|
Rare bird documentation form for Bohemian Waxwing at Oak Grove Recreation Area at Saylorville Reservoir, 1986
|
Field notes
|
Birds--Identification Birdsongs Ornithology Rare birds
|
1986-11-23
|
1986-11-25
|
Rare birds documentation form
|
Rare bird documentation form for a Bohemian Waxwing at Oak Grove Recreation Area at Saylorville Reservoir in Polk County, IA on November 23, 1986.
|
Dinsmore, Stephen J.
|
Bohemian Waxwing
|
Oak Grove Recreation Area
|
Oak Grove Recreation Area of the Saylorville Reservoir, Polk Co.
|
sitting in dead tree along road
|
The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: Cedar Waxwing eliminated by call, size, grayer coloration, and rusty undertail coverts. | The original documentation form event lasted from 10:45:00/11:00:00.
|
Iowa Ornithologists' Union | MS 166
|
35
|
16
|
|
Records Committee review for rare bird sighting of Thayer's Gull near Oak Grove Beach and Saylorville Reservoir Dam, 1986
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1986-11-23
|
1993-09-07
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull near Oak Grove Beach and Saylorville Reservoir Dam in Polk County, IA on November 23, 1986. Includes a record review document with votes, a summary of the review, and ten documentation forms submitted to the committee.
|
Dinsmore, Stephen J.
|
Thayer's Gull
|
Saylorville Dam Oak Grove Recreation Area
|
Saylorville Reservoir, Polk Co. (Oak Grove Beach and near dam)
|
seen resting on beach and flying over water near dam
|
The documentation form by Steve Dinsmore forms the basis of this record. Other documentation forms by Bob Myers, Mark Proescholdt, Beth Proescholdt, Thomas H. Kent, Jim Fuller, Francis L. Moore, Robert Cecil, and Paul Martsching were submitted. | Elimination of similar species: The darker body plumage and dark tail band eliminate Iceland Gull (Kumlien's form). The smaller size, smaller, more delicate bill, more rounded head, silvery white underwing pattern, more uniform body color, and more uniform upperwing pattern eliminate first winter Herring Gull. | The original documentation form event lasted from 10:50:00/11:55:00 and 15:50:00/16:05:00 on November 23, 1986 and 14:50:00/15:35:00 on November 24, 1986.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull near Saylorville Reservoir Dam and Oak Grove Beach, 1986
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1986-11-23
|
1993-09-07
|
Rare birds documentation form
|
Records Committee review for seven or more Thayer's Gulls near Saylorville Reservoir Dam and Oak Grove Beach in Polk County, IA on November 23, 1986. Includes a record review document with votes, a summary of the review, and seven documentation forms submitted to the committee.
|
Dinsmore, Stephen J.
|
Thayer's Gull
|
Saylorville Dam Oak Grove Recreation Area
|
Saylorville Reservoir, Polk Co.(Oak Grove Beach and near dam)
|
seen resting on beach and flying over water near dam
|
The documentation form by Steve Dinsmore forms the basis of this record. Other documentation forms by Steve Dinsmore were submitted. Other observers include Paul Martsching, Bob Myers, Beth Proescholdt, Mark Proescholdt, and many unidentified other observers. | Elimination of similar species: The darker body plumage and dark tail band eliminate Iceland Gull (Kumlien's form). The smaller size, smaller, more delicate bill, more rounded head, silvery white underwing pattern, more uniform body color, and more uniform upperwing pattern eliminate first winter Herring Gull. | The original documentation form event occurred at various times.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Rare bird documentation form for Red-necked Grebe at Saylorville Reservoir, 1986
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1986-11-24
|
1986-11-25
|
Rare birds documentation form
|
Rare bird documentation form for a Red-necked Grebe at Saylorville Reservoir in Polk County, IA on November 24, 1986.
|
Dinsmore, Stephen J.
|
Red-necked Grebe
|
Saylorville Lake
|
Saylorville Reservoir, Polk Co.
|
large lake
|
The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: Western Grebe eliminated by its longer neck, thinner bill, and lack of a white crescent on the cheek. | The original documentation form event lasted from 14:35:00/14:50:00.
