|
Records Committee review for rare bird Sighting of Pacific Loon at Red Rock Reservoir, 1996
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-11-03
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Pacific Loon at Red Rock Reservoir in Marion County, IA on November 3, 1996. Includes a record review document with votes and four documentation forms submitted to the committee.
|
Johnson, Ann
|
Pacific Loon
|
Lake Red Rock
|
Whitebreast Boat Ramp, Red Rock Reservoir, Marion Co., IA
|
Open lake
|
The documentation form by Ann Johnson is the earliest and the one that forms the basis of this record. Other documentation forms by Thomas H. Kent, Jim Fuller, and Chris Edwards were submitted later. | Elimination of similar species: The apparent size differential, bill size and clean line to the neck eliminated Common and Yellow-billed Loon. Red-throated is approximately the same size but the bill appears upturned because of the angular shape of the lower edge. Red-throated also has a head lighter than the body. A chinstrap would not be seen on any other species. Grebes were eliminated by thickness of neck and general jizz. | The original documentation form event lasted from 13:30:00/13:40:00.
|
Iowa Ornithologists' Union | MS 166
|
7
|
7
|
|
Records Committee review for rare bird sighting of Pacific Loon at Saylorville Reservoir, 1990
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1990-11-10
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review for a Pacific Loon at Saylorville Reservoir in Polk County, IA on November 10, 1990. Includes a record review document with votes and a documentation forms submitted to the committee.
|
Johnson, Ann
|
Pacific Loon
|
Jester Park
|
Jester Park, Saylorville Reservoir, Polk Co., IA
|
Open water
|
The documentation form by Ann Johnson is the earliest and the one that forms the basis of this record. Other observers include Reid Allen, Pam Allen, Eugene Armstrong, and Eloise Armstrong. | Elimination of similar species: Red-throated and Yellow-billed Loons could both be eliminated by the horizontal head and bill. This bird also showed a more rounded head and definite black/white contrast which was lacking in the Red-throated Loon I had observed six days earlier. Common Loon was eliminated by combination of size, smaller bill, distinct line separating white and black feathers, and ultimately by the chinstrap. | The original documentation form event lasted from 12:10:00/12:30:00.
|
Iowa Ornithologists' Union | MS 166
|
7
|
7
|
|
Records Committee review for rare bird sighting for Hoary Redpoll at Norwalk, 1996
|
Administrative records Clippings (information artifacts) Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-02-03
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Hoary Redpoll at Norwalk in Warren County, IA on February 3, 1996. Includes a record review document with votes, an article in Iowa Bird Life, several photographs, and four documentation forms submitted to the committee.
|
Johnson, Ann
|
Hoary Redpoll
|
Norwalk
|
Feeding station at 532 120th Avenue, Norwalk, Warren County, IA
|
|
The documentation form by Ann Johnson is the earliest and thels, one an adult male and the other a probable adult female, were present on the same day. Oftentimes all three birds were on the feeder concurrently which allowed for a number of comparisons. Characteristics which differentiated this bird from the Common Redpolls and identified it as a Hoary Redpoll: underlying color was lighter than the warmer, darker brown of the Commons, More extensive white feather edgings to the secondaries, tertials, and scapulars than shown on Commons, Broad white edge to the greater coverts, Buffy face and strong white supercilliary, Smaller red cap, Broken and shorter flank streaking, Short, triangular bill with resulting pushed in face, Nearly white undertail covers (Although brightly colored adult male Common Redpolls may have diminished markings on their undertail coverts, this bird had no red except for the cap.) | The original documentation form event lasted from 07:30:00 and periodically throughout the day. one that forms the basis of this record. Other documentation forms by Jim Sinclair, Stephen Dinsmore, and Jim Fuller were submitted later. Other observers include Rick Trieff and Jane Fuller . | Elimination of similar species: The only species this bird could be confused with is Common Redpoll. Two individua
|
Iowa Ornithologists' Union | MS 166
|
14
|
16
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Red Rock Reservoir Dam, 1991
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1991-03-14
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review for two Thayer's Gulls at Red Rock Reservoir Dam in Marion County, IA on March 14, 1991. Includes a record review document with votes and two documentation forms submitted to the committee.
