Form for reporting Iowa Christmas bird counts to Iowa Bird Life, W. Ross Silcock, December 20, 1986
|
Field notes Forms (documents)
|
Bird watching Birds--Counting Birds--Research Ornithology--Methodology Weather
|
1986-12-20
|
N/A
|
Manuscript, graphic, and printed material
|
Iowa Christmas bird counts of regular and uncommon species found in Payne Junction contributed by W. Ross Silcock, December 20, 1986. This item was used as supporting documentation for the Iowa Ornithologists Union Quarterly field report of winter 1986-1987.
|
Silcock, W. Ross
|
Cooper's Hawk Loggerhead Shrike House Sparrow Great Horned Owl Greater Scaup Ruddy Duck Spotted Towhee Snow Goose American Coot Northern Pintail Gadwall Dark-eyed Junco Northern Shrike Common Starling
|
Payne Junction
|
|
|
|
Iowa Ornithologists' Union | MS 166
|
22
|
6
|
Form for reporting Iowa Christmas bird counts to Iowa Bird Life, Hank Zaletel, December 20, 1986
|
Field notes Forms (documents)
|
Bird watching Birds--Counting Birds--Research Ornithology--Methodology Weather
|
1986-12-20
|
N/A
|
Manuscript, graphic, and printed material
|
Iowa Christmas bird counts of regular and uncommon species found in Ames and Nevada contributed by Hank Zaletel, December 20, 1986. This item was used as supporting documentation for the Iowa Ornithologists Union Quarterly field report of winter 1986-1987.
|
Zaletel, Hank
|
Yellow-bellied Sapsucker American Crow Blue Jay Common Grackle Northern Cardinal Lapland Longspur Loggerhead Shrike Common Pigeon White-throated Sparrow House Sparrow Barred Owl Black-capped Chickadee Great Blue Heron Red-winged Blackbird American Robin Dark-eyed Junco Common Starling
|
Ames Nevada
|
|
|
|
Iowa Ornithologists' Union | MS 166
|
22
|
6
|
Form for reporting Iowa Christmas bird counts to Iowa Bird Life, Ed Savage, December 20, 1986
|
Field notes Forms (documents)
|
Bird watching Birds--Counting Birds--Research Ornithology--Methodology Weather
|
1986-12-20
|
N/A
|
Manuscript, graphic, and printed material
|
Iowa Christmas bird counts of regular and uncommon species found in Marshalltown contributed by Ed Savage, December 20, 1986. This item was used as supporting documentation for the Iowa Ornithologists Union Quarterly field report of winter 1986-1987.
|
Savage, Ed
|
American Crow Blue Jay Brown-headed Cowbird Snow Bunting Common Pigeon Harris' Sparrow House Sparrow Pileated Woodpecker Winter Wren Black-capped Chickadee Dark-eyed Junco Northern Harrier Brown Creeper Common Starling Northern Bobwhite
|
Marshalltown
|
|
|
|
Iowa Ornithologists' Union | MS 166
|
22
|
6
|
Form for reporting Iowa Christmas bird counts to Iowa Bird Life, Thomas J. Staudt, December 20, 1986
|
Field notes Forms (documents)
|
Bird watching Birds--Counting Birds--Research Ornithology--Methodology Weather
|
1986-12-20
|
N/A
|
Manuscript, graphic, and printed material
|
Iowa Christmas bird counts of regular and uncommon species found in Iowa City contributed by Thomas J. Staudt, December 20, 1986. This item was used as supporting documentation for the Iowa Ornithologists Union Quarterly field report of winter 1986-1987.
|
Staudt, Thomas J.