|
Iowa Ornithologists' Union | MS 166
|
32
|
13
|
|
Rare bird documentation form for Glaucous Gull at Saylorville Dam, 1986
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1986-11-26
|
1986-11-27
|
Rare birds documentation form
|
Rare bird documentation form for a Glaucous Gull at Saylorville Dam in Polk County, IA on November 26, 1986.
|
Moore, Francis L.
|
Glaucous Gull
|
Saylorville Dam
|
Along Des Moines River below Saylorville dam, Polk Co.
|
Above open flowing river
|
The documentation form by Francis L. Moore is the only one submitted and forms the basis of this record. Other observers include Tom Kent, Robert Cecil, Steve Dinsmore, Jim Fuller, and many other observers. | Elimination of similar species: This bird too large for Iceland and Thayer's Gulls. | The original documentation form event lasted from 10:30:00/11:00:00.
|
Iowa Ornithologists' Union | MS 166
|
34
|
37
|
|
Rare bird documentation form for Merlin at Saylorville Reservoir, 1986
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1986-11-27
|
1986-12-01
|
Rare birds documentation form
|
Rare bird documentation form for a Merlin at Saylorville Reservoir in Polk County, IA on November 27, 1986.
|
Martsching, Paul
|
Merlin
|
Saylorville Dam
|
Saylorville Reservoir - Polk Co., Iowa (at the dam)
|
|
The documentation form by Paul Martsching is the only one submitted and forms the basis of this record. Other observers include Steve Dinsmore. | Elimination of similar species: Kestrel - this bird had no rust or rufous on back, wings, or tail; or blue in wings like a male Kestrel. And did not have strong face pattern of Kestrel. | The original documentation form event occurred in the AM.
|
Iowa Ornithologists' Union | MS 166
|
33
|
32
|
|
Rare bird documentation form for Bohemian Waxwing north of Ledges State Park, 1986
|
Field notes
|
Birds--Identification Birdsongs Ornithology Rare birds
|
1986-11-28
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Boehmian Waxwing north of Ledges State Park in Boone County, IA on November 28, 1986.
|
Dinsmore, Stephen J.
|
Bohemian Waxwing
|
Ledges State Park
|
3 miles n. of Ledges State Park, Boone Co.
|
feeding in large cedar grove
|
The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: see above [...] As the bird perched with four Cedar Waxwings, I saw that it was larger, grayer, had a longer crest, had more rufous color on the face, had rusty undertail coverts, and had red, yellow, and white on the wing. The bird called several times and sounded like a loud, hoarse Cedar Waxwing. | The original documentation form event lasted from 09:15:00/09:20:00.
|
Iowa Ornithologists' Union | MS 166
|
35
|
16
|
|
Rare bird documentation form for Long-tailed Duck at Saylorville Reservoir, 1986
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1986-11-28
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Long-tailed Duck at Saylorville Reservoir in Polk County, IA on November 28, 1986.
|
Dinsmore, Stephen J.
|
Long-tailed Duck
|
Saylorville Lake
|
Saylorville Reservoir, Polk Co. (near Jester Park)
|
large lake
|
The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: No other duck shows so much white color and a stubby, dark bill. | The original documentation form event lasted from 15:50:00/16:05:00.
|
Iowa Ornithologists' Union | MS 166
|
33
|
14
|
|
Rare bird documentation form for Lesser Black-backed Gull at Saylorville Reservoir, 1986
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1986-11-29
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Lesser Black-backed Gull at Saylorville Reservoir in Polk County, IA on November 29, 1986.
|
Dinsmore, Stephen J.
|
Lesser Black-backed Gull
|
Saylorville Lake
|
Saylorville Reservoir, Polk Co.