|
Johnson, Ann
|
Thayer's Gull
|
Red Rock Dam
|
Below dam, Red Rock Reservoir, Marion Co., IA
|
Gravel bar and open river
|
The documentation form by Ann Johnson is the one that forms the basis of this record. Another documentation form by Diane Porter was submitted. Other observers include Beth Brown and Tim Schantz. | Elimination of similar species: Herring Gull was eliminated by the light and uniform body color, brown as opposed to blackish primaries and tail band, bill and head structure, and lack of any color to the underside of the primaries. Iceland Gull was eliminated based on the darker secondaries and wide, brown tail band. | The original documentation form event lasted from 10:20:00/10:40:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Iceland Gull at Credit Island, 1993
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1993-02-14
|
1995-07-08
|
Rare birds documentation form
|
Records Committee review for an Iceland Gull at Credit Island in Scott County, IA on February 14, 1993. Includes a record review document with votes and a documentation form submitted to the committee.
|
Johnson, Ann
|
Iceland Gull
|
Credit Island
|
Credit Island, Davenport, Scott County, IA
|
Frozen lagoon with small amount of open water
|
The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: Although the duskiness on the face had somewhat of a "hooded" effect, any of the hooded gulls could be eliminated by the bill structure. The pale primaries eliminated all but the white-winged gulls - Glaucous, Iceland, and possibly Thayer's. Glaucous can be eliminated by size and bill color. Thayer's was eliminated because of: 1) overall gray-white appearance; 2) the lack of any secondary bar; and 3) the checkered tertials. Problems with the record are the duskiness on the face and the narrow dark edging to the outer primaries from below. These two characteristics may well indicate an Iceland/Thayer's intergrade. | The original documentation form event lasted from 13:15:00/13:40:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
4
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Red Rock Dam, 1991
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1991-10-24
|
1993-07-17
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at Red Rock Dam in Marion County, IA on October 24, 1991. Includes a record review document with votes and a documentation form submitted to the committee.
|
Johnson, Ann
|
Thayer's Gull
|
Red Rock Dam
|
Below dam, Red Rock Reservoir, Marion Co., IA
|
Gravel bar and open river
|
The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: Herring Gull was eliminated by the light and uniform body color, brown as opposed to blackish primaries and tail band, lack of a window from above, and lack of any color to the underside of the primaries. Iceland Gull was eliminated based on the darker secondaries and wide, brown tail band. | The original documentation form event lasted from 16:50:00/17:15:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull at North Overlook Beach at Red Rock Reservoir, 1989
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1989-11-06
|
1993-08-06
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at North Overlook Beach at Red Rock Reservoir in Marion County, IA on November 6, 1989. Includes a record review document with votes and a documentation form submitted to the committee.
|
Johnson, Ann
|
Thayer's Gull
|
North Overlook Park
|
North Overlook Beach, Lake Red Rock, Marion Co, IA
|
Sandy beach on man-made reservoir
|
The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: Iceland Gull - basically eliminated by darker color and narrow chocolate edges to outer primaries. Kumlien's - presence of tail band would seem to eliminate Herring - eliminated by combination of: structure and size of body and bill; shape of head; more uniform coloration above, especially lighter colored primaries; light flight feathers from below contrasting with darker wing lining; lighter color of tail band | The original documentation form event lasted from 10:30:00/10:35:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Rare bird documentation form for Red-necked Grebe at Dale Maffitt Reservoir, 1990
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1990-03-11
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Red-necked Grebe at Dale Maffit Reservoir in Dallas County, IA on March 11, 1990.
