Christmas Bird Count 1996
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Field notes
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Birds--Identification Ornithology Rare birds
|
1996-12-22
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1996-12-23
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Manuscript, graphic, and printed material
|
Field notes from a Christmas Bird Count with details on the sighting of Thayer's Gull's at Lock and Dam 13, 14, 15 near Davenport and Clinton on December 22 and 23, 1996. Includes observers Pete Petersen, Walter Zuurdeeg and others.
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McKay, Kelly
|
Thayer's Gull Chukar Greater Scaup
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Clinton Davenport Lock and Dam 14 Lock and Dam 15 Lock and Dam 13
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Iowa Ornithologists' Union | MS 166
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34
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35
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Details for rare bird sighting, Jim Fuller, 1992
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Field notes
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Birds--Identification Ornithology Rare birds
|
1992-01-05
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N/A
|
Manuscript, graphic, and printed material
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Field report for sighting of a Lesser Black-backed Gull at Lock and Dam 14 and at Moline Riverfront on January 5, 1992, contributed by Jim Fuller. Other observers include Jane Fuller and Carol Thompson.
|
Fuller, James L
|
Lesser Black-backed Gull
|
Lock and Dam 14 Moline
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|
|
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Iowa Ornithologists' Union | MS 166
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34
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36
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Rare bird documentation form for Lesser Black-backed Gull at Mississippi River between Bettendorf, IA and Moline, IL, 1992
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Field notes
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Birds--Identification Ornithology Rare birds
|
1992-01-11
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N/A
|
Rare birds documentation form
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Rare bird documentation form for a Lesser Black-backed Gull at Mississippi River between Bettendorf in Scott County, IA and Moline in Rock Island County, IL on January 11, 1992.
|
Petersen, Peter C.
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Lesser Black-backed Gull
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Bettendorf Moline
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Miss. R. between Bettendorf + Moline, Scott + R.I. Cos.
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river channel
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. | Elimination of similar species: Great Black-backed - back not black, too small. Slaty-backed - a bit small, trailing edge of wing with narrow, not wide, white edge. Western - a bit small bill not larger + heavier than the several nearby Herrings. | The original documentation form event lasted from 08:50:00/09:00:00.
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Iowa Ornithologists' Union | MS 166
|
34
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36
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Rare bird documentation form for Lesser Black-backed Gull at Lock and Dam 15, 1992
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Field notes
|
Birds--Identification Ornithology Rare birds
|
1992-01-17
|
N/A
|
Rare birds documentation form
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Rare bird documentation form for a Lesser Black-backed Gull at Lock and Dam 15 in Davenport in Scott County, IA on January 17, 1992.
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Kent, Thomas H. (Thomas Hugh), 1934-
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Lesser Black-backed Gull
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Lock and Dam 15
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Above Lock + Dam 15, Davenport, IA
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Frozen river
|
The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Other observers include Jim Fuller. | Elimination of similar species: Size and leg color eliminate other dark mantled gulls. | The original documentation form event lasted from 13:30:00/14:30:00.
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Iowa Ornithologists' Union | MS 166
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34
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36
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Rare bird documentation form for Lesser Black-backed Gull at Mississippi River between Bettendorf, IA and Moline, IL, 1992
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Field notes
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Birds--Identification Ornithology Rare birds
|
1992-01-31
|
1992-02-07
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Rare birds documentation form
|
Rare bird documentation form for a Lesser Black-backed Gull at Mississippi River between Bettendorf in Scott County, IA and Moline in Rock Island County, IL on January 31, 1992 and February 1, 1992.
|
Fuller, James L
|
Lesser Black-backed Gull
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Bettendorf Moline
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Mississippi River between Moline, Illinois and Bettendorf, Iowa.
|
|
The documentation form by Jim Fuller is the only one submitted and forms the basis of this record. Other observers include Charles Fuller and Jane Fuller. | Elimination of similar species: The only other dark mantled gull with yellow legs is Yellow-footed Gull, which has never been seen outside of the extreme southwestern part of the country. Yellow-footed gull is also larger than the Herring gull, but this bird was smaller in general size. | The original documentation form event lasted from 14:35:00/14:45:00 on January 31, 1992 and 09:50:00/10:00:00 on February 1, 1992.