|
sitting on ice above dam
|
The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. Other observers include Peter Wickham, Mark Brogie, Barb Wilson, Tanya Bray, and Bery Engebretsen. | Elimination of similar species: Great Black-backed Gull was eliminated by the smaller size, contrast between the wingtips and the rest of the wing, and by the heavy streaking on the head (head should be mostly white on a Great Black-backed Gull). California Gull was eliminated by the darker mantle, darker underwing and dark carpal bar, lack of a dark spot on the bill, and by the dark smudge at the base of the bill (this is characteristic of 3rd summer Lesser Black-backed Gulls and is never present on California Gulls). | The original documentation form event lasted from 10:08:00/12:10:00.
|
Iowa Ornithologists' Union | MS 166
|
34
|
36
|
|
Records Committee review for rare bird sighting of Lesser Black-backed Gull at Saylorville Dam, 1986
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1986-11-29
|
1993-09-07
|
Rare birds documentation form
|
Records Committee review for a Lesser Black-backed Gull at Saylorville Dam in Polk County, IA on November 29, 1986. Includes a record review document with votes, a summary of review, and three documentation forms submitted to the committee.
|
Dinsmore, Stephen J.
|
Lesser Black-backed Gull
|
Saylorville Dam
|
Saylorville Reservoir, Polk Co.
|
sitting on ice above dam
|
The documentation form by Steve Dinsmore forms the basis of this record. Other documentation forms by Tanya Bray and Barbara Wilson were submitted. Other observers include Peter Wickham, Mark Brogie, and Bery Engebretsen. | Elimination of similar species: Great Black-backed Gull was eliminated by the smaller size, contrast between the wingtips and the rest of the wing, and by the heavy streaking on the head(head should be mostly white on a Great Black-backed Gull). California Gull was eliminated by the darker mantle, darker underwing and dark carpal bar, lack of a dark spot on the bill, and by the dark smudge at the base of the bill(this is characteristic of 3rd summer Lesser Black-backed Gulls and is never present on California Gulls). | The original documentation form event lasted from 10:08:00/12:10:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
5
|
|
Records Committee review for rare bird sighting of Pacific Loon at Saylorville Reservoir, 1986
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1986-11-30
|
1994-02-05
|
Rare birds documentation form
|
Record Committee review for a Pacific Loon at Saylorville Reservoir in Polk County, IA, on November 30, 1986. Includes a record review document with votes, a request of the reconsideration of sight records, an Iowa Bird Life article, a summary of review, and two documentation forms submitted to the committee.
|
Dinsmore, Stephen J.
|
Pacific Loon
|
Saylorville Lake
|
Saylorville Reservoir, Polk Co. (Cherry Glen Recreation Area)
|
large reservoir
|
The documentation form by Steve Dinsmore is the earliest and the one that forms the basis of this record. Another documentation forms by Paul Martsching was submitted later. | Elimination of similar species: Common Loon was eliminated by bill size, more rounded forehead, unspeckled back, and by the neck pattern. Red-throated Loon was eliminated by bill shape, lack of speckling on the back, and three-toned neck pattern. | The original documentation form event lasted from 08:43:00/08:45:00.
|
Iowa Ornithologists' Union | MS 166
|
7
|
7
|
|
Rare bird documentation form for Great Black-backed Gull at Saylorville Reservoir, 1986
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1986-11-30
|
1986-12-01
|
Rare birds documentation form
|
Rare bird documentation form for a Great Black-backed Gull at Saylorville Reservoir in Polk County, IA on November 30, 1986 and December 1, 1986.
|
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 only one submitted and forms the basis of this record. Other observers include Paul Martsching. | 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 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
|
34
|
38
|
|
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
|
|
Iowa Ornithologists' Union, Quarterly field report, winter 1986-1987
|
Field notes
|
Bird watching Birds--Counting Birds--Research Laridae | Gulls and Terns Ornithology--Methodology Water birds Weather
|
1986-12-01
|
1987-02-28
|
Manuscript, graphic, and printed material
|
Quarterly field report for the winter 1986-1987 titled "Field reports--winter 1986-1987" contributed by W. Ross Silcock. The report is heavily annotated. A total of 150 species were detected during the winter reporting period.
