|
Rare bird documentation form for Peregrine Falcon at Sand Point in Hawkeye Wildlife Area, 1985
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1985-05-07
|
1985-05-09
|
Rare birds documentation form
|
Rare bird documentation form for a Peregrine Falcon at Sand Point in Hawkeye Wildlife Area in Johnson County, IA on May 7, 1985.
|
Knight, Calvin A.
|
Peregrine Falcon
|
Sand Point
|
@ North end of Sandy Point, Hawkeye Wildlife Area - Coralville Res. Johnson Co., Iowa
|
River Bottom but completely open because of previous high water.
|
The documentation form by Calvin A. Knight is the only one submitted and forms the basis of this record. Other observers include Bernie Knight. | Elimination of similar species: Am. Kestral [sic]: But no rusty tail. Merlin: But no prominent tail barring; also; the Peregrine showed the black cap with black sideburns on white background. | The original documentation form event occurred at 19:15:00.
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Iowa Ornithologists' Union | MS 166
|
33
|
34
|
|
Records Committee review for rare bird sighting for Chestnut-collared Longspur southeast of Hills, 1983
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1983-03-12
|
1993-09-01
|
Rare birds documentation form
|
Records Committee review for a Chestnut-collared Longspur southeast of Hills in Johnson County, IA on March 12, 1983. Includes a record review document with votes, a summary of the review, typed copies of documents, field notes, and a documentation form submitted to the committee.
|
Knight, Calvin A.
|
Chestnut-collared Longspur
|
Hills
|
Johnson Co., Iowa - 2 mi. East of Hills + 5/10 mi So.
|
Soy-Bean Stubble Field
|
The documentation form by Calvin Knight is the only one submitted and forms the basis of this record. Another observer was Bernadine Knight. | Elimination of similar species: Lapland + Smith's Longspurs were in field of scope - close proximity - at same time making comparison easy | The original documentation form event lasted from 17:40:00/17:50:00.
|
Iowa Ornithologists' Union | MS 166
|
13
|
43
|
|
Rare bird documentation form for Prairie Falcon at Booth Township in Palo Alto County, 1988
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1988-02-03
|
1988-02-04
|
Rare birds documentation form
|
Rare bird documentation form for a Prairie Falcon at Booth Township in Palo Alto County, IA on February 3, 1988.
|
Knight, Calvin A.
|
Prairie Falcon
|
Booth Township
|
S.E. Cor. Section 33, Booth Township (T94-N,R34-W) Palo Alto Co., Iowa
|
open farms land; snow covered
|
The documentation form by Calvin Knight is the only one submitted and forms the basis of this record. Other observers include Ron Reese, Jim Fuller, M. Stewart, Bernie Knight, and Ron Harms. | Elimination of similar species: Peregrine Falcon: lighter color + underwing pattern eliminated the Peregrine | The original documentation form event occurred at 07:20:00.
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Iowa Ornithologists' Union | MS 166
|
33
|
35
|
|
Rare bird documentation form for Peregrine Falcon in Delaware County, 1984
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1984-04-06
|
1984-05-17
|
Rare birds documentation form
|
Rare bird documentation form for a Peregrine Falcon in east-central Delaware County, IA on April 6, 1984.
|
Bendorf, Carl J.
|
Peregrine Falcon
|
Delaware County
|
EC Delaware Co., along hgwy 20
|
Typical Iowa countryside-cultivated fields with scattered small woodlots and stream bottoms.
|
The documentation form by Carl Bendorf is the only one submitted and forms the basis of this record. | Elimination of similar species: First impression of size of Red-tail seems to rule out Merlin. Falcon shape of wings rules out accipiters. | The original documentation form event occurred around 10:00:00.
|
Iowa Ornithologists' Union | MS 166
|
33
|
34
|
|
Rare bird documentation form for Northern Goshawk at Kent Park, 1983
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1983-12-17
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Northern Goshawk at Kent Park in Johnson County, IA on December 17, 1983.
|
Bendorf, Carl J.
|
Northern Goshawk
|
F W Kent County Park
|
Kent Park, Johnson Co. (NW side of park)
|
Extensive conifers, weedy clearings, scattered trees.
|
The documentation form by Carl Bendorf is the only one submitted and forms the basis of this record. Other observers include Dan Ray. | Elimination of similar species: Size (large as Great Horned Owl) eliminates Cooper's Hawk. | The original documentation form event occurring around 14:30:00.