|
Johnson, Ann
|
Red-necked Grebe
|
Dale Maffitt Reservoir
|
Dale Maffitt Reservoir, Dallas Co., IA
|
Open water on man-made reservoir; near weedy shoreline
|
The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: Loon were eliminated because, although the neck was somewhat thick, it was longer than a loon. The head was also a bit flatter and it rode higher in the water, just giving a different posture than a loon. Plumage details did not fit any loon. Western Grebe- Thicker neck, some color on neck and white cheek eliminated this one Pied-billed Grebe - Size, bill shape, and other features wrong. Horned/Eared Grebes - Although it gave much the same appearance as a horned grebe, size and bill eliminated both. | The original documentation form event lasted from 16:34:00/16:42:00.
|
Iowa Ornithologists' Union | MS 166
|
32
|
13
|
|
Rare bird documentation form for Red-necked Grebe at Jester Park, 1990
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1990-10-28
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Red-necked Grebe at Jester Park at Saylorville Lake in Polk County, IA on October 28, 1990.
|
Johnson, Ann
|
Red-necked Grebe
|
Jester Park
|
Jester Park, Saylorville Lake, Polk Co., Iowa
|
Open water
|
The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: Loons were eliminated on the basis of thin neck and posture. Cormorants were eliminated because of straight posture, lack of throat patch, and basic plumage configurations. The bird was obviously larger than a Pied-billed Grebe which would, in addition to the yellow bill, eliminate all but Western Grebe. Western Grebe would have looked much larger than the various waterfowl nearby and would not have shown any rust color on the neck. | The original documentation form event lasted from 12:45:00/13:05:00.
|
Iowa Ornithologists' Union | MS 166
|
32
|
13
|
|
Records Committee review for rare bird sighting of Black-headed Gull at Red Rock Reservoir, 1996
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1996-11-03
|
2000-11-22
|
Rare birds documentation form
|
Records Committee review for a Black-headed Gull at Red Rock Reservoir in Marion County, IA on November 3, 1996. Includes a record review document with votes and a documentation form submitted to the committee.
|
Johnson, Ann
|
Black-headed Gull
|
Lake Red Rock
|
Red Rock Reservoir, Marion Co., IA
|
Large lake
|
The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: Only one other North American gull has a leading white edge to the upperwing- Bonaparte's. Size and jizz helped differentiate this bird from the Bonaparte's, but the dark underwing eliminated the smaller species. | The original documentation form event lasted from 12:30:00/12:33:00.
|
Iowa Ornithologists' Union | MS 166
|
10
|
21
|
|
Rare bird documentation form for Palm Warbler in Greenfield Township in Warren County, 1991
|
Field notes
|
Birds--Behavior Birds--Identification Ornithology Rare birds
|
1991-08-17
|
1991-08-18
|
Rare birds documentation form
|
Rare bird documentation form for a Palm Warbler in Greenfield Township in Warren County, IA on August 17, 1991.
|
Johnson, Ann
|
Palm Warbler
|
Greenfield Township
|
My yard in northern Warren County, Iowa
|
Open riparian edge
|
The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: Other yellow rumped warblers were eliminated by the bright yellow undertail coverts contrasting with the buffy breast and belly. | The original documentation form event lasted from 11:20:00/11:25:00.
|
Iowa Ornithologists' Union | MS 166
|
35
|
31
|
|
Rare bird documentation form for Black-legged Kittiwake at Red Rock Dam, 1990
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1990-12-24
|
1990-12-26
|
Rare birds documentation form
|
Rare bird documentation form for a Black-legged Kittiwake at Red Rock Dam in Marion County, IA on December 24, 1990.
|
Johnson, Ann
|
Black-legged Kittiwake
|
Red Rock Dam
|
below dam, Red Rock Reservoir, Marion Co., IA
|
Open water
|
The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: Red-legged Kittiwake would be the only other gull with a semblance of collar at this time of year. It is eliminated by the black bar on the wings and back and the black tailband. | The original documentation form event lasted from 15:00:00/15:15:00.
|
Iowa Ornithologists' Union | MS 166
|
34
|
40
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Red Rock Dam, 1988
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1988-12-13
|
1993-08-04
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at Red Rock Dam in Marion County, IA on December 13, 1988. Includes a record review document with votes and a documentation form submitted to the committee.