|
Silcock, W. Ross Iowa Ornithologists' Union
|
Thayer's Gull Great Black-backed Gull Red-throated Loon Black-billed Magpie Gyrfalcon Pacific Loon California Gull Lesser Black-backed Gull Rock Wren Painted Bunting
|
Iowa
|
|
|
|
Iowa Ornithologists' Union | MS 166
|
22
|
6
|
|
Records Committee review for rare bird sighting of Red-throated Loon at Saylorville Reservoir, 1986
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1986-12-01
|
1993-09-07
|
Rare birds documentation form
|
Records Committee review for a Red-throated Loon at Saylorville Reservoir in Polk County, IA on December 1, 1986. Includes a record review document, a summary of the review of the committee, and a documentation form submitted to the committee.
|
Dinsmore, Stephen J.
|
Red-throated Loon
|
Saylorville Lake
|
Saylorville Reservoir, Polk Co. (Cherry Glen Recreation Area)
|
swimming in open water off rock jetty
|
The documentation form by Steve Dinsmore is the earliest and the one that forms the basis of this record. | Elimination of similar species: Common Loon eliminated by smaller size, head posture, shorter, upturned bill, speckling on back, more rounded forehead, and sharp contrast between throat and back of neck. Pacific Loon eliminated by bill shape, head posture, speckling on back, two-toned (not three-toned) neck pattern, lack of chinstrap (not definitive, but helpful), and crown color not including the eye (should include the eye on Pacific Loon). | The original documentation form event lasted from 15:26:00/15:50:00.
|
Iowa Ornithologists' Union | MS 166
|
7
|
5
|
|
Rare bird documentation form for Dunlin at Big Creek State Park, 1986
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1986-12-02
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Dunlin at Big Creek State Park in Polk County, IA on December 2, 1986.
|
Dinsmore, Stephen J.
|
Dunlin
|
Big Creek State Park
|
Big Creek SP-north end
|
feeding on mudflat
|
The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. | Elimination of similar species: The dark legs and bill eliminate Purple Sandpiper, one of only a few sandpipers likely to be around this late. All other sandpipers eliminated by the size, dark legs, long, drooping bill, dark breast, and dark, unmarked back and wings. | The original documentation form event lasted from 14:15:00/14:25:00.
|
Iowa Ornithologists' Union | MS 166
|
34
|
24
|
|
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 of Lesser Black-backed Gull at Elk Rock State Park, 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 Lesser Black-backed Gull at Elk Rock State Park in Marion County, IA on December 3, 1986. Includes a record review document with votes and a documentation form submitted to the committee.
|
Petersen, Peter C.
|
Lesser Black-backed Gull
|
Elk Rock State Park
|
[...] resting on mud bar just w. of old Hwy 14 a long north edge of reservoir.
|
|
The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. Gil Sandvick was another observer. | Elimination of similar species: [...] Bird slightly smaller than nearby adult Herring Gull, larger than Ring-billed Gulls surrounding it. head white with tan flecking back + mantle slaty grey, much darker than Herring Gull. | The original documentation form event lasted from 14:45:00/14:50:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
5
|
|
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
|
1986-12-03
|
1993-09-07
|
Rare birds documentation form
|
Records Committee review of two Thayer's Gulls at Red Rock Reservoir in Marion County, IA on December 3, 1986. Includes a record review document with votes and a documentation form submitted to the committee.
|
Kent, Thomas H. (Thomas Hugh), 1934-
|
Thayer's Gull
|
Lake Red Rock
|
Red Rock Reservoir
|
reservoir with ice and open water.
|
The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Other observers include Cal Knight, Bernie Knight, and Jim Fuller. | Elimination of similar species: Herring Gull --see above. [...] The bird is not any larger than some of the ring-bills--some of the ring-bills are smaller. The larger ring-bills are almost as big as this bird, and it is distinctly smaller than a number of Herring Gulls in the same field. The bill is much smaller and thinner; the head is small. [...] The striking thing about this bird is the size, bill shape and head shape compared to the nearby herrings and very distinct smudge through the eye." | The original documentation form event lasted from around 09:10:00 for several minutes and 15:55:00 for many minutes.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
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
|
|
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 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
|
|
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 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
|
|
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
|