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Iowa Ornithologists' Union | MS 166
|
33
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25
|
|
Rare bird documentation form for Lesser Black-backed Gull at Coralville Reservoir, 1993
|
Field notes
|
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.
|
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
|
36
|
|
Records Committee review for rare bird sighting of Least Tern at Cone Marsh, 1984
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1984-05-19
|
1993-09-01
|
Rare birds documentation form
|
Records Committee review for a Least Tern at Cone Marsh in Louisa County, IA on May 19, 1984. Includes a record review document with votes, a summary of a review, and two documentation forms submitted to the committee.
|
Bendorf, Carl J.
|
Least Tern
|
Cone Marsh Wildlife Management Area
|
Cone Marsh
|
State owned marsh of about 700 Acres.
|
The documentation form by Carl J. Bendorf forms the basis of this record. Another documentation form by Thomas J. Staudt was submitted. | Elimination of similar species: The obvious possibilities are both Common or Forsters' Terns. At the very most, this bird was perhaps half the size of the gulls. This would put the body length in the general range of 8" long with a wingspread of 24" (according to size of Ring bills in the Natl. Geo. Guide) The Natl. Geo. Guide gives the general size range of Least Tern as 9" long with a wingspread of 20 ". The sizes of the other terns are given as Common L 14 1/2', W 30", and Forsters' L 14 1/2, W=31". Thus on size alone, Least Tern seems to be the only reasonable choice. The short but deeply forked tail also indicates Least Tern. Harrison's SEABIRDS says, on page 182, "Size and hurried flight,..., usually sufficient to clinch identification in northern hemisphere". The flight of this bird was much quicker and fluttery compared to my experience with the slower, deeper, and more deliberate flight of Common and Forster's Terns. | The original documentation form event lasted from 09:30:00/09:32:00.
|
Iowa Ornithologists' Union | MS 166
|
12
|
3
|
|
Records Committee review for rare bird sighting of a Thayer's Gull at Red Rock Reservoir Dam, 1985
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1985-12-10
|
1993-09-03
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at Red Rock Reservoir Dam in Marion County, IA on December 10, 1985. Includes a record review document with votes, an article in Iowa Bird Life, and six documentation forms submitted to the committee.
|
Bendorf, Carl J.
|
Thayer's Gull
|
Red Rock Dam
|
Red Rock Res. Tailwater
|
|
The documentation form by Carl J. Bendorf forms the basis of this record. Other documentation forms by Thomas H. Kent, Francis L. Moore, Bob Myers, Beth Proescholdt and Mark Proescholdt, and Dennis Thompson were submitted. Other observers include Joe Schaufenbuel, Darwin Koenig, Steve Dinsmore, Eugene Armstrong, Eloise Armstrong, and many unidentified observers. | Elimination of similar species: Thayer's Gull is a difficult bird to identify. In researching this problem, I have found several helpful sources in addition to the standard field guides and I have tried to understand what it takes to know a Thayer's Gull when you see one. Nearly every reference makes it clear that Thayer's cannot be identified on the basis of one or two positive field marks. It takes a combination of characters to come to a conclusion of any certainty. In discussing this particular observation, I will examine each of the fieldmarks and compare and contrast to similar species with liberal reference to the literature, especially Lehman (1980). The most likely similar gulls in this case are 1st winter Herring and 1st winter Iceland (Kumlien's). The Kumlien's form is the darker form of the Iceland Gull and is the form that breeds in the Baffin Island area and winters mainly on the Atlantic coast. Lehman's article deals mainly with Kumlien's. Several similarly sized and possible but unlikely candidates can be eliminated rather quickly. A 1st winter California should not have an all dark