Title Genres Topics Date (Start) Date (End)
Douglas C. Harr letter to Thomas H. Kent regarding bird sightings, February 27, 1980 Correspondence Field notes Bird watching Birds--Research Ornithology--Methodology 1980-02-27 N/A
Field notes and Douglas C. Harr letter to James J. Dinsmore regarding bird sightings, July 25, 1985 Correspondence Field notes Bird watching Weather Birds--Infancy 1985-07-25 N/A
Doug Reeves letter to Robert K. Myers regarding a special sighting report, May 11, 1987 Correspondence Field notes Bird watching Birds--Identification Birds--Nests Birdsongs Birds--Research 1987-05-11 N/A
Doug Reeves letter to Robert K. Myers regarding an unusual bird sighting, May 19, 1987 Correspondence Field notes Bird watching Birds--Identification 1987-05-19 N/A
Dorothy A. Brunner letter to Thomas H. Kent regarding bird sightings, May 28, 1980 Correspondence Field notes Bird watching Birds--Nests Birds--Research Accipitridae | Hawks and Eagles Ornithology--Methodology Hirundinidae | Swallows Turdidae | Thrushes Vireonidae | Vireos Parulidae | Warblers 1980-05-28 N/A
Dorothy A. Brunner letter to Thomas H. Kent regarding bird sightings, February 21, 1980 Correspondence Field notes Bird watching Birds--Research Ornithology--Methodology 1980-02-21 N/A
Dixie Kanago letter to Robert K. Myers regarding Common Redpoll and Red Crossbill sightings, May 2, 1988 Correspondence Field notes Bird feeders Bird watching 1988-05-02 N/A
Field notes contributed by Dick Bierman, Cherokee, Iowa, spring 1984 Field notes Forms (documents) Bird watching Birds--Research 1984-03-01 1984-05-31
Field notes contributed by Dick Bierman, summer 1991 Field notes Forms (documents) Bird watching 1991-06-01 1991-07-31
Dick Bierman letter to Thomas H. Kent regarding bird sightings in northwest, Iowa, February 5, 1980 Correspondence Field notes Bird watching Birds--Research Ornithology--Methodology 1979-12-01 1980-02-28
Dick Bierman letter to Thomas H. Kent regarding Swainson's Hawk sightings, April 20, 1992 Correspondence Field notes Bird watching Birds--Food Weather 1992-04-20 N/A
Dick Bierman letter to Nicholas S. Halmi regarding bird sightings, November 29, 1977 Correspondence Field notes Bird watching Birdsongs Birds--Infancy 1977-11-29 N/A
Field notes contributed by Dick Bierman, summer 1985 Field notes Forms (documents) Bird watching Birds--Nests Birds--Infancy 1985-06-01 1985-07-31
Dennis L. Carter letter to James J. Dinsmore regarding a Pine Siskin sighting, August 3, 2004 Correspondence Field notes Bird feeders Bird watching Birds--Identification 2004-08-03 N/A
Dennis Dahl letter to James J. Dinsmore regarding American White Pelican sightings, July 13 1988 Correspondence Field notes Bird watching Weather Birds--Feeding and feeds 1988-07-13 N/A
Dean Mosman letter to Thomas H. Kent regarding bird sightings, June 3, 1980 Correspondence Field notes Bird watching Birds--Counting Vireonidae | Vireos 1980-06-03 N/A
Dean Mosman letter to Thomas H. Kent regarding bird sightings, July 29, 1980 Correspondence Field notes Bird populations Bird watching Birds--Nests Birdsongs Weather 1980-07-29 N/A
Dean Mosman letter to Thomas H. Kent regarding bird sightings, February 22, 1980 Correspondence Field notes Bird watching Birds--Research Anseriformes | Ducks, Geese, and Swans Accipitridae | Hawks and Eagles Ornithology--Methodology 1980-02-22 N/A
Dean Mosman letter to Nicholas S. Halmi regarding bird sightings, November 27, 1977 Correspondence Field notes Bird banding Bird watching Birds--Counting Birds--Identification 1977-11-27 N/A
David J. Conrads letter to Carl J. Bendorf regarding bird sightings, fall 1988 Correspondence Field notes Bird watching Birds--Identification Birdsongs Birds--Infancy 1988-08-01 1988-11-30
David A. Newhouse letter to Thomas H. Kent regarding bird sightings, May 27, 1980 Correspondence Field notes Bird banding Bird watching Birds--Migration Anseriformes | Ducks, Geese, and Swans Accipitridae | Hawks and Eagles Ciconiiformes | Herons, Bitterns, Egrets, Ibises, and Storks Fringillidae | Finches Parulidae | Warblers 1980-05-27 N/A
David A. Newhouse letter to Thomas H. Kent regarding bird sightings, August 11, 1980 Correspondence Field notes Forms (documents) Bird populations Bird watching Birds--Counting Birds--Nests 1980-08-11 N/A
Field notes contributed by Daryl Howell, summer 1996 Field notes Bird watching 1996-06-01 1996-07-31
Darwin Koenig letter to Thomas H. Kent regarding bird sightings, November 30, 1979 Correspondence Field notes Bird watching 1979-11-30 N/A
Darwin Koenig letter to Thomas H. Kent regarding bird sightings, May 28, 1980 Correspondence Field notes Bird watching Birds--Nests Birds--Research Ornithology--Methodology 1980-05-28 N/A