|
The documentation form by Kay Niyo is the earliest and the one that forms the basis of this record. Another documentation form by John Richard was submitted later. Another observer was Judy Shearer. | Elimination of similar species: Common grackle - this bird was much larger with a much longer tail. Common crow - this bird was not quite as large, had a much longer tail than a crow, bill was long & grackle shaped, not as a crow, & body stance was like a grackle not a crow. Ani - bill and body shape & carriage was grackle-like. | The original documentation form event occurred around 16:00:00.
|
Iowa Ornithologists' Union | MS 166
|
14
|
9
|
Records Committee review for rare bird sighting for Great Gray Owl south of Saint Lucas in 1996
|
Administrative records Correspondence Field notes Photographs
|
Birds--Identification Photography of birds Rare birds
|
1996-03-10
|
2000-11-22
|
Manuscript, graphic, and printed material
|
Records Committee review for a Great Gray Owl south of Saint Lucas in Fayette County, IA on March 10, 1996. Includes a record review document with votes and photographs from Don and Jean Boyer in a letter from Dave Oestmann to Dennis Carter on June 5, 1996.
|
Iowa Ornithologists' Union Records Committee
|
Great Gray Owl
|
Saint Lucas
|
|
|
|
Iowa Ornithologists' Union | MS 166
|
12
|
18
|
Records Committee review for rare bird sighting for Great Gray Owl north of Sigourney in 1921
|
Administrative records Clippings (information artifacts) Field notes
|
Birds--Identification Rare birds Trapping
|
1933-12-01
|
1993-08-26
|
Manuscript, graphic, and printed material
|
Records Committee review for a Great Gray Owl north of Sigourney in Keokuk County, IA during February 1921. Includes a record review document with votes, the original sighting record found in the publication Revised List of Birds of Iowa by Philip A. DuMont seen by E.D. Nauman, and referenced by two other publications.
|
Iowa Ornithologists' Union Records Committee
|
Great Gray Owl
|
Sigourney
|
|
|
|
Iowa Ornithologists' Union | MS 166
|
12
|
18
|
Records Committee review for rare bird sighting of Great Gray Owl near Quarry, 1959
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1959-05-12
|
1993-08-26
|
Rare birds documentation form
|
Records Committee review for a Great Gray Owl near Quarry in Marshall County, IA on May 12, 1959. Includes a record review document with votes and a documentation article submitted to the committee.
|
Mitchem, Lucile
|
Great Gray Owl
|
Quarry
|
[...] gravel road that follows the Iowa River near the small town of Quarry.
|
|
The documentation article by Lucile E. Mitchem forms the basis of this record. Other observer includes her daughter. | Elimination of similar species: [...] I was well acquainted with the Barred Owl, the only other owl an amateur might confuse with the larger Great Gray Owl. | The original documentation form event lasted from 05:30:00/05:40:00.
|
Iowa Ornithologists' Union | MS 166
|
12
|
18
|
Records Committee review for rare bird sighting for Great Gray Owl near Decorah in 1974
|
Administrative records Clippings (information artifacts) Field notes
|
Birds--Identification Rare birds
|
1974-09-01
|
1993-08-26
|
Manuscript, graphic, and printed material
|
Records Committee review for a Great Gray Owl near Decorah in Winneshiek County, IA on February 15, 1974. Includes a record review document with votes and the original sighting record found in the publication Great Gray Owl in N.E. Iowa in Iowa Bird Life 44:75 by Eric O. Berg.
|
Iowa Ornithologists' Union Records Committee
|
Great Gray Owl
|
Decorah
|
|
|
|
Iowa Ornithologists' Union | MS 166
|
12
|
18
|
Records Committee review for rare bird sighting for Great Gray Owl at Van Buren County around 1894
|
Administrative records Clippings (information artifacts) Field notes
|
Birds--Identification Rare birds Hunting
|
1907-03-01
|
1993-08-26
|
Manuscript, graphic, and printed material
|
Records Committee review for a Great Gray Owl at Van Buren County, IA around 1894. Includes a record review document with votes, the original sighting record found in the publication Birds of Iowa by Rudolph Martin Anderson seen by David L. Savage, and referenced by three other publications.
