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Why keep bird records?
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Lecture notes
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Bird surveys Bird watching Ornithology--Methodology
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1947-05-10
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N/A
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Manuscript, graphic, and printed material
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Lecture notes presented May 10, 1947. Includes the paper "The Use of bird records." These papers were used for a presentation given at the 1947 annual meeting of the Iowa Ornithologists' Union and describe why bird records are kept, announces the launch of the periodical "Audubon field notes" and establishes deadlines for when field notes should be submitted for each season.
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DuMont, Philip A. (Philip Atkinson), 1903-1996
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Cedar Falls Iowa
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Philip A. Dumont Papers | MS 153
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9
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18
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Winter Raptor survey, 1977
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Field notes Maps (documents) Reports
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Bird surveys Bird watching Birds of prey Birds--Research Ornithology--Methodology
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1977-12-01
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1977-12-31
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Manuscript, graphic, and printed material
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Winter Raptor Survey for 1977, written by Dean M. Roosa and Paul Bartelt for the State Preserves Board. This item was used as supporting documentation for the Iowa Ornithologists’ Union Quarterly field report of winter, 1976-1977.
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Roosa, Dean M. Bartelt, Paul Iowa Preserves Board
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Iowa
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Iowa Ornithologists' Union | MS 166
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17
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19
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Woodward H. Brown letter to Iowa Ornithologists Union members regarding Red-shouldered Hawk and Red-tailed Hawk populations
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Correspondence
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Bird populations Bird surveys Birds--Research
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N/A
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N/A
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Manuscript, graphic, and printed material
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Letter from Woodward H. Brown to Iowa Ornithologists Union members regarding Red-shouldered Hawk and Red-tailed Hawk populations. Brown is requesting the participation of IOU members to join a state-wide study to better understand the declining population of the Red-shouldered Hawk while the Red-tailed Hawk population has remained steady.
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Brown, Woodward H.
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Red-shouldered Hawk Red-tailed Hawk
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Des Moines Iowa
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Iowa Ornithologists' Union | MS 166
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1
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3
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