bill and would show much darkening in the primaries in flight. Lesser Black-backed Gull could be about the right size, but in flight a 1st winter bird should show darker primary and secondary coverts, more extensively dark primaries, even compared to Herring Gull. A 1st summer Slaty-backed Gull is also light uniform brown with an all dark bill, but it should exhibit extensive darkening in the primaries on the upper wing. A 1st winter Glaucous-winged Gull would be very similar to Thayer's but should be larger, with a larger bill, and less mottling to the body color. Except for the first two, one would probably not consider the likelihood of their occurrence in Iowa to be very great. One hybrid, Glaucous-winged X Western, might be similar but should have a quite heavy bill. [...] Summary: Of the most likely similar species, 1st winter Herring Gull and 1st winter Kumlien's Iceland Gull, each is eliminated by one or more of the features discussed above. The wing pattern is especially damaging to the possibility of Herring, along with the bill shape and size. Iceland is ruled out by the presence of the noticeable tail band and by the darker secondaries on the upper wing. To identify a Thayer's Gull, one must see a combination of field marks. I feel that the bird I saw at Red Rock is consistent on every point.| The original documentation form event lasted from 14:15:00/14:45:00.
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Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Whimbrel north of Swan Lake, 1983
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1983-05-24
|
1993-09-01
|
Rare birds documentation form
|
Records Committee review of a Whimbrel north of Swan Lake in Johnson County, IA on May 24, 1983. Includes a record review document with votes, an article in Iowa Bird Life, a summary of the review, and two documentation forms submitted to the committee.
|
Bendorf, Carl J.
|
Whimbrel
|
Swan Lake
|
Approx 3/4 mile north of Swan Lake, Johnson Co., IA
|
Along muddy shoreline of large flooded area. Some weed stubble.
|
The documentation form by Carl J. Bendorf is the earliest and the one that forms the basis of this record. Other documentation forms by James P. Sandrock were submitted later. Other observers include Tom Staudt, James G. Huntington, John L. Cordell, Tom Kent, and Mike Newlon. | Elimination of similar species: According to Robbins, et al., Bristle-thighed Curlew should have a bright rusty tail. This was not observed. Robbins shows Eskimo Curlew with much more barring on flanks, smaller bill. | The original documentation form event lasted from 10:15:00/10:30:00.
|
Iowa Ornithologists' Union | MS 166
|
9
|
23
|
|
Records Committee Review for rare bird sighting of Pacific Loon at Amana Lake, 1981
|
Administrative records Clippings (information artifacts) Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1981-04-28
|
1993-08-16
|
Rare birds documentation form
|
Records Committee review for a Pacific Loon at Amana Lake in Iowa County, IA on April 28, 1981. Includes a record review document with votes, an Iowa Bird Life article, and three documentation forms submitted to the committee. The bird was initially reported as an Arctic Loon but was found to be a Pacific Loon.
|
Bendorf, Carl J.
|
Pacific Loon
|
Lily Pond
|
Amana Lake-- near Amana, IA. in Iowa County
|
On water of Amana Lake. Man-made lake and very shallow-less than four feet anywhere.
|
The documentation form by Carl J. Bendorf is the earliest and the one that forms the basis of this record. Other documentation forms by Michael C. Newlon and Thomas H. Kent were submitted later. Other observers include Cal Knight, Bernie Knight, Tom Staudt, James Huntington, Carl Bendorf, James Sandrock, Lanny Haldy, Tom Shires, and Carol Newlon. | Elimination of similar species: Common Loon is eliminated. No neck ring was present. Distinct lighter color on back on head and upper neck is not like solid head color of loon. Red-throated Loon is eliminated by presence of distinctive light patches on back. | The original documentation form event lasted from 17:30:00/19:00:00.