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Iowa Ornithologists' Union | MS 166
|
34
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36
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Rare bird documentation form for Lesser Black-backed Gull on the Mississippi River between Bettendorf, IA and Moline, IL, 1992
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Field notes
|
Birds--Identification Ornithology Rare birds
|
1992-02-02
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Lesser Black-backed Gull on the Mississippi River between Bettendorf in Scott County, IA and Moline in Rock Island County, IL on February 2, 1992.
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Petersen, Peter C.
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Lesser Black-backed Gull
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Bettendorf Moline
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Miss. River between Bettendorf, Scott Co., IA + Moline, R.I. Co., IL.
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Main channel of Miss. River
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Ann Johnson and Gerald White. | Elimination of similar species: Great-Black-backed- seen with one, much smaller, mantle not black. Slaty-backed. This bird smaller than Herrings, legs were yellow. | The original documentation form event lasted from 13:30:00/13:35:00.
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Iowa Ornithologists' Union | MS 166
|
34
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36
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Rare bird documentation form for Lesser Black-backed Gull at Greencastle Road at Coralville Reservoir, 1993
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Field notes
|
Birds--Identification Ornithology Rare birds
|
1993-12-19
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Lesser Black-backed Gull at Greencastle Road at Coralville Reservoir in Johnson County, IA on December 19, 1993.
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Fuller, James L
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Lesser Black-backed Gull
|
Coralville Lake
|
East of the north end of the Greencastle Road at the Coralville Reservoir (Johnson County).
|
Shallow water and mudflats.
|
The documentation form by Jim Fuller is the only one submitted and forms the basis of this record. Other observers include John McClure, Chris Edwards, and Jonnie Ellsworth. | Elimination of similar species: All other dark mantled gulls have a larger size. They also have pink legs, with the exception of Yellow-footed Gull, which has never been known to wander from Baja and Southern California. Yellow-footed gull is also considerably larger. No one disagreed with identification. | The original documentation form event lasted from 12:55:00/13:15:00.
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Iowa Ornithologists' Union | MS 166
|
34
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36
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Rare bird documentation form for Lesser Black-backed Gull in the Cedar River at Cedar Rapids, 1993
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Field notes
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Birds--Identification Ornithology Rare birds
|
1993-12-18
|
1994-01-06
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Rare birds documentation form
|
Rare bird documentation form for a Lesser Black-backed Gull in the Cedar River at Cedar Rapids in Linn County, IA on December 18, 1993.
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Wickham, Peter P.
|
Lesser Black-backed Gull
|
Cedar Rapids
|
Cedar River, on sandbar across from Cargill plant, Cedar Rapids, IA
|
Standing, walking around on sandbar
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The documentation form by Peter Wickham is the only one submitted and forms the basis of this record. | Elimination of similar species: The dark mantle, yet whitish head, neck, and underparts identified it as an adult gull, and immediately eliminated Herring, Ring-billed and other gray or whitish-backed gulls. It was too small for Great Black-backed Gull, which has flesh-colored legs anyway, or Slaty-backed Gull, which has pinkish legs. The mantle wasn't truly black, as a Great Black-backed mantle would be. | The original documentation form event lasted from 14:15:00/14:25:00.
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Iowa Ornithologists' Union | MS 166
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34
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36
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Rare bird documentation form for Lesser Black-backed Gull at Coralville Reservoir, 1993
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Field notes
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Birds--Identification Ornithology Rare birds
|
1993-12-18
|
1993-12-19
|
Rare birds documentation form
|
Rare bird documentation form for a Lesser Black-backed Gull at Coralville Reservoir in Johnson County, IA on December 18, 1993.