|
American Kestrel American Crow Common Grackle Northern Cardinal Carolina Wren Common Pigeon Short-eared Owl Ring-necked Duck Goldeneye House Sparrow Bohemian Waxwing Wood Duck Hooded Merganser American Tree Sparrow American Coot Greater White-fronted Goose Winter Wren Black-capped Chickadee Great Blue Heron American Black Duck Common Merganser Common Starling
|
Iowa City
|
|
|
|
Iowa Ornithologists' Union | MS 166
|
22
|
6
|
Form for reporting Iowa Christmas bird counts to Iowa Bird Life, Dale Fye, December 20, 1986
|
Field notes Forms (documents)
|
Bird watching Birds--Counting Birds--Research Ornithology--Methodology Weather
|
1986-12-20
|
N/A
|
Manuscript, graphic, and printed material
|
Iowa Christmas bird counts of regular and uncommon species found in Cedar Rapids contributed by Dale Fye, December 20, 1986. This item was used as supporting documentation for the Iowa Ornithologists Union Quarterly field report of winter 1986-1987.
|
Fye, Dale
|
Red-headed Woodpecker American Crow Brown-headed Cowbird Carolina Wren Common Pigeon Ring-necked Duck White-throated Sparrow House Sparrow Sedge Wren American Tree Sparrow Canada Goose Winter Wren Black-capped Chickadee Great Blue Heron Northern Harrier Mallard Eastern Screech-Owl Common Starling
|
Cedar Rapids
|
|
|
|
Iowa Ornithologists' Union | MS 166
|
22
|
6
|
Form for reporting Iowa Christmas bird counts to Iowa Bird Life, Douglas C. Harr, December 20, 1986
|
Field notes Forms (documents)
|
Bird watching Birds--Counting Birds--Research Ornithology--Methodology Weather
|
1986-12-20
|
N/A
|
Manuscript, graphic, and printed material
|
Iowa Christmas bird counts of regular and uncommon species found in Spirit Lake contributed by Douglas C. Harr, December 20, 1986. This item was used as supporting documentation for the Iowa Ornithologists Union Quarterly field report of winter 1986-1987.
|
Harr, Douglas C.
|
Bald Eagle Red-tailed Hawk American Crow Common Grackle Song Sparrow Common Pigeon House Sparrow Brown Thrasher Spotted Towhee American Coot Canada Goose Black-capped Chickadee Dark-eyed Junco Northern Harrier Common Starling
|
Spirit Lake
|
|
|
|
Iowa Ornithologists' Union | MS 166
|
22
|
6
|
Form for reporting Iowa Christmas bird counts to Iowa Bird Life, Thelma Joy Fromm, December 20, 1986
|
Field notes Forms (documents)
|
Bird watching Birds--Counting Birds--Research Ornithology--Methodology Weather
|
1986-12-20
|
N/A
|
Manuscript, graphic, and printed material
|
Iowa Christmas bird counts of regular and uncommon species found in Mason City contributed by Thelma Joy Fromm, December 20, 1986. This item was used as supporting documentation for the Iowa Ornithologists Union Quarterly field report of winter 1986-1987.
|
Fromm, Thelma
|
Red-headed Woodpecker Rough-legged Hawk American Crow Blue Jay Varied Thrush Common Pigeon House Sparrow Brown Thrasher Barred Owl Bohemian Waxwing Gray Partridge Pileated Woodpecker Belted Kingfisher Black-capped Chickadee American Robin Dark-eyed Junco American Black Duck Mallard Eastern Screech-Owl Common Starling
|
Mason City
|
|
|
|
Iowa Ornithologists' Union | MS 166
|
22
|
6
|
Form for reporting Iowa Christmas bird counts to Iowa Bird Life, Francis L. Moore, December 20, 1986
|
Field notes Forms (documents)
|
Bird watching Birds--Counting Birds--Research Ornithology--Methodology Weather
|
1986-12-20
|
N/A
|
Manuscript, graphic, and printed material
|
Iowa Christmas bird counts of regular and uncommon species found in Bremer County contributed by Francis L. Moore, December 20, 1986. This item was used as supporting documentation for the Iowa Ornithologists Union Quarterly field report of winter 1986-1987.
|
Moore, Francis L.