|
Johnson, Ann
|
Thayer's Gull
|
Red Rock Dam
|
below dam - Lake Red Rock, Marion Co, IA
|
dam on Des Moines River forming reservoir; open river with islands
|
The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: Ring-billed eliminated by size and leg color. Herring eliminated by head shape and eye color. Iceland eliminated by eye color, mantle color, and size and shape of head. | The original documentation form event lasted from 15:01:00/15:03:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of White-tailed Kite at Norwalk, 1991
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1991-05-13
|
2000-11-29
|
Rare birds documentation form
|
Records Committee review for a White-tailed Kite at Norwalk in Warren County, IA on May 13, 1991. Includes a record review document with votes and a documentation form submitted to the committee. The original documentation reports the bird as a Black-shouldered Kite
|
Johnson, Ann
|
White-tailed Kite
|
Norwalk
|
My home in northern Warren County, Iowa
|
Agricultural area with some riparian edges
|
The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: Size, shape and flight pattern initially eliminated buteos and accipiters. I seriously considered both Northern Harrier and Peregrine Falcon. Until the bird got close enough to see the underparts, Peregrine was the most likely candidate based on the straight trailing edge of the wing, although I have never seen a Peregrine glide so effortlessly with few wing strokes taken. The flight pattern and white head made me aware that this was probably a kite. Of the other possibilities for this bird, all were eliminated by the white tail with no markings. Only a Ferruginous Hawk would share this characteristic. The black carpal spots on white wing linings were somewhat reminiscent of an Osprey, but other patterns, size, and flight pattern are not consistent. Although Northern Harrier males look very white from below, their heads are dark not white, and only the outer primary tips are dark as opposed to this bird's entire primary area. The tundra race of the Peregrine Falcon would appear light colored on the head, but would also show more dark markings underneath than this bird had. Mississippi Kite looks fairly white headed at a distance, but the underparts and tail are gray. | The original documentation form event lasted from 18:05:00/18:07:00.
|
Iowa Ornithologists' Union | MS 166
|
8
|
25
|
|
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.
|
Iowa Ornithologists' Union | MS 166
|
34
|
35
|
|
Records Committee review for rare bird sighting of Laughing Gull at Saylorville Dam, 1993
|
Administrative records Field notes Photographs
|
Bird watching Ornithology Ornithology--Societies, etc
|
1993-09-18
|
1995-07-08
|
Rare birds documentation form
|
Records Committee review for a Laughing Gull at Saylorville Dam in Polk County, IA on September 18, 1993. Includes a record review document with votes, a photograph, and a documentation form submitted to the committee.
|
Johnson, Ann
|
Laughing Gull
|
Saylorville Dam
|
Below Saylorville Dam, Polk County, IA
|
Fast moving river with many small fish
|
The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: The body and bill structure eliminated all but hooded gulls and the brown plumage indicated a first year bird. Size close to Ring-billed, in addition to plumage already described, eliminated some of the smaller hooded gulls. The most likely candidate for confusion would be the Franklin's Gull. Juvenile Franklin's shows a hooded pattern early in development rather than a brown wash on the head. Franklin's tail band would also be incomplete with white feathers showing on the outer edge. It would also show fewer dark primaries, with the inner flight feathers more approximating the mantle and inner wing color. No other small gull has this characteristic. | The original documentation form event lasted from 11:45:00/12:10:00 and 15:30:00/14:00:00 [sic].
|
Iowa Ornithologists' Union | MS 166
|
10
|
18
|
|
Rare bird documentation form for Buff-breasted Sandpiper at Sandpiper Beach at Saylorville Reservoir, 1990
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1990-10-16
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Buff-breasted Sandpiper at Sandpiper Beach at Saylorville Reservoir in Polk County, IA on October 16, 1990.