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Bendorf, Carl J.
|
Lesser Black-backed Gull
|
Coralville Lake
|
Coralville Reservoir, Johnson County, Iowa
|
upper reaches of the Coralville Reservoir
|
The documentation form by Carl Bendorf is the only one submitted and forms the basis of this record. Other observers include Lanny Haldy, Randy Graesser, Dan Ray, Angela Ray, Kathleen Kuenstling, Randall Pinkston, Thomas Kent, Jim Fuller, and others. | Elimination of similar species: Of about 500 gulls total, nearly 90% were adult Ring-Billed Gulls and the rest were mostly winter adult and a few subadult Herring Gulls. [...] An adult gull in between the size of adjacent Ring-billed and Herring Gulls. It was noticeable larger than the Ring-bills; not too much smaller than the Herrings. It differed from the Herrings in being a little less barrel chested and a little slimmer, more horizontal in posture. | The original documentation form event occurred for 45 minutes during two sessions.
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Iowa Ornithologists' Union | MS 166
|
34
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36
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Winter Birds 97-98
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1997-12-01
|
1998-02-25
|
Manuscript, graphic, and printed material
|
List of birds and locations contributed by Aaron Brees. Includes a note to Thomas H. Kent.
|
Brees, Aaron
|
Thayer's Gull
|
Lake Red Rock
|
|
|
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Iowa Ornithologists' Union | MS 166
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34
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35
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Rare bird documentation form for Thayer's Gull south of Muscatine, 1997
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1997-12-28
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Thayer's Gull south of Muscatine in Muscatine County, IA on December 28, 1997.
|
McKay, Kelly
|
Thayer's Gull
|
Muscatine
|
just south of Muscatine, IA., Muscatine county standing on ice shelves.
|
|
The documentation form by Kelly J. McKay is the only one submitted and forms the basis of this record. Other observers include Gerry White. | Elimination of similar species: The bird was about the size of a herring gull (slightly smaller), but much paler.
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Iowa Ornithologists' Union | MS 166
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34
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35
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Rare bird documentation form for Thayer's Gull at Spirit Lake, 1997
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1997-11-09
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Thayer's Gull at Spirit Lake in Dickinson County, IA on November 9, 1997.
|
Schoenewe, Lee A.
|
Thayer's Gull
|
Spirit Lake
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South Shore of Spirit Lake, Dickinson Co.
|
Natural lakeshore
|
The documentation form by Lee A. Schoenewe is the only one submitted and forms the basis of this record. Other observers include Eugene Armstrong, and Eloise Armstrong. | Elimination of similar species: Herring Gull - Lack of dark color in primaries + tail; Glaucous-size; Iceland - overall gray-brown tinge
|
Iowa Ornithologists' Union | MS 166
|
34
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35
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Rare bird documentation form for Thayer's Gull at Lock and Dam 15 in Davenport, 1996
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1996-11-14
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Thayer's Gull at Lock and Dam 15 in Davenport in Scott County, IA on November 14, 1996.
|
Fuller, James L
|
Thayer's Gull
|
Lock and Dam 15
|
Lock & Dam #15 of Mississippi River, Davenport (Scott County)
|
|
The documentation form by Jim Fuller is the only one submitted and forms the basis of this record. | Elimination of similar species: The amount of black and white in the outer primary tips (both upper and underwing) is much less than would be expected in Ring-billed or Herring. Ring-billed is smaller with a dark ring on bill of adult. Although a few Herrings have somewhat bright pink legs, most are a dull pink. An Iceland adult should have a lighter mantle and upperwing, and less gray (not black) on the outer primary tips. | The original documentation form event lasted from 13:50:00/14:15:00.
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Iowa Ornithologists' Union | MS 166
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34
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35
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Records Committee review for rare bird sighting for Iceland Gull at Lock and Dam 15 near Davenport, 1990
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1990-03-09
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review for an Iceland Gull at Lock and Dam 15 near Davenport in Scott County, IA on March 9, 1990. Includes a record review document with votes and a documentation form submitted to the committee.
|
Petersen, Peter C.
|
Iceland Gull
|
Lock and Dam 15
|
Lock 15 - just upstream - R.I. Co. Il. + Scott Co. IA.
|
Ice cake floating on Miss. R. - along shore just upstream from lock - urban area around River.