|
Iowa Ornithologists' Union Records Committee
|
Great Gray Owl
|
Van Buren County
|
|
|
|
Iowa Ornithologists' Union | MS 166
|
12
|
18
|
Records Committee review for rare bird sighting for Great Gray Owl at Oskaloosa before 1872
|
Administrative records Clippings (information artifacts) Field notes
|
Birds--Identification Rare birds Hunting
|
1873-01-01
|
1993-08-26
|
Manuscript, graphic, and printed material
|
Records Committee review for a Great Gray Owl at Oskaloosa in Mahaska County, IA before 1872. Includes a record review document with votes, the original sighting record found in the publication Notes on the Birds of Southern Iowa in the Proceedings of the Boston Society of Natural History 15:229-243 by T. Martin Trippe, and referenced by three other publications.
|
Iowa Ornithologists' Union Records Committee
|
Great Gray Owl
|
Oskaloosa
|
|
|
|
Iowa Ornithologists' Union | MS 166
|
12
|
18
|
Records Committee review for rare bird sighting for Great Gray Owl at Hillsboro in 1860
|
Administrative records Clippings (information artifacts) Field notes
|
Birds--Identification Rare birds Birds--Collection and preservation
|
1907-03-01
|
1993-08-26
|
Manuscript, graphic, and printed material
|
Records Committee review for a Great Gray Owl at Hillsboro in Henry County, IA in 1860. Includes a record review document with votes, the original sighting record found in the publication Birds of Iowa by Rudolph Martin Anderson seen by Walter G. Savage, and referenced by two other publications.
|
Iowa Ornithologists' Union Records Committee
|
Great Gray Owl
|
Hillsboro
|
|
|
|
Iowa Ornithologists' Union | MS 166
|
12
|
18
|
Records Committee review for rare bird sighting for Great Gray Owl at Des Moines in 1996
|
Administrative records Clippings (information artifacts) Correspondence Field notes Photographs
|
Birds--Identification Rare birds Birds--Collection and preservation Wildlife rehabilitation
|
1996-03-01
|
2000-11-24
|
Manuscript, graphic, and printed material
|
Records Committee review for a Great Gray Owl at Des Moines in Polk County, IA on March 1, 1996. Includes a record review document with votes, two photographs of the specimen at Iowa State University by Thomas Kent, a note from Jim Dinsmore to Tom Kent, and an article in Iowa Bird Life.
|
Iowa Ornithologists' Union Records Committee
|
Great Gray Owl
|
Des Moines
|
|
|
|
Iowa Ornithologists' Union | MS 166
|
12
|
18
|
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 Claybanks Forest, 1997
|
Administrative records Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1997-02-08
|
2000-11-24
|
Rare birds documentation form
|
Records Committee review for a Great Gray Owl at Claybanks Forest in Cerro Gordo County, IA on February 8, 1997. Includes a record review document with votes, a photograph, a photocopy of a photograph, and four documentation forms submitted to the committee.
|
Allen, Pam Allen, Reid I.
|
Great Gray Owl
|
Claybanks Forest
|
Cerro Gordo County, 1/4 mile west of the intersection of Wren and 225th Street; on 225th St.
|
|
The documentation form by Pam and Reid Allen forms the basis of this record. Other documentation forms by Carolyn Fischer, Jim Fuller, and Stephen J. Dinsmore were submitted. Other observers include Mark Proescholdt, Beth Proescholdt, James J. Dinsmore, Dick Tetrault, Chris Caster, Dale Fye, Diane Porter, Ron Muilenberg, Gerald White, Jan Walter, Rita Pedelty, Tom Fischer, and many unidentified observers. | Elimination of similar species: There really is no other owl except a Barred Owl which could be confused with this bird. The yellow eyes of the Great Gray Owl eliminated the possibility of a Barred Owl which has dark eyes. Also, size would eliminate the Barred Owl. The Great Gray Owl looked almost twice as large as a Barred Owl. | The original documentation form event lasted from 14:52:00/16:09:00.
|
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 Great Cormorant at Rice Lake, 1996
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-09-08
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Great Cormorant at Rice Lake in Worth County, IA on September 8, 1996. Includes a record review document with votes and two documentation forms submitted to the committee.
