Title Genres Topics Date (Start) Date (End)
Pearl Knoop letter to Peter C. Petersen regarding spring migration, June 4, 1963 Correspondence Field notes Bird watching Birds--Migration Birds--Research Ornithology--Methodology 1963-06-04 N/A
Robert L. Nelson letter to Peter C. Petersen regarding spring migration, June 14, 1963 Correspondence Field notes Bird watching Birds--Migration Birds--Research Ornithology--Methodology 1963-06-14 N/A
Tim C. Moermond and Mike Orthel letter to Peter C. Petersen regarding spring migration, May 28, 1963 Artifacts (object genre) Correspondence Field notes Bird watching Birds--Migration Birds--Research Ornithology--Methodology 1963-05-28 N/A
Pearl Knoop letter to Peter C. Petersen regarding Marble Rock, Iowa spring migration, June 10, 1965 Correspondence Field notes Bird watching Birds--Migration Fringillidae | Finches Parulidae | Warblers 1965-06-10 N/A
Spring migration report, Middlewestern Prairie Region, Council Bluffs, Iowa, area (Part of the Omaha Metropolitan Area), 1972 Field notes Bird watching Birds--Migration 1972-03-01 1972-05-31
Spring migration, March 1-May 24, 1984, contributed by Peter C. Petersen Field notes Bird watching Birds--Migration Birds--Nests 1984-03-01 1984-03-24
Field notes contributed by Dennis L. Carter, June 1, 1996 Field notes Reports Bird feeders Bird watching Birds--Counting Birds--Identification Birds--Migration Scolopacidae | Sandpipers, Phalaropes, and allies Parulidae | Warblers Weather Emberizidae | Sparrows 1996-06-01 N/A
Field notes contributed by Gordon James Brand, spring 1996 Field notes Reports Bird watching Birds--Identification Birds--Migration Birdsongs Weather 1996-03-01 1996-05-31
Field notes and letter to Thomas H. Kent contributed by James J. Dinsmore, June 3, 1996 Correspondence Field notes Bird kills Bird watching Birds--Counting Birds--Identification Birds--Migration Birds--Nests Parulidae | Warblers Weather 1996-06-03 N/A
Field notes contributed by Joseph P. Schaufenbuel, spring 1979 Field notes Reports Bird watching Birds--Migration 1979-03-01 1979-05-31
Iowa field reports contributed by Stephen J. Dinsmore, spring 1996 Field notes Reports Bird watching Birds--Counting Birds--Identification Birds--Migration Birds--Nests Anseriformes | Ducks, Geese, and Swans Podicipediformes | Grebes Laridae | Gulls and Terns Falconiformes | Hawks, Eagles, Falcons, Osprey, and Vultures Scolopacidae | Sandpipers, Phalaropes, and allies Parulidae | Warblers Weather 1996-03-01 1996-05-31
Iowa Bird Life reports contributed by Tom Stone and Tom Stone, Jr., June 4, 1979 Field notes Reports Bird watching Birds--Counting Birds--Migration Accipitridae | Hawks and Eagles Parulidae | Warblers 1979-06-04 N/A
Field notes contributed by Dean Mosman, spring 1983 Field notes Reports Bird populations Bird watching Birds--Migration Birds--Research Ornithology--Methodology Weather 1983-05-31 N/A
Field notes contributed by James J. Dinsmore, spring 1983 Field notes Reports Bird watching Birds--Migration Birds--Research Anseriformes | Ducks, Geese, and Swans Laridae | Gulls and Terns Accipitridae | Hawks and Eagles Sylviidae | Kinglets and Gnatcatchers Ornithology--Methodology Charadriiformes | Shore-birds, Gulls, and Auks Fringillidae | Finches Parulidae | Warblers Water birds 1983-03-01 1983-05-31
Field reports form for submitting seasonal observations of Iowa birds, Robert K. Myers, spring 1983 Field notes Forms (documents) Reports Bird watching Birds--Counting Birds--Migration Charadriiformes | Shore-birds, Gulls, and Auks Parulidae | Warblers 1983-03-01 1983-05-31
Field notes contributed by Paul Martsching, spring 1996 Field notes Reports Bird watching Birds--Counting Birds--Identification Birds--Migration Parulidae | Warblers Weather 1996-03-01 1996-05-31
Field notes contributed by Dennis Thompson, spring 1996 Field notes Reports Bird feeders Bird watching Birds--Counting Birds--Migration 1996-03-01 1996-05-31
Field notes contributed by Hank Zaletel, spring 1983 Field notes Forms (documents) Reports Bird kills Bird watching Birds--Counting Birds--Migration Anseriformes | Ducks, Geese, and Swans Charadriidae | Plovers Charadriiformes | Shore-birds, Gulls, and Auks Water birds 1983-03-01 1983-05-31
Iowa field report contributed by Chris Edwards, spring 1996 Field notes Reports Bird watching Birds--Counting Birds--Identification Birds--Migration Anseriformes | Ducks, Geese, and Swans Tyrannidae | Flycatchers Charadriiformes | Shore-birds, Gulls, and Auks Parulidae | Warblers Water levels 1996-03-01 1996-05-31
Field reports form for submitting seasonal observations of Iowa birds, Matthew Kenne, spring 1996 Field notes Forms (documents) Bird watching Birds--Counting Birds--Migration Scolopacidae | Sandpipers, Phalaropes, and allies Parulidae | Warblers 1996-03-01 1996-05-31
Field notes contributed by Dick Bierman, spring 1983 Field notes Forms (documents) Reports Bird watching Birds--Counting Birds--Migration Birds--Research Ornithology--Methodology Parulidae | Warblers Weather 1983-03-01 1983-05-31
Field notes contributed by Douglas C. Harr, May 28, 1996 Field notes Reports Bird watching Birds--Counting Birds--Identification Birds--Migration Scolopacidae | Sandpipers, Phalaropes, and allies Weather 1996-05-28 N/A
Field notes contributed by John Van Dyk, June 1, 1979 Field notes Reports Bird declines Bird watching Birds--Migration Tyrannidae | Flycatchers Accipitridae | Hawks and Eagles Charadriiformes | Shore-birds, Gulls, and Auks Parulidae | Warblers Weather 1979-06-01 N/A
Field notes contributed by John Van Dyk, spring 1983 Field notes Reports Bird feeders Bird populations Bird watching Birds--Migration Birds--Research Anseriformes | Ducks, Geese, and Swans Accipitridae | Hawks and Eagles Ciconiiformes | Herons, Bitterns, Egrets, Ibises, and Storks Ornithology--Methodology Charadriiformes | Shore-birds, Gulls, and Auks Vireonidae | Vireos Parulidae | Warblers Weather Emberizidae | Sparrows 1983-03-01 1983-05-31
Field notes contributed by John Van Dyk, spring 1996 Field notes Reports Bird watching Birds--Counting Birds--Identification Birds--Migration Anseriformes | Ducks, Geese, and Swans Falconiformes | Hawks, Eagles, Falcons, Osprey, and Vultures Turdidae | Thrushes Vireonidae | Vireos Parulidae | Warblers Weather Emberizidae | Sparrows 1996-03-01 1996-05-31