|
Bald Eagle Red-shouldered Hawk American Kestrel American Crow Blue Jay Northern Cardinal Common Pigeon White-throated Sparrow House Sparrow Pileated Woodpecker Black-capped Chickadee American Robin Dark-eyed Junco Mourning Dove Eastern Screech-Owl Common Starling
|
Bremer County
|
|
|
|
Iowa Ornithologists' Union | MS 166
|
22
|
6
|
Form for reporting Iowa Christmas bird counts to Iowa Bird Life, Darwin Koenig, December 20, 1986
|
Field notes Forms (documents)
|
Bird watching Birds--Counting Birds--Research Ornithology--Methodology Weather
|
1986-12-20
|
N/A
|
Manuscript, graphic, and printed material
|
Iowa Christmas bird counts of regular and uncommon species found in Decorah contributed by Darwin Koenig, December 20, 1986. This item was used as supporting documentation for the Iowa Ornithologists Union Quarterly field report of winter 1986-1987.
|
Koenig, Darwin
|
Ruffed Grouse Northern Flicker American Crow Blue Jay Northern Cardinal Common Pigeon House Sparrow Great Horned Owl Barred Owl Great Blue Heron Dark-eyed Junco Common Merganser Common Starling
|
Decorah
|
|
|
|
Iowa Ornithologists' Union | MS 166
|
22
|
6
|
Form for reporting Iowa Christmas bird counts to Iowa Bird Life, K. L. Drews, December 20, 1986
|
Field notes Forms (documents)
|
Bird watching Birds--Counting Birds--Research Ornithology--Methodology Weather
|
1986-12-20
|
N/A
|
Manuscript, graphic, and printed material
|
Iowa Christmas bird counts of regular and uncommon species found in DeSoto National Wildlife Refuge contributed by K. L. Drews, December 20, 1986. This item was used as supporting documentation for the Iowa Ornithologists Union Quarterly field report of winter 1986-1987.
|
Drews, Karen L.
|
Cedar Waxwing Carolina Wren Ring-necked Duck House Sparrow Brown Thrasher American Wigeon Redhead Hooded Merganser Ruddy Duck Snow Goose American Coot Canada Goose Northern Pintail Northern Shoveler Greater White-fronted Goose Winter Wren Green-winged Teal Gadwall Great Blue Heron Mallard
|
DeSoto National Wildlife Refuge
|
|
|
|
Iowa Ornithologists' Union | MS 166
|
22
|
6
|
Form for reporting Iowa Christmas bird counts to Iowa Bird Life, Charles Fuller, December 20, 1986
|
Field notes Forms (documents)
|
Bird watching Birds--Counting Birds--Research Ornithology--Methodology Weather
|
1986-12-20
|
N/A
|
Manuscript, graphic, and printed material
|
Iowa Christmas bird counts of regular and uncommon species found in Burlington contributed by Charles Fuller, December 20, 1986. This item was used as supporting documentation for the Iowa Ornithologists Union Quarterly field report of winter 1986-1987.
|
Fuller, Charles R.
|
Red-headed Woodpecker Killdeer Ring-billed Gull American Crow Blue Jay Northern Cardinal Carolina Wren Common Pigeon Ring-necked Duck House Sparrow Long-tailed Duck Northern Goshawk Herring Gull Pileated Woodpecker Swamp Sparrow Golden-crowned Kinglet Black-capped Chickadee Dark-eyed Junco American Black Duck American Goldfinch Common Starling
|
Burlington
|
|
|
|
Iowa Ornithologists' Union | MS 166
|
22
|
6
|
Form for reporting Iowa Christmas bird counts to Iowa Bird Life, Margaret Seeck and Rita E. Efta, December 20, 1986
|
Field notes Forms (documents)
|
Bird watching Birds--Counting Birds--Research Ornithology--Methodology Weather
|
1986-12-20
|
N/A
|
Manuscript, graphic, and printed material
|
Iowa Christmas bird counts of regular and uncommon species found in Sac County contributed by Margaret Seeck and Rita E. Efta, December 20, 1986. This item was used as supporting documentation for the Iowa Ornithologists Union Quarterly field report of winter 1986-1987.