|
Iowa Ornithologists' Union | MS 166
|
7
|
7
|
|
Records Committee review for rare bird sighting of Black Scoter at Le Claire, 1984
|
Administrative records Clippings (information artifacts) Field notes Forms (documents)
|
Bird watching Ornithology Ornithology--Societies, etc
|
1984-10-26
|
1993-09-01
|
Rare birds documentation form
|
Records Committee review of six Black Scoters at Le Claire in Scott County, IA on October 26, 1984. Includes a record review document with votes, an article in Iowa Bird Life, and four documentation forms submitted to the committee.
|
Bendorf, Carl J.
|
Black Scoter
|
Le Claire
|
1 mi. N. of LeClaire
|
In Mississippi River. Few other live birds in area, but many decoys set out by hunters.
|
The documentation form by Carl J. Bendorf is the earliest and the one that forms the basis of this record. Other documentation forms by Robert K. Myers, Francis L. Moore, and Gerald White were submitted later. Other observers include Peter C. Petersen and Jim Fuller. | Elimination of similar species: Surf Scoter is another all dark bird, but it would have a much larger bill that extends on the same angle as a flattened forehead. The definite gray cheek and throat are not present on Surf Scoter. Female Ruddy ducks should be much browner and again have a flattened forehead in line with a larger bill. Black wings eliminate White-winged Scoter. | The original documentation form event lasted from 10:15:00/10:35:00.
|
Iowa Ornithologists' Union | MS 166
|
8
|
20
|
|
Records Committee review for rare bird sighting for Smith's Longspur south of Nichols, 1983
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1983-03-09
|
1993-09-01
|
Rare birds documentation form
|
Records Committee review for twenty Smith's Longspurs south of Nichols in Muscatine County, IA on March 9, 1983. Includes a record review document with votes and a documentation form submitted to the committee.
|
Bendorf, Carl J.
|
Smith's Longspur
|
Nichols
|
4.7 miles south of Nichols, Muscatine Co. along HWY 70.
|
Area of short grass with partly frozen standing water at edge of larger cultivated fields
|
The documentation form by Carl J. Bendorf is the only one submitted and forms the basis of this record. | Elimination of similar species: Other longspurs and Vesper Sparrow eliminated by distinct buff color of breast and by face pattern. | The original documentation form event lasted from 15:50:00/16:05:00.
|
Iowa Ornithologists' Union | MS 166
|
13
|
42
|
|
Rare bird documentation form for Long-tailed Duck at Fort Madison, 1982
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1982-11-17
|
1982-12-01
|
Rare birds documentation form
|
Rare bird documentation form for a Long-tailed Duck at Ford Madison in Lee County, IA on November 17, 1982.
|
Bendorf, Carl J.
|
Long-tailed Duck
|
Fort Madison
|
In Mississippi River, just offshore in downtown Ft. Madison, Lee Co.
|
Bird was swimming very close to shore in Mississippi River
|
The documentation form by Carl J. Bendorf is the only one submitted and forms the basis of this record. | Elimination of similar species: The female Ruddy Duck has a pointed tail and a light cheek patch, but the cheek patch in the Ruddy does not extend above the eye. | The original documentation form event lasted from 12:30:00/13:00:00.
|
Iowa Ornithologists' Union | MS 166
|
33
|
14
|
|
Rare bird documentation form for Cerulean Warbler at Amana Woods, 1981
|
Field notes
|
Birds--Behavior Birds--Identification Birdsongs Ornithology Rare birds
|
1981-04-30
|
1981-05-04
|
Rare birds documentation form
|
Rare bird documentation form for a Cerulean Warbler at Amana Woods north of Homestead in Iowa County, IA on April 30, 1981.
|
Bendorf, Carl J.
|
Cerulean Warbler
|
Amana Woods
|
one mile north of Homestead, IA. Iowa County "Amana Woods"
|
General: Edge of extensive decidous [sic] woods, moving about in upper story Specific: of large trees along dirt road.
