Title Genres Topics Date (Start) Date (End)
Dean Mosman letter to Vernon Kleen regarding hawks, April 8, 1976 Correspondence Field notes Bird watching Birds--Research Ornithology--Methodology 1976-04-08 N/A
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
Documents regarding a Wood Duck study, 1963 Correspondence Questionnaires Bird surveys Bird watching Birds--Nests Birds--Research Ornithology--Methodology Ducklings 1963-01-01 1963-12-31
Documents regarding a Wood Duck study, February 27, 1964 Checklists Correspondence Questionnaires Bird surveys Bird watchers Birds--Nests Birds--Research Ornithology--Methodology Predatory animals Ducks--Counting Ducklings 1964-02-27 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
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 Franek letter to Peter C. Peterson regarding her first winter bird population study, March 10, 1969 Correspondence Bird watching Birds--Identification Ornithology--Methodology Weather 1969-01-01 1969-03-31
Doug Reeves letter and photograph to W. Ross Silcock regarding Breeding Bird Atlas special documentation forms and a Barn Owl nest, February 12, 1987 Correspondence Field notes Photographs Bird watching Birds--Nests Ornithology--Methodology Birds--Infancy 1987-02-12 N/A
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
Douglas C. Harr letter to Thomas H. Kent regarding bird sightings, May 27, 1980 Correspondence Field notes Bird watching Birds--Research Ornithology--Methodology 1980-05-27 N/A
Douglas C. Harr letter to Thomas H. Kent regarding summer bird sightings, July 23, 1981 Correspondence Field notes Bird watching Birds--Nests Birds--Research Ornithology--Methodology 1981-07-31 N/A
Douglas E. Trapp letter to Thomas H. Kent regarding raptor migration watch, October 3, 1986 Correspondence Field notes Bird watching Birds of prey Birds--Migration Ornithology--Methodology Weather 1986-10-03 N/A
Edward William Nelson letter to the bird migration observers of the Biological Survey regarding a change in reporting bird observations, March 2, 1925 Correspondence Instructions (document genre) Bird watching Birds--Migration Birds--Research Ornithology--Methodology 1925-03-02 N/A
Edwin G. Crocker letter to Peter C. Petersen and Gladys Black regarding sighting of a Snowy Owl, January 29, 1980 Correspondence Field notes Bird watching Birds--Research Ornithology--Methodology 1980-01-29 N/A
Elaine and Don Johnson letter to Thomas H. Kent regarding banding, August 13, 1982 Correspondence Field notes Bird banding Bird watching Birds--Research Ornithology--Methodology 1982-08-13 N/A
Eldon J. Bryant letter to Woodward H. Brown regarding spring migration, May 17, 1964 Correspondence Field notes Bird populations Bird watching Birds--Migration Birds--Research Ornithology--Methodology 1964-05-17 N/A
Female Summer Tanager - South edge of Mason City May 4+5, 1989 Correspondence Field notes Birds--Identification Ornithology--Methodology Rare birds 1989-05-04 1989-05-05
Field notes and letter from Barbara L. Wilson to Thomas H. Kent regarding spring bird sightings, June 1, 1983 Correspondence Field notes Reports Bird populations Bird watching Birds--Identification Birds--Nests Anseriformes | Ducks, Geese, and Swans Tyrannidae | Flycatchers Podicipediformes | Grebes Laridae | Gulls and Terns Accipitridae | Hawks and Eagles Ornithology--Methodology Fringillidae | Finches Hirundinidae | Swallows Turdidae | Thrushes Vireonidae | Vireos Parulidae | Warblers Water birds Weather Emberizidae | Sparrows 1983-06-01 N/A
Field notes and letter to Thomas H. Kent from René Laubach regarding a Mourning Warbler sighting, spring 1983 Correspondence Field notes Forms (documents) Reports Bird watching Birds--Counting Birds--Identification Birds--Research Ornithology--Methodology Parulidae | Warblers Emberizidae | Sparrows 1983-05-31 N/A
Field notes contributed by Douglas C. Harr, February 25, 1983 Correspondence Field notes Forms (documents) Animal migration--Climatic factors Bird watching Birds--Research Ornithology--Methodology Weather 1983-02-25 N/A
Field notes contributed by James J. Dinsmore with a letter and verifying documentation, fall 1982 Correspondence Field notes Bird watching Birds--Habitat Birds--Identification Birds--Research Ornithology--Methodology Rare birds 1981-08-01 1981-11-30
Field notes contributed by Ronald Harms, winter 1982-1983 Correspondence Field notes Reports Bird watching Birds--