|
Efta, Rita E. Seeck, Margaret
|
Bald Eagle American Kestrel Harris' Sparrow House Sparrow American Tree Sparrow Pine Siskin Red-winged Blackbird American Robin Brown Creeper Common Starling
|
Sac County
|
|
|
|
Iowa Ornithologists' Union | MS 166
|
22
|
6
|
Form for reporting Iowa Christmas bird counts to Iowa Bird Life, Bill Heusinkveld, December 20, 1986
|
Field notes Forms (documents)
|
Bird watching Birds--Counting Birds--Research Ornithology--Methodology Weather
|
1986-12-20
|
N/A
|
Manuscript, graphic, and printed material
|
Iowa Christmas bird counts of regular and uncommon species found at Lake Rathbun contributed by Bill Heusinkveld, December 20, 1986. This item was used as supporting documentation for the Iowa Ornithologists Union Quarterly field report of winter 1986-1987.
|
Heusinkveld, Bill
|
Killdeer Ring-billed Gull Thayer's Gull Pied-billed Grebe Ring-necked Duck House Sparrow Red-breasted Merganser Black-legged Kittiwake American Wigeon Hooded Merganser Ruddy Duck Glaucous Gull Snow Goose American Coot Canada Goose Northern Pintail Northern Shoveler Gadwall Common Merganser Burrowing Owl Mallard
|
Rathbun Lake
|
|
|
|
Iowa Ornithologists' Union | MS 166
|
22
|
6
|
Form for reporting Iowa Christmas bird counts to Iowa Bird Life, Beth Brown, December 20, 1986
|
Field notes Forms (documents)
|
Bird watching Birds--Counting Birds--Research Ornithology--Methodology Weather
|
1986-12-20
|
N/A
|
Manuscript, graphic, and printed material
|
Iowa Christmas bird counts of regular and uncommon species found in Lucas contributed by Beth Brown, December 20, 1986. This item was used as supporting documentation for the Iowa Ornithologists Union Quarterly field report of winter 1986-1987.
|
Brown, Beth
|
Red-headed Woodpecker American Crow Cedar Waxwing House Sparrow Great Horned Owl Barred Owl Purple Finch American Tree Sparrow Swamp Sparrow Black-capped Chickadee Dark-eyed Junco Horned Lark Common Starling
|
Lucas
|
|
|
|
Iowa Ornithologists' Union | MS 166
|
22
|
6
|
Form for reporting Iowa Christmas bird counts to Iowa Bird Life, Peter C. Petersen, December 19, 1986
|
Field notes Forms (documents)
|
Bird watching Birds--Counting Birds--Research Ornithology--Methodology Weather
|
1986-12-19
|
N/A
|
Manuscript, graphic, and printed material
|
Iowa Christmas bird counts of regular and uncommon species found in Oakville contributed by Peter C. Petersen, December 19, 1986. This item was used as supporting documentation for the Iowa Ornithologists Union Quarterly field report of winter 1986-1987.
|
Petersen, Peter C.
|
Ring-billed Gull Turkey Vulture American Crow Blue Jay White-breasted Nuthatch Northern Cardinal Lapland Longspur Carolina Wren Common Pigeon Short-eared Owl House Sparrow Northern Goshawk Osprey Golden Eagle American Tree Sparrow Snow Goose Canada Goose Northern Pintail Black-capped Chickadee Dark-eyed Junco Mourning Dove American Black Duck American Goldfinch Sharp-shinned Hawk Downy Woodpecker Mallard Common Starling
|
Oakville
|
|
|
|
Iowa Ornithologists' Union | MS 166
|
22
|
6
|
Rare bird documentation from for Turkey Vulture at Mark Twain Refuge, 1986
|
Field notes Forms (documents)
|
Birds--Identification Ornithology Rare birds
|
1986-12-19
|
1987-01-02
|
Rare birds documentation form
|
Rare bird documentation form for two Turkey Vultures at Mark Twain Refuge near Toolesboro in Louisa County, IA on December 19, 1986.