|
The documentation form by Carl J. Bendorf is the only one submitted and forms the basis of this record. | Elimination of similar species: This is only bird I know of with the narrow dark band across otherwise clear throat and underside. This band was seen very clearly. | The original documentation form event lasted from 07:50:00/07:55:00.
|
Iowa Ornithologists' Union | MS 166
|
35
|
33
|
|
Rare bird documentation form for White-faced Ibis at Cone Marsh, 1990
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1990-04-23
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for two White-faced Ibises at Cone Marsh in Louisa County, IA on April 23, 1990.
|
Bendorf, Carl J.
|
White-faced Ibis
|
Cone Marsh Wildlife Management Area
|
Cone Marsh, Louisa Co.
|
|
The documentation form by Carl J. Bendorf is the only one submitted and forms the basis of this record. Other observers include Ken Lowder, Ann Barker, and John Daniels. | The original documentation form event lasted from 17:40:00/17:50:00 and 18:40:00/18:45:00.
|
Iowa Ornithologists' Union | MS 166
|
32
|
25
|
|
Rare bird documentation form for Sandhill Crane north of Amana, 1987
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1987-02-10
|
1987-02-15
|
Rare birds documentation form
|
Rare bird documentation form for a Sandhill Crane north of Amana in Iowa County, IA on February 10, 1987.
|
Bendorf, Carl J.
|
Sandhill Crane
|
Amana
|
1 Mile N. of Amana
|
Large corn stubble field in open country
|
The documentation form by Carl J. Bendorf is the only one submitted and forms the basis of this record. Other observers include Lanny Haldy and A. Lockridge. | Elimination of similar species: Whooping Crane eliminate [sic] by gray overall color and lack of noticeable black in wings. Great Blue Heron elimiated [sic] by red patch on forehead and bustle-like tail. | The original documentation form event lasted from 16:15:00/16:20:00.
|
Iowa Ornithologists' Union | MS 166
|
34
|
1
|
|
Rare bird documentation form for Northern Goshawk at Green Castle, 1983
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1983-12-17
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Northern Goshawk at Green Castle in Johnson County, IA on December 17, 1983.
|
Bendorf, Carl J.
|
Northern Goshawk
|
Green Castle (historical)
|
NW Johnson Co. (just SW of Greencastle Corner)
|
Open field with scattered small trees, brush)
|
The documentation form by Carl J. Bendorf is the only one submitted and forms the basis of this record. Other observers include Lanny Haldy, Dan Ray, Randy Graesser, and all of the Amanas. | Elimination of similar species: Cooper's Hawk eliminated by large size and light(not rusty) underparts. | The original documentation form event lasted from 10:30:00/10:35:00.
|
Iowa Ornithologists' Union | MS 166
|
33
|
25
|
|
Rare bird documentation form for Scissor-tailed Flycatcher northeast of East Amana, 1981
|
Field notes
|
Bird watching Birds--Identification Ornithology Rare birds
|
1981-04-26
|
1981-05-28
|
Rare birds documentation form
|
Rare bird documentation form for a Scissor-tailed Flycatcher northeast of East Amana in Iowa County, IA on April 26, 1981.
|
Bendorf, Carl J.
|
Scissor-tailed Flycatcher
|
East Amana
|
2miles [sic] NE of East Amana, IA. Iowa County
|
Along dry sandy road in open rolling pastureland with scattered small to large trees. Across road was large open grassy field.
|
The documentation form by Carl J. Bendorf is the only one submitted and forms the basis of this record. Other observers include Lanny Haldy, Randy Graesser, Tom Kent, Tom Shires, and Rick Hollis. | Elimination of similar species: Western Kingbird- would not have scarlet wing linings and distinct scissor type tail. This was an immature bird as an adult scissor-tail would have a tail twice as long as the body. There might also be more indication of red on the shoulder beside the folded wing. | The original documentation form event lasted from 13:00:00/14:30:00.
