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Rare bird documentation form for White-faced Ibis at Zirbel Slough, 1991
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Field notes Forms (documents)
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Birds--Identification Ornithology Rare birds
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1991-05-22
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1991-05-23
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Rare birds documentation form
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Rare bird documentation form for a White-faced Ibis at Zirbel Slough in Cerro Gordo County, IA on May 22, 1991.
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Pinneke, Kim
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White-faced Ibis
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Zirbel Slough
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Zirbel Slough, Clear Lake Iowa
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Slough/Marsh
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The documentation form by Kim L. Pinneke is the only one submitted and forms the basis of this record. | Elimination of similar species: Glossy Ibis was ruled out due to the white patch noticed. Cormorant ruled out by bill shape and position of legs in flight. Mergansers ruled out by their lack of uniform coloring and bill shape. American Coot ruled out by bill shape. Night Herons ruled out by coloring, bill shape and length of neck in flight. Other herons ruled out by the same criteria. Stilts and Dowitchers ruled out by bill shape. Whimbrel and Curlew ruled out by size, coloring, by their lack of prominent white face spot, and neck length. | The original documentation form event lasted from around 19:30:00/19:32:00.
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Iowa Ornithologists' Union | MS 166
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32
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25
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Rare bird documentation form for Red-necked Grebe at Zirbel Slough, 1991
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Field notes Forms (documents)
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Birds--Identification Ornithology Rare birds
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1991-05-07
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1991-05-08
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Rare birds documentation form
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Rare bird documentation form for a Red-necked Grebe at Zirbel Slough in Clear Lake, IA on May 7, 1991.
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Pinneke, Kim
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Red-necked Grebe
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Zirbel Slough
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Zirbel Slough, Clear Lake, Iowa, Southeast part of southern pond
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Slough/marshland with adjoining pond
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The documentation form by Kim L. Pinneke is the only one submitted and forms the basis of this record. | Elimination of similar species: Horned Grebe eliminated by size, lack of white face patch in breeding plumage. Eared Grebe eliminated by size, lack of white face patch in breeding plumage, overall color. Pied-billed Grebe eliminated by overall color, size, lack of "bump" on back of head and lack of face pattern. Western Grebe eliminated by lack of reddish-brown neck and breast color. Canada Goose eliminated by neck coloration and lack of "bump" on back of head. Mallard, Canvasback, Pintail, Oldsquaw, Redhead, Bufflehead and Ruddy Duck all eliminated by overall appearance and lack of conformity to the major details of the species in question. | The original documentation form event lasted from 16:55:00/17:12:00.
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Iowa Ornithologists' Union | MS 166
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32
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13
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