|
Wiederrecht, Ed
|
Turkey Vulture
|
Port Louisa National Wildlife Refuge - Big Timber Division
|
Sky over Mark Twain Refuge at Mississippi river bluff no Road Toolsboro IA.
|
Woods, River Bluff, Ponds, Sloughs etc.
|
The documentation form by Ed Wiederrecht is the only one submitted and forms the basis of this record. Other observers include Ronald Cross. | Elimination of similar species: Bald Eagles are approximately same size but the adults have white heads. Tails & the immatures do not have the distinctive 2 toned pattern on their flight feathers under the wings. | The original documentation form event lasted from 15:00:00/15:15:00.
|
Iowa Ornithologists' Union | MS 166
|
32
|
26
|
Form for reporting Iowa Christmas bird counts to Iowa Bird Life, Sharon Kaufman, December 18, 1986
|
Field notes Forms (documents)
|
Bird watching Birds--Counting Birds--Research Ornithology--Methodology Weather
|
1986-12-18
|
N/A
|
Manuscript, graphic, and printed material
|
Iowa Christmas bird counts of regular and uncommon species found in Lost Nation contributed by Sharon Kaufman, December 18, 1986. This item was used as supporting documentation for the Iowa Ornithologists Union Quarterly field report of winter 1986-1987.
|
Kaufman, Sharon
|
American Crow Blue Jay Brown-headed Cowbird White-breasted Nuthatch Northern Cardinal Lapland Longspur Common Pigeon House Sparrow Spotted Towhee American Tree Sparrow Swamp Sparrow Belted Kingfisher Black-capped Chickadee Dark-eyed Junco Horned Lark American Goldfinch Sharp-shinned Hawk Common Starling
|
Lost Nation
|
|
|
|
Iowa Ornithologists' Union | MS 166
|
22
|
6
|
Records Committee review for rare bird sighting of Thayer's Gull at Lock and Dam 19, 1986
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1986-12-17
|
1994-11-04
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at Lock and Dam 19 in Keokuk in Lee County, IA on December 17, 1986. Includes a record review document with votes, summary of review, and a documentation form submitted to the committee.
|
Cecil, Robert I.
|
Thayer's Gull
|
Lock Number 19
|
Lock and Dam 19, Keokuk, Lee Co., Iowa
|
River Rapids
|
The documentation form by Robert Cecil is the only one submitted and forms the basis of this record. Another observer includes Francis L. Moore. | Elimination of similar species: Herring Gull:Bill size, pattern of wingtips on upper and under surface of wings. Ringbill: size. Kumlien's Iceland: black rather than gray in wintip [sic] (Tom Kent, personal communication). Adult Glaucous has no black in wingtips. | The original documentation form event occurred at various times on the various dates listed on the documentation form.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
Rare bird documentation form for Prairie Falcon southeast of Kelley, 1986
|
Field notes
|
Birds--Identification Ornithology--Societies, etc Rare birds
|
1986-12-16
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Prairie Falcon southeast of Kelley in Story County, IA on December 16, 1986.
|
Dinsmore, Stephen J.
|
Prairie Falcon
|
Kelley
|
2 mi. s and 1 mi. e of Kelly [sic], Story Co.
|
perched in a tree over a large, grassy field
|
The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. Other observers include Bart Ballard. | Elimination of similar species: The long tail and pointed wings make the bird a falcon of some sort. The size eliminates Merlin and Am. Kestrel. The black axillaries eliminate Peregrine Falcon and Gyrfalcon. | The original documentation form event lasted from 11:07:00/11:13:00 on December 16 and 08:10:00/08:23:00 on December 17.