|
Iowa Ornithologists' Union | MS 166
|
34
|
73
|
|
Rare bird documentation form for Worm-eating Warbler at Amana Woods, 1981
|
Field notes
|
Birds--Behavior Birds--Identification Birdsongs Ornithology Rare birds
|
1981-06-21
|
1981-07-11
|
Rare birds documentation form
|
Rare bird documentation form for a Worm-eating Warbler at Amana Woods north of Homestead in Iowa County, IA on June 21, 1981.
|
Bendorf, Carl J.
|
Worm-eating Warbler
|
Amana Woods
|
1.5 miles north of Homestead, IA. "Amana Woods"
|
General: Extensive deciduous woodland. Specific: Small wooded valley with some clearings and small stream.
|
The documentation form by Carl J. Bendorf is the only one submitted and forms the basis of this record. Other observers include Rick Hollis and Lanny Haldy. | Elimination of similar species: Other warblers or viroes [sic] eliminated by bold striping on crown. Chipping sparrow eliminated by habitat and greenish color and head stripes. | The original documentation form event lasted from 07:50:00/08:15:00.
|
Iowa Ornithologists' Union | MS 166
|
35
|
36
|
|
Rare bird documentation form for Alder Flycatcher at Hickory Hill Park in Iowa City, 1982
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1982-06-03
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for an Alder Flycatcher at Hickory Hill Park in Iowa City in Johnson County, IA on June 3, 1982.
|
Bendorf, Carl J.
|
Alder Flycatcher
|
Hickory Hill Park
|
Hickory Hill Park, Iowa City, Johnson County
|
Thick stand of medium size (15'-40') deciduous trees with a dense, moist understory [sic] of shrubs. At the edge of large woods.
|
The documentation form by Carl J. Bendorf is the only one submitted and forms the basis of this record. Other observers include Thomas H. Kent. | Elimination of similar species: Discussed above. [From description field] The quality and timbre of the call were very similar to that of a Willow Flycatcher. I heard a number of Willow's this spring, and while the quality of the note was similiar, [sic] the form of it was much different. Whereas, the Willow begins with an explosive first note (or syllable) and concludes with an emphatic second and lower pitched note, the bird now calling seemed to be one slurred 'weee-ooo'. This note was quite brief, but it began and immediately slurred up and then back down in pitch. Obviously, at this point I was thinking of Alder Flycatcher. | The original documentation form event lasted from 10:50:00/10:55:00.
|
Iowa Ornithologists' Union | MS 166
|
34
|
67
|
|
Rare bird documentation form for Franklin's Gull at Coralville Reservoir, 1990
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1990-12-16
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Franklin's Gull at Coralville Reservoir in Johnson County, IA on December 16, 1990.
|
Bendorf, Carl J.
|
Franklin's Gull
|
Coralville Lake
|
Coralville Reservoir, Johnson County
|
|
The documentation form by Carl J. Bendorf is the only one submitted and forms the basis of this record. Other observers include Thomas Kent, Randy Graesser, John Van Ryebroek, Carol Thompson, and Dick Tetrault. | Elimination of similar species: Laughing Gull: White in wingtips of adult gull doesn't fit. Bonaparte's Gull: Mantel color seemed too dark for adult bird and white tertial mark on mantel indicates a white trailing edge to wing which doesn't fit. Common Black-headed Gull: same problems as with Bonaparte's. | The original documentation form event lasted from 13:00:00/13:30:00.
|
Iowa Ornithologists' Union | MS 166
|
34
|
32
|
|
Rare bird documentation form for Bohemian Waxwing at Iowa City, 1984
|
Field notes
|
Birds--Behavior Birds--Identification Ornithology Rare birds
|
1984-11-11
|
1984-11-15
|
Rare birds documentation form
|
Rare bird documentation form for a Bohemian Waxwing at Iowa City in Johnson County, IA on November 11, 1984.
|
Bendorf, Carl J.
|
Bohemian Waxwing
|
Iowa City
|
1 mile w. of #218 on county F20 County: Johnson
|
Along roadside lined with medium trees and a hillside with lots of bushes and shrubs. Many Cedar Waxwings feeding in same area.
|
The documentation form by Carl J. Bendorf is the only one submitted and forms the basis of this record. Other observers include Thomas Kent, Thomas Staudt, and Richard Hollis. | Elimination of similar species: The size, wing markings, chestnut undertail, and call note were considered in direct comparison to nearby Cedar Waxwings. | The original documentation form event lasted from 10:35:00/10:40:00.
|
Iowa Ornithologists' Union | MS 166
|
35
|
16
|
|
Rare bird documentation form for Prairie Warbler at Lansing Wildlife Area, 1982
|
Field notes
|
Birds--Identification Birdsongs Ornithology Rare birds
|
1982-06-19
|
N/A
|
Rare birds documentation form
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Rare bird documentation form for a Prairie Warbler at Lansing Wildlife Area in Allamakee County, IA on June 19, 1982.
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Bendorf, Carl J.
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Prairie Warbler
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Lansing Wildlife Management Area
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Lansing Wildlife Area, one mile west and three miles north of Lansing, Iowa, Allamakee County.
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Grassy hillside with scattered bushes and small trees. Bordering on edge of deciduous woodland.
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The documentation form by Carl J. Bendorf is the only one submitted and forms the basis of this record. Other observers include Thomas Kent, Thomas Staudt, Bob Myers, and Francis Moore. | Elimination of similar species: Peterson's Field Guide (2nd edition) describes the Prairie as ' the only common Warbler with yellow underparts striped with black in which the stripings are confined to the sides.' He also states that no other warbler has the chestnut streakings on the upper back. | The original documentation form event lasted from 08:05:00/09:00:00.
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Iowa Ornithologists' Union | MS 166
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35
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30
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Rare bird documentation form for Hooded Warbler at Amana Woods, 1982
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Field notes
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Birds--Behavior Birds--Identification Birdsongs Ornithology Rare birds
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1982-06-04
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1982-07-30
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Rare birds documentation form
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Rare bird documentation form for a Hooded Warbler at Amana Woods in Iowa County, IA on June 4, 1982.
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Bendorf, Carl J.
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Hooded Warbler
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Amana Woods
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Amana Woods. Iowa County. One mile east of HWY 149 on a dirt road immediately south of Iowa River.
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Moist deciduous mature woodland with much undergrowth
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The documentation form by Carl J. Bendorf is the only one submitted and forms the basis of this record. Other observers include Tom Kent, Tom Staudt, and Lanny Haldy. | Elimination of similar species: Female Wilson's Warbler is eliminated by the observation of two large white areas on the undertail surface | The original documentation form event lasted from 12:40:00/12:50:00.
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Iowa Ornithologists' Union | MS 166
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35
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41
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Rare bird documentation form for Ross' Goose at Forneys Lake, 1984
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Field notes
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Birds--Identification Ornithology Rare birds
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1984-03-25
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N/A
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Rare birds documentation form
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Rare bird documentation form for a Ross' Goose at Forneys Lake in Fremont County, IA on March 25, 1984.
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Bendorf, Carl J.
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Ross's Gull
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Forneys Lake
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Forney's Lake
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Large open lake, packed with migrating waterfowl especially snow geese.
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The documentation form by Carl J. Bendorf is the only one submitted and forms the basis of this record. Other observers include Tom Kent, Tom Staudt, and Ross Silcock. | Elimination of similar species: This bird was about 2/3 size of the Snows. Noticeably shorter relative neck length. Bill much smaller and relatively much stubbier. Forehead was very rounded, not angled in line with the bill like the Snow Geese. Bill color suggested slight darkening at base. | The original documentation form event lasted from 09:30:00/09:35:00.
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Iowa Ornithologists' Union | MS 166
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32
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28
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