|
Bangma, Jim
|
Great Cormorant
|
Rice Lake
|
Rice Lake
|
Lake
|
The documentation form by Jim Bangma is the earliest and the one that forms the basis of this record. Another documentation form by Ann Johnson was submitted later. | Elimination of similar species: Double-crested is smaller, with a much thinner neck. There is a noticeable transition from the thin neck to the larger head. In this bird, there was no noticeable widening from the neck to the head. Additionally, Double-crested has a proportionally much smaller and weaker bill. Double-crested's forehead slopes more evenly into the bill. While these differences may be difficult to see in single birds without comparative experience, in direct comparison they are significant. Additionally, the orange facial skin combines with the gular pouch to accentuate the overall orange color of the face. Other extralimital black cormorants can be ruled out on size alone, additionally, most have thinner necks and smaller bills than even Double-crested. | The original documentation form event lasted from 11:00:00/11:02:00.
|
Iowa Ornithologists' Union | MS 166
|
7
|
13
|
Records Committee review for rare bird sighting for Great Black-backed Gull near the Keokuk Wastewater Treatment Plant, 1993
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1993-12-25
|
1995-07-08
|
Rare birds documentation form
|
Records Committee review for a Great Black-backed near the Keokuk Wastewater Treatment Plant in Lee County, IA on December 25, 1993. Includes a record review document with votes and a documentation form submitted to the committee.
|
Cecil, Robert I.
|
Great Black-backed Gull
|
Keokuk Wastewater Plant
|
Near Sewage treatment plant, Mississippi River, Keokuk, Lee Co. IA
|
River
|
The documentation form by Bob Cecil is the only one submitted and forms the basis of this record. Other observers include John Cecil. | Elimination of similar species: All other gulls eliminated based upon size alone. | The original documentation form event lasted from 14:00:00/14:30:00 and around 16:00:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
8
|
Records Committee review for rare bird sighting of Great Black-backed Gull near the Ben Butterworth Parkway in Moline, 1986
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1986-12-21
|
1993-09-07
|
Rare birds documentation form
|
Records Committee review for a Great Black-backed Gull near the Ben Butterworth Parkway in Moline in Rock Island County, IL on December 21, 1986. Includes a record review document with votes, summary of review, and six documentations submitted to the committee.
|
Sandvick, Gil
|
Great Black-backed Gull
|
Ben Butterworth Parkway
|
Ben Butterworth Parkway Miss. River - Il. side
|
|
The documentation by Gil Sandvick is the earliest and the one that forms the basis of this record. Other documentations by Thomas H. Kent, James Fuller, Carl Bendorf, Mary Lou Petersen and Peter C. Petersen, and Francis Moore were submitted later. Other observers include Doris Sandvick, Carol Rogers, Tim Dwyer, Al Hahn, Cal Knight, Ann Barker, Betty Hunt, Kelly McKay, Lewis Blevins, Brian Blevins, Corey Blevins, and other unidentified observers. | Elimination of similar species: [...] It was standing with approx eight Herring gulls. "It really stood out." [...] 1. Using Robbins + Peterson books confirming Herring. Great Black-Backed and Lesser Black Gull we eliminated by size to 24"-26". 2. His overall appearance including bill, head and body seemed much larger and fuller than the Herring gulls. | The original documentation form event lasted from 15:35:00/16:05:00 on December 21, 1986 and 10:00:00/11:00:00 on December 23, 1986.
|
Iowa Ornithologists' Union | MS 166
|
11
|
8
|
Records Committee review for rare bird sighting of Great Black-backed Gull near Bettendorf, 1993
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1993-02-28
|
1995-07-08
|
Rare birds documentation form
|
Records Committee review for a Great Black-backed Gull near Bettendorf in Scott County, IA on February 28, 1993. Includes a record review document with votes and a documentation form submitted to the committee.
|
Fuller, James L
|
Great Black-backed Gull
|
Ben Butterworth Parkway
|
Mississippi River between Bettendorf, Iowa and Moline, Illinois (Scott Co.).
|
|
The documentation form by Jim Fuller is the only one submitted and forms the basis of this record. | Elimination of similar species: [...] In the middle of the group was a gull that was darker than any of the other birds, even the immature Herring Gulls. [...] In general size, this bird appeared almost twice the size of the Ring-billed Gulls, and considerably larger than the Herring Gulls, maybe 25%. It also had a massive bill compared to either of those species. [...] The legs were a dull gray-pink, and they were noticeably thicker than those of the Herring or Ring-billed Gulls. | The original documentation form event lasted from 11:05:00/11:35:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
8
|
Records Committee review for rare bird sighting of a Great Black-backed Gull at Whitebreast Point in Red Rock Reservoir, 1994
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1994-12-17
|
1996-04-25
|
Rare birds documentation form
|
Records Committee review for a Great Black-backed Gull at Whitebreast Point in Red Rock Reservoir in Marion County, IA on December 17, 1994. Includes a record review document with votes and a documentation form submitted to the committee.
