Title Genres Topics Date (Start) Date (End)
Daily field checking list by Walter Rosene, February 9, 1941 Checklists Field notes Bird watching Birds--Nests 1941-02-09 N/A
Daily field checking list by Walter Rosene, April 27, 1941 Checklists Field notes Bird watching Birds--Nests Weather Birds--Infancy 1941-04-27 N/A
Daily field checking list by Walter Rosene, May 3, 1941 Checklists Field notes Bird watching Birds--Nests 1941-05-03 N/A
Daily field checking list by Walter Rosene, May 4, 1941 Checklists Field notes Bird watching Birds--Nests Birds--Infancy 1941-05-04 N/A
Daily field checking list by Walter Rosene, May 7, 1941 Checklists Field notes Bird watching Birds--Nests Weather 1941-05-07 N/A
Daily field checking list by Walter Rosene, May 13, 1941 Checklists Field notes Bird watching Birds--Nests Weather 1941-05-13 N/A
Daily field checking list by Walter Rosene, May 15, 1941 Checklists Field notes Bird watching Birds--Nests Weather Birds--Infancy 1941-05-15 N/A
Daily field checking list by Walter Rosene, May 18, 1941 Checklists Field notes Bird watching Birds--Nests Weather 1941-05-18 N/A
Daily field checking list by Walter Rosene, May 30, 1941 Checklists Field notes Bird watching Birds--Eggs Birds--Nests Weather 1941-05-30 N/A
Daily field checking list by Walter Rosene, June 15, 1941 Checklists Field notes Bird watching Birds--Nests Weather 1941-06-15 N/A
Records Committee review for rare bird sighting for Long-billed Curlew in Clay County from 1865-1875 Administrative records Clippings (information artifacts) Field notes Birds--Identification Birds--Nests Rare birds 1943-12-01 1994-02-04
Birdwatching notes compiled by Woodward Hart Brown, 1946-1980 Field notes Bird watching Birds--Eggs Birds--Identification Birds--Nests Birdsongs Weather 1946-02-10 1980-02-29
Wood Duck nesting records, volume two, 1954-1966 Clippings (information artifacts) Correspondence Field notes Birds--Nests Birds--Research Ornithology--Methodology Birdhouses Eggs--Incubation Ducks--Counting Ducklings Wood duck--Behavior 1954-01-01 1966-12-31
Iowa Ornithologists' Union, field report compiled data, Louisiana Waterthrush, 1958-1983 Field notes Bird watching Birds--Counting Birds--Eggs Birds--Nests Birds--Research Birds--Infancy Birds--Feeding and feeds 1958-09-09 1983-07-31
Iowa Ornithologists' Union, field report compiled data, Sedge Wren, 1963-1983 Field notes Bird watching Birds--Counting Birds--Nests Birds--Research Birds--Infancy 1963-05-04 1983-07-17
Pearl Knoop letter to Peter C. Petersen regarding fall migration, August 17, 1963 Correspondence Field notes Bird watching Birds--Migration Birds--Nests Birds--Research Ornithology--Methodology 1963-08-17 N/A
Audubon field notes summer migration 1964 contributed by Woodward H. Brown Field notes Bird declines Bird populations Bird watching Birds--Migration Birds--Nests Birds--Research Ornithology--Methodology Weather 1964-06-01 1964-07-31
Pearl Knoop letter to Peter C. Petersen regarding nesting season, August 21, 1964 Correspondence Field notes Bird watching Birds--Migration Birds--Nests Birds--Research Ornithology--Methodology 1964-08-21 N/A
Iowa Ornithologists' Union, field report compiled data, Northern Cardinal, 1964-1979 Field notes Bird watching Birds--Nests Birds--Research Birds--Infancy 1964-09-18 1979-09-19
Records Committee review for rare bird sighting for an Ibis species at Goose Lake in 1964 Administrative records Clippings (information artifacts) Field notes Birds--Identification Birds--Nests Ciconiiformes | Herons, Bitterns, Egrets, Ibises, and Storks Threskiornithidae | Ibises Rare birds 1964-10-20 1993-08-26
Audubon field notes on the nesting season contributed by Woodward H. Brown, August 15, 1965 Field notes Bird banding Bird populations Bird watching Birds--Nests Turdidae | Thrushes 1965-08-15 N/A
Iowa Ornithologists' Union, field report compiled data, American Bittern, 1965-1983 Field notes Bird watching Birds--Counting Birds--Nests Birds--Research 1965-11-04 1983-07-07
Wood Duck nesting records, volume three, 1967-1978 Clippings (information artifacts) Correspondence Printed ephemera Field notes Birds--Eggs Birds--Nests Birds--Research Ornithology--Methodology Birdhouses Eggs--Incubation Ducks--Counting Ducklings Wood duck--Behavior 1967-01-01 1978-12-31
Iowa Ornithologists' Union, field report compiled data, Least Bittern, 1967-1983 Field notes Bird watching Birds--Counting Birds--Nests Birds--Research Birds--Infancy 1967-05-07 1983-07-22
Iowa Ornithologists' Union, Quarterly field report, summer 1967 and Audubon field notes for Iowa, summer 1967 Field notes Bird watching Birds--Nests Birds--Research Ornithology--Methodology Laniidae | Shrikes Parulidae | Warblers 1967-06-01 1967-07-31