|
Johnson, Ann
|
Buff-breasted Sandpiper
|
Sandpiper Recreation Area
|
Sandpiper Beach, Saylorville Reservoir, Polk Co., IA
|
sandy beach with short greasy area nearby
|
The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: The larger size and lack of facial pattern and tail pattern in flight eliminated the Baird's Sandpiper. A juvenile Reeve would have been nearer the size of the nearby Killdeer; a Ruff even larger. Both would have a thicker bill than this bird. Upland Sandpiper would have been larger and not had the buffy color. | The original documentation form event lasted from 16:35:00/16:45:00.
|
Iowa Ornithologists' Union | MS 166
|
34
|
25
|
|
Rare bird documentation form for Black-legged Kittiwake at Lake Red Rock, 1988
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1988-11-27
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Black-legged Kittiwake at Lake Red Rock in Marion County, IA on November 27, 1988.
|
Johnson, Ann
|
Black-legged Kittiwake
|
Lake Red Rock
|
below dam - Lake Red Rock, Marion Co, IA
|
dam on Des Moines River forming reservoir; open river with islands
|
The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: The only other gull with a black collar, the red-legged kittiwake, was eliminated because of the black wing strip and tail band. | The original documentation form event lasted from 16:02:00/16:48:00.
|
Iowa Ornithologists' Union | MS 166
|
34
|
40
|
|
Rare bird documentation form for Brewster's Warbler at Greenfield Township in Warren County, 1989
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1989-05-11
|
1989-05-25
|
Rare birds documentation form
|
Rare bird documentation form for a Brewster's Warbler at Greenfield Township in Warren County, IA on May 11, 1989.
|
Johnson, Ann
|
Vermivoras
|
Greenfield Township
|
My Yard - small acreage in northern Warren County, IA
|
Mixed open woods and field edge with creek and many shrubs
|
The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: The parent birds were eliminated because of the totally white underparts eliminating the blue-winged and the lack of dark throat and narrower eye stripe eliminating the golden-winged. The golden yellow cap reminded me of a chestnut-sided but the lack of streaking on the back and absence of any markings on the side eliminated this bird also. The combination of field marks leaves the Brewster's as the only logical possibility. | The original documentation form event lasted from 07:00:00/07:00:00.
|
Iowa Ornithologists' Union | MS 166
|
35
|
17
|
|
Rare bird documentation form for Prairie Falcon at Swan Wildlife Refuge, 1991
|
Field notes
|
Birds--Identification Ornithology Rare birds
|
1991-10-27
|
N/A
|
Rare birds documentation form
|
Rare bird documentation form for a Prairie Falcon at Swan Wildlife Refuge in Marion County, IA on October 27, 1991.
|
Johnson, Ann
|
Prairie Falcon
|
Swan Wildlife Refuge
|
Swan Wildlife Refuge, Warren County [incorrect county], IA
|
Overlook of river bottom, waterfowl refuge
|
The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: The pointed wings and powerful, direct flight identified the bird as a falcon. Size eliminated all but the more likely Peregrine. The pale color and narrow facial markings with light supercilliary all but eliminated the Peregrine. The brief look at the black on the underwing confirmed this. | The original documentation form event lasted from 15:50:00/15:51:00.
|
Iowa Ornithologists' Union | MS 166
|
33
|
35
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Saylorville Dam, 1988
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1988-12-30
|
1993-08-04
|
Rare birds documentation form
|
Records Committee review for two Thayer's Gulls at Saylorville Dam in Polk County, IA on December 30, 1988. Includes a record review document with votes and a documentation form submitted to the committee.
|
Johnson, Ann
|
Thayer's Gull
|
Saylorville Dam
|
Saylorville Lake, Polk Co., IA
|
dam on Des Moines River forming reservoir
|
The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: The primary identification was done through the size and shape of the head. Other similar gulls do not share this "dove head." The adult was confirmed by the silvery underwings, not shared by similarly gray-mantled gulls, and the first year bird was confirmed by the uniformity of its body color. | The original documentation form event lasted from 15:40:00/15:55:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Saylorville Dam, 1989
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1989-01-28
|
1993-08-05
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at Saylorville Dam in Polk County, IA on January 28, 1989. Includes a record review document with votes and a documentation form submitted to the committee.