|
Johnson, Ann
|
Great Black-backed Gull
|
White Breast Creek
|
Whitebreast Point, Red Rock Reservoir, Marion Co., IA
|
Flying over open water and ice
|
The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. Another observer includes Tim Schantz. | Elimination of similar species: Large size (larger than Herring) eliminated most others. White head and black and white checkering eliminate Lesser Black-backed and Herring. | The original documentation form event lasted from 10:40:00/10:45:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
8
|
Records Committee review for rare bird sighting of Great Black-backed Gull at Triboji Beach at West Okoboji Lake, 1982
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1982-07-14
|
1993-09-01
|
Rare birds documentation form
|
Records Committee review for a Great Black-backed Gull at Triboji Beach at West Okoboji Lake in Dickinson County, IA on July 14, 1982. Includes a record review document with votes, summary of review, an article of Iowa Bird Life, and two documentation forms submitted to the committee.
|
Hinshaw, Linda
|
Great Black-backed Gull
|
Triboji Beach
|
N. end of West Okoboji Lake in an area called Triboji Beach on the end of the dock of Earl Rose 1/2 block east of Lee's Resort. Saw same bird fly out into the water.
|
Large fresh water "blue lake" with sandy shore. Shoreline all developed in housing + resorts.
|
The documentation form by Linda Hinshaw forms the basis of this record. Another documentation form by Douglas Harr was submitted. Other observers include Earl Rose, Fleta Rose, Robert Hinshaw, Gwen Hedin, Curt Hedin, Loraine Wallace, Pearle Osher, LaVonne Foote, and Nina Loehr. | Elimination of similar species: It was too large to be a lesser Black Backed Gull + legs were flesh colored, not yellow. Also much too large to be the Western Gull listed in the Golden Field Guide - 'Birds of North America." | The original documentation form event lasted from 18:30:00/18:50:00 and 19:30:00/20:15:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
8
|
Records Committee review for rare bird sighting of Great Black-backed Gull at Saylorville Reservoir, 1986
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1986-11-30
|
1993-09-07
|
Rare birds documentation form
|
Records Committee review for a Great Black-backed Gull at Saylorville Reservoir in Polk County, IA on November 30, 1986. Includes a record review document with votes, a summary of the review, and two documentation forms submitted to the committee.
|
Dinsmore, Stephen J.
|
Great Black-backed Gull
|
Saylorville Lake
|
Saylorville Reservoir, Polk Co. (near visitors center)
|
large reservoir
|
The documentation form by Steve Dinsmore is the earliest and the one that forms the basis of this record. Another documentation form by Paul Martsching was submitted later. | Elimination of similar species: Second winter Herring Gull eliminated by size, bill size, lack of a gray mantle, lack of streaking on the head and underparts, lack of a window on the upperwing, by the all white tail with a dark band at the tip, and by the very dark underside of the primaries. Second winter Lesser Black-backed Gull eliminated by smaller size, browner uppertail, and heavily streaked head and underparts. | The original documentation form event lasted from approximately 16:00:00/16:15:00 on November 30, 1986 and 15:55:00/16:08:00 on December 1, 1986.
|
Iowa Ornithologists' Union | MS 166
|
10
|
21
|
Records Committee review for rare bird sighting of Great Black-backed Gull at Saylorville Reservoir, 1987
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1987-04-30
|
1993-09-07
|
Rare birds documentation form
|
Records Committee review for a Great Black-backed Gull at Saylorville Reservoir in Polk County, IA on April 30, 1987. Includes a record review document with votes and a documentation form submitted to the committee.
|
Myers, Robert K.
|
Great Black-backed Gull
|
Saylorville Lake
|
Saylorville Reservoir - Polk Co.