|
Iowa Ornithologists' Union | MS 166
|
33
|
35
|
Records committee review for rare bird sighting of Thayer's Gull at Red Rock Reservoir, 1986
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1986-12-13
|
1993-09-07
|
Rare birds documentation form
|
Records Committee review for two to five Thayer's Gulls at Red Rock Reservoir in Marion County, IA on December 13, 1986. Includes a record review document with votes, a summary of the review, and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Thayer's Gull
|
Lake Red Rock
|
Red Rock Res., Marion Co.-below dam and near the Hwy 14 bridge
|
resting on sand bar below dam and feeding near open water on main lake
|
The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. Other observers include Mark Proescholdt, Tom Kent, and Tom Staudt. | Elimination of similar species: The dark tail band and fairly dark body coloration should eliminate Iceland Gull. The smaller bill, rounder head, smaller size, more even body coloration, and pale undersides of the wings eliminates first-winter Herring Gull. | The original documentation form event occurred around 10:00:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
Records Committee review for rare bird sighting of Lesser Black-backed Gull at Elk Rock State Park, 1986
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1986-12-11
|
1993-09-07
|
Rare birds documentation form
|
Records Committee review for a Lesser Black-backed Gull at Elk Rock State Park in Marion County, IA on December 11, 1986. Includes a record review document with votes, a summary of the review, and a documentation form submitted to the committee.
|
Fuller, James L
|
Lesser Black-backed Gull
|
Elk Rock State Park
|
on ice in Lake Red Rock as viewed from bluff in N. Elk Rock St. Park
|
Reservoir on ice
|
The documentation form by Jim Fuller is the only one submitted and forms the basis of this record. | Elimination of similar species: Great Black Backed - size other dark immature gulls - wings - more solid + consistent color + mantle solid dark gray | The original documentation form event lasted from 14:40:00/15:15:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
5
|
Rare bird documentation form for Osprey at Goose Pond at Louisa National Wildlife Refuge in 1986
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1986-12-08
|
1987-01-20
|
Manuscript, graphic, and printed material
|
Rare bird documentation form for two Ospreys at Goose Pond at Louisa National Wildlife Refuge in Louisa County, IA on December 8, 1986 and one Osprey on December 15, 1986.
|
McCarty, Chet
|
Osprey
|
Port Louisa National Wildlife Refuge - Louisa Division
|
|
|
|
Iowa Ornithologists' Union | MS 166
|
33
|
19
|
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
|
Record Committee review for rare bird sighting of Pacific Loon at Saylorville Reservoir, 1986
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1986-12-06
|
1994-02-05
|
Rare birds documentation form
|
Record Committee review for a Pacific Loon at Saylorville Reservoir in Polk County, IA on December 6, 1986. Includes a record review document with votes, a request of the reconsideration of sight records, and a documentation forms submitted to the committee.
|
Moore, Francis L.
|
Pacific Loon
|
Saylorville Lake
|
Near Rock rip-rap off shore from Cherry Glen, Saylorville Res., Polk Co. Open water near cove.
|
Open water near cove
|
The documentation form by Francis L. Moore is the only one submitted and forms the basis of this record. | Elimination of similar species: Red-throated and Common Loon does not have tri-toned neck pattern as this bird had. Red-throated also has slightly upturned bill, this bird did not. | The original documentation form event lasted from 11:45:00/12:05:00
|
Iowa Ornithologists' Union | MS 166
|
7
|
7
|
Records Committee review for rare bird sighting of Thayer's Gull at Cottonwood Recreation Area near Saylorville Dam, 1986
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1986-12-03
|
1993-09-07
|
Rare birds documentation form
|
Records Committee review of a Thayer's Gull at Cottonwood Recreation Area near Saylorville Dam in Polk County, IA on December 3, 1986. Includes a record review document with votes and a documentation form submitted to the committee.
|
Petersen, Peter C.
|
Thayer's Gull
|
Cottonwood Recreation Area
|
Cottonwood Rec. Area below Saylorville Dam. Polk Co
|
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Other observers include Beth Proescholdt, Mark Proescholdt, Steve Dinsmore, Gil Sandvick, and unidentified other observers. | Elimination of similar species: [...] Birds call not distinguishable from Ring-billed Gulls feeding with it. [...] Herring Gull eliminated by lack of sharp contrast between primaries + remainder of mantle + back and whitish undersides of primaries. | The original documentation form event lasted from 10:02:00/10:03:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|