|
Johnson, Ann
|
Thayer's Gull
|
Saylorville Dam
|
Saylorville Lake, Polk Co., IA
|
dam on Des Moines River forming reservoir
|
The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: The primary identification was done through the size and shape of the head. Other similar gulls do not share this "dove head." The bird was confirmed by the silvery underwings and very little dark coloring on the upper side of the primaries, characteristics not shared by similarly gray-mantled gulls. | The original documentation form event lasted from 08:40:00/08:40:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
|
|
Records Committee review for rare bird sighting of Thayer's Gull at Bettendorf, 1989
|
Administrative records Field notes
|
Bird watching Ornithology Ornithology--Societies, etc
|
1989-02-18
|
1993-08-05
|
Rare birds documentation form
|
Records Committee review for a Thayer's Gull at Bettendorf in Scott County, IA on February 18, 1989. Includes a record review document with votes and a documentation form submitted to the committee.
|
Johnson, Ann
|
Thayer's Gull
|
Bettendorf
|
Mississippi River, Bettendorf, Scott Co., IA
|
seen from shore just south of I80 in area of cabins
|
The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: The primary identification was done through the size and shape of the head. The bird was lighter in color than the first-winter herring gulls in the same area and the wing pattern on both upper and lower sides eliminated herring, ring-billed and Iceland gulls. | The original documentation form event lasted from 12:42:00/12:42:00.
|
Iowa Ornithologists' Union | MS 166
|
11
|
3
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Records Committee review for rare bird sighting of Ferruginous Hawk at Red Rock Reservoir, 1989
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Administrative records Field notes
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Bird watching Ornithology Ornithology--Societies, etc
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1989-01-02
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1993-08-05
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Rare birds documentation form
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Records Committee review of a Ferruginous Hawk at Red Rock Reservoir in Marion County, IA on January 2, 1989. Includes a record review document with votes and a documentation form submitted to the committee.
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Johnson, Ann
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Ferruginous Hawk
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Lake Red Rock
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Lake Red Rock, Marion Co, IA
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pasture with wooded draw to the south
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The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: This was a classic case of delayed reaction as I began sorting through in my mind as I drove down the road. The large size and bulk of the bird, plus the broad, rounded tail made it an obvious buteo. After double-checking all phases of the rough-legged hawk in Clark's Hawks, I once again eliminated rough-leg because of the nearly all white underparts. However, redtail wasn't fitting either, even a light phase, and a few miles down the road the ferruginous crossed my mind. I pulled off the road, made a few notes, and began researching with the guides at hand. The most troublesome field mark was the 'white tail with gray band.' I have seen numerous redtails give the white rump appearance but none have had the distinctive white tail/gray terminal band. There was absolutely no dark patagial marking on the underwing. The combination of field marks (or lack thereof) would seem to approach an immature Krider's redtail. I eliminated this bird because of the appearance of one, wide gray tail band and the more uniform coloring of the body - very little white mottling. Although I wish I'd had a longer look, I came to the conclusion that the combination of what I had observed pointed toward an immature ferruginous hawk. | The original documentation form event lasted from approximately 09:00:00/09:01:00.
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Iowa Ornithologists' Union | MS 166
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9
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1
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Rare bird documentation form for Eastern Phoebe at Cherry Glen Recreation Area at Saylorville Lake, 1988
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Field notes
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Birds--Identification Ornithology Rare birds
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1988-11-12
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1988-11-26
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Rare birds documentation form
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Rare bird documentation form for an Eastern Phoebe at Cherry Glen Recreation Area at Saylorville Lake in Polk County, IA on November 12, 1988.
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Johnson, Ann
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Eastern Phoebe
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Cherry Glen Recreation Area
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Cherry Glen, Saylorville Lake, Polk Co., IA
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Edge of woods near open field along lakeshore
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The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. | Elimination of similar species: Yellow wash, lack of wing bars, and tail bobbing eliminated the eastern wood-pewee. | The original documentation form event lasted from 08:51:00/08:51:00.
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Iowa Ornithologists' Union | MS 166
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34
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69
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