|
Large, man-made lake - sandy beaches
|
The documentation form by Robert K. Myers is the only one submitted and forms the basis of this record. Other observers include Eugene Armstrong and Eloise Armstrong. | Elimination of similar species: The gull was too big and had too large of a bill for herring gull. The checkered back + very contrasty head + upper breast with lower are not consistent with herring. Basically size of bird + its bill eliminated most everything. | The original documentation form event lasted from 18:30:00/18:45:00.
|
Iowa Ornithologists' Union | MS 166
|
10
|
21
|
Records Committee review for rare bird sighting of Great Black-backed Gull at Sandpiper Beach at Saylorville Reservoir, 1988
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1988-12-10
|
1993-08-04
|
Rare birds documentation form
|
Records Committee review for a Great Black-backed Gull at Sandpiper Beach at Saylorville Reservoir in Polk County, IA on December 10, 1988. Includes a record review document with votes and a documentation form submitted to the committee.
|
Engebretsen, Bery
|
Great Black-backed Gull
|
Sandpiper Recreation Area
|
Saylorville
|
Specific: Big end of Saylorville Specific: off Sandpiper Beach, half in ice, half open
|
The documentation form by Bery Engebretsen is the only one submitted and forms the basis of this record. Another observer includes Eugene Armstrong. | Elimination of similar species: Larger than Herring gull would seem to eliminate Lesser BB, also, only one dark secondary band on wing white head + large size unlike immature Herring Gull. | The original documentation form event lasted from approximately 11:00:00/11:15:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
8
|
Records Committee review for rare bird sighting of Great Black-backed Gull at Sandpiper Beach at Saylorville Reservoir, 1992
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1992-03-07
|
1994-10-18
|
Rare birds documentation form
|
Records Committee review for a Great Black-backed Gull at Sandpiper Beach at Saylorville Lake in Polk County, IA on March 7, 1992. Includes a record review document with votes, an article in Iowa Bird Life, and a documentation form submitted to the committee.
|
Sinclair, Jim
|
Great Black-backed Gull
|
Sandpiper Recreation Area
|
Sandpiper Beach ,Saylorville Lake
|
Beach
|
The documentation form by Jim Sinclair is the only one submitted and forms the basis of this record. | Elimination of similar species: The only gull which approaches the Gr. Bl-backed in size is the Glaucous Gull - this species would not have a dark tail band or dark secondaries or an all dark bill | The original documentation form event occurred around 11:30:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
8
|
Records Committee review for rare bird sighting of Great Black-backed Gull at Red Rock Reservoir, 1986
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1986-12-03
|
1993-09-07
|
Rare birds documentation form
|
Records Committee review for a Great Black-backed Gull at Red Rock Reservoir in Marion County, IA on December 3, 1986. Includes a record review document with votes and a documentation submitted to the committee.
|
Petersen, Peter C.
|
Great Black-backed Gull
|
Lake Red Rock
|
Seen from Hwy 14 bridge across Red Rock Res.
|
|
The documentation by Peter C. Petersen is the only one submitted and forms the basis of this record. Another observer includes Gil Sandvick. | Elimination of similar species: [...] Herring Gull eliminated by large size, small amount of dark brown on tail, light head + rump. Also lacked light area on inner primaries noted in the nearby Herring Gull. | The original documentation form event lasted from 14:35:00/14:35:30.
|
Iowa Ornithologists' Union | MS 166
|
11
|
8
|
Records Committee review for rare bird sighting for Great Black-backed Gull east of Lock and Dam 15 in Davenport, 1988
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1988-12-18
|
1993-08-04
|
Rare birds documentation form
|
Records Committee review for a Great Black-backed Gull at Lock and Dam 15 in Davenport in Scott County, IA on December 18, 1988. Includes a record review document with votes and two documentation forms submitted to the committee.
|
Petersen, Peter C.
|
Great Black-backed Gull
|
Lock and Dam 15
|
Missisippi River just E (upstream) of Lock 15 in Davenport
|
river ice
|
The documentation form by Peter C. Petersen is the earliest and the one that forms the basis of this record. Another documentation form by Jim Fuller was submitted later. Other observers include Mary Lou Petersen, Walter Zuurdeeg, Ann Barker, and Don Moeller. | Elimination of similar species: Lesser Black-backed Gull - this bird too large, mantle color too dark, legs color was pink, not yellow. | The original documentation form event lasted from 11:40:00/11:50:00 and 13:00:00/13:05:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
8
|