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. | Elimination of similar species: Glaucous Gull - bird was too small, bill entirely black. Thayer's Gull - uniform color on entire wing. | The original documentation form event lasted from 11:00:00/11:10:00.
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Iowa Ornithologists' Union | MS 166
|
11
|
4
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Rare bird documentation form for Thayer's Gull at Black Hawk Lake, 1996
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1996-02-11
|
1996-02-13
|
Rare birds documentation form
|
Rare bird documentation form for a Thayer's Gull at Black Hawk Lake in Sac County, IA on February 11, 1996.
|
Thelen, Ed
|
Thayer's Gull
|
Black Hawk Lake
|
Black Hawk Lake Sac County
|
Natural Lake - near open water from aerator
|
The documentation form by Ed Thelen is the only one submitted and forms the basis of this record. Other observers include Rob Thelen and Peter Ernzen. | Elimination of similar species: Herring Gull has dark lesser coverts and dark feathers under the wing tips. More distinct tail band + larger bill. | The original documentation form event lasted from 09:30:00/10:00:00.
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Iowa Ornithologists' Union | MS 166
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34
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35
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Rare bird documentation form for Thayer's Gull on the Mississippi River at Davenport, 1996
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1996-01-07
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Thayer's Gull on the Mississippi River at Davenport in Scott County, IA on January 7, 1996.
|
Edwards, Chris
|
Thayer's Gull
|
Davenport
|
Mississippi River, Davenport, Scott Co.
|
River.
|
The documentation form by Chris Edwards is the only one submitted and forms the basis of this record. Other observers include Curt Nelson. | Elimination of similar species: Herring Gull has black or dark brown primary tips and secondaries on upperside, dark gray primary tips on underside, whitish head, larger bill. Iceland Gull has white primary tips. | The original documentation form event lasted from 13:45:00/15:00:00.
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Iowa Ornithologists' Union | MS 166
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34
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35
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Rare bird documentation form for Thayer's Gull at Lock and Dam 15, 1995
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1995-12-17
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Thayer's Gull at Lock and Dam 15 in Scott County, IA on December 17, 1995.
|
Petersen, Peter C.
|
Thayer's Gull
|
Lock and Dam 15
|
Lock + Dam 15, seen from Iowa walking near Il. Shore mostly
|
Open river
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Walter Zuurdeeg, Mary Lou Petersen, and Kelly McKay. | Elimination of similar species: Herring Gull - heavier bill, very dark primary tips, no windows, tail darker with uneven white edge, secondaries dark from above, underwing much darker. Iceland Gull would show much lighter plumage overall, especially tail + primary tips. | The original documentation form event lasted from 12:05:00/12:10:00.
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Iowa Ornithologists' Union | MS 166
|
34
|
35
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Rare bird documentation form for Thayer's Gull at Red Rock Dam, 1995
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1995-01-01
|
1995-03-01
|
Rare birds documentation form
|
Rare bird documentation form for a Thayer's Gull at Red Rock Dam in Marion County, IA on January 1, 1995.
|
Johnson, Ann
|
Thayer's Gull
|
Red Rock Dam
|
Red Rock Dam, Marion Co., IA
|
gravel bar below dam
|
The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: Structure, darker mantle, dark eye, and gray primaries eliminate Herring Gull. Other gulls of intermediate size - Lesser Black-backed eliminated by relative gray of mantle, leg color, and primary color. California eliminated by leg color, primary color, and lack of black marking on bill. Iceland eliminated by dark mantle color | The original documentation form event lasted from 10:15:00/10:30:00.
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Iowa Ornithologists' Union | MS 166
|
34
|
35
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Rare bird documentation form for Thayer's Gull at Lock and Dam 14, 1995
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1995-01-03
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Thayer's Gull at Lock and Dam 14 in Scott County, IA on January 3, 1995.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Thayer's Gull
|
Lock and Dam 14
|
Lock and Dam 14, Scott Co., IA
|
Mississippi River dam
|
The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. | Elimination of similar species: I looked at many variable first-winter Herring Gulls today. All had more dark on wing tip and darker tail band. This bird was easy to pick out over and over again. | The original documentation form event lasted from 12:00:00/12:20:00.
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Iowa Ornithologists' Union | MS 166
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34
|
35
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Records Committee review for rare bird sighting of Iceland Gull at Lake Rathbun Dam, 1993
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1993-01-02
|
1995-07-08
|
Rare birds documentation form
|
Records Committee review for an Iceland Gull at Lake Rathbun Dam in Appanoose County, IA on January 2, 1993. Includes a record review document with votes and a documentation form submitted to the committee.
|
Cummins, Raymond L.
|
Iceland Gull
|
Rathbun Dam
|
Lake Rathbun Dam Appanoose Co.
|
The Iceland Gull was sighted on the ice above the dam feeding on a dead Canada goose. It was very protective of the food source chasing Crows away.
|
The documentation form by Ray Cummins is the only one submitted and forms the basis of this record. Other observers include Mary Montgomery and Dot Cornett. | Elimination of similar species: Thayer's Gull was eliminated because there was no dark in the primaries, no dark secondary band, and bill was not all dark. A first-winter Glaucous would have the coloration but there is no way this gulls bill or body size was big enough tobe [sic] a Gloucous [sic] Gull. | The original documentation form event lasted from 09:45:00/10:30:00.
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Iowa Ornithologists' Union | MS 166
|
11
|
4
|
Records Committee review for rare bird sighting of Iceland Gull at Saylorville Reservoir, 1992
|
Administrative records Clippings (information artifacts) Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1992-02-29
|
1994-10-18
|
Rare birds documentation form
|
Records Committee review for an Iceland Gull at Saylorville Reservoir in Polk County, IA on February 29, 1992. Includes a record review document with votes, two photographs, an article in Iowa Bird Life, and two documentation forms submitted to the committee.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Iceland Gull
|
Saylorville Lake
|
Saylorville Reservoir, Polk Co., IA
|
Near boat marina on shore and swimming with Ring-billed Gulls at wide part of reservoir.
|
The documentation form by Thomas H. Kent forms the basis of this record. Another documentation form by Bob Cecil was submitted. Other observers include John Cecil, Bob Myers, and Maridel Jackson. | Elimination of similar species: The small size, small head and bill, and all dark bill exclude Glaucous Gull. The lack of any dark in the wing or tail exclude Thayer's Gull. | The original documentation form event lasted from approximately 12:30:00/13:00:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
Records Committee review for rare bird sighting of Iceland Gull at Lock and Dam 14 near Le Claire, 1992
|
Administrative records Clippings (information artifacts) Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1992-01-04
|
1994-10-18
|
Rare birds documentation form
|
Records Committee review for two Iceland Gulls at Lock and Dam 14 near Le Claire in Scott County, IA on January 4, 1992. Includes a record review document with votes, two photographs, an article in Iowa Bird Life, and two documentation forms submitted to the committee.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Iceland Gull
|
Lock and Dam 14
|
Lock and Dam 14, Scott Co. Iowa
|
Mississippi River
|
The documentation form by Thomas H. Kent is the earliest and the one that forms the basis of this record. Another documentation form by Peter C. Petersen was submitted later. Other observers include Dan Dorrance and many unidentified observers. | Elimination of similar species: The overall size, head size, bill size, and lack of dipped-in-ink effect on the bill tip exclude Glaucous Gull. I excluded Thayer's Gull because both of these birds had very light primaries (not dark webs on the outer primaries). Neither had a secondary bar or in fact any distinctive marking on the wings. The lack of tail band in the first year bird also excludes Thayer's Gull. I was impressed by the paleness of the gray mantle in the second-year bird, but have too little experience with older Thayer's Gulls to make a comparison. | The original documentation form event lasted from 11:30:00/12:30:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
Records Committee review for rare bird sighting of Iceland Gull at Lock and Dam 14, 1992
|
Administrative records Clippings (information artifacts) Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1992-01-04
|
1994-10-18
|
Rare birds documentation form
|
Records Committee review for two Iceland Gulls at Lock and Dam 14 in Scott County, IA on January 4, 1992. Includes a record review document with votes, an Iowa Bird Life article, four photographs, and seven documentation forms submitted to the committee.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Iceland Gull
|
Lock and Dam 14
|
Lock and Dam 14, Scott Co. Iowa
|
Mississippi River
|
The documentation form by Thomas H. Kent is the earliest and the one that forms the basis of this record. Other documentation forms by Robert Cecil, James Fuller, Ann Johnson, Peter C. Petersen, Raymond Cummins, Randall Pinkston were submitted later. Other observers include Beth Brown, Dan Dorrance, Ross Silcock, Tanya Bray, Pete Wickham, Tim Schantz, and many unidentified observers. | Elimination of similar species: The overall size, head size, bill size, and lack of dipped-in-ink effect on the bill tip exclude Glaucous Gull. I excluded Thayer's Gull because both of these birds had very light primaries (not dark webs on the outer primaries). Neither had a secondary bar or in fact any distinctive marking on the wings. The lack of tail band in the first year bird also excludes Thayer's Gull. I was impressed by the paleness of the gray mantle in the second-year bird, but have too little experience with older Thayer's Gulls to make a comparison. | The original documentation form event lasted from 11:30:00/12:30:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
Records Committee review for rare bird sighting of Iceland Gull at Lock and Dam 14 near Le Claire, 1991
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1991-12-31
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review for an Iceland Gull at Lock and Dam 14 near Le Claire in Scott County, IA on December 31, 1991. Includes a record review document with votes, an article in Iowa Bird Life, and two documentation forms submitted to the committee.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Iceland Gull
|
Lock and Dam 14
|
Lock and Dam 14, Scott Co., IA
|
Mississippi River
|
The documentation form by Thomas H. Kent 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 Pete Wickham, John Daniel, Chuck Fuller, Bill Dawes, and John Rutenbeck. | Elimination of similar species: At first I thought the bird might be a Glaucous Gull, but the all black bill quickly excluded that possibility. Later I confirmed that the bird was smaller than Herrings and had a bill that was too small and too short for a Glaucous. I believe that the tail band also argues against Glaucous. I next considered Thayer's Gull, but decided that the tail band was not extensive enough, that there was no secondary bar, that the wing tips were too light (both in flight and on the standing bird), and that the tertials were not dark enough on the standing bird. All of the findings were a good fit for first-winter Iceland Gull. | The original documentation form event lasted from 13:15:00/13:35:00 on December 31, 1991 and 08:55:00/10:20:00 on January 1, 1992.
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
Records Committee review for rare bird sighting of Iceland Gull at Red Rock Reservoir Dam, 1991
|
Administrative records Clippings (information artifacts) Correspondence Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1991-03-13
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review for an Iceland Gull at Red Rock Reservoir Dam in Marion County, IA on March 13, 1991. Includes a record review document with votes, seven photographs, an article in Iowa Bird Life, correspondence about bird sighting and review, and eleven documentation forms submitted to the committee.
|
Schantz, Tim
|
Iceland Gull
|
Red Rock Dam
|
Below Red Rock Dam, Marion County, Iowa
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The documentation form by Tim Schantz is the earliest and the one that forms the basis of this record. Other documentation forms by Jim Fuller, Ann Johnson, Thomas H. Kent, Diane Porter, Jim Sinclair, Stephen Dinsmore, James Dinsmore, Beth Proescholdt, and Mark Proescholdt were submitted later. Other observers include Dawn DeVore, Dick Tetrault, Jim Scheib, Beth Brown, Michael Porter, Eugene Armstrong, Eloise Armstrong, and many unidentified observers. | Elimination of similar species: [...] Iowa Birds mentions that there is a problem separating Iceland with Thayers. If there was any problem with this bird being anything it was a Glaucous Gull of the same age. However the bird was smaller than the Herring Gulls that were on the roost. Long wings will rule out the rare small race of Glaucous Gull. There are not to [sic] many birds that have primaries lighter than the mantle in the sitting bird.
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Iowa Ornithologists' Union | MS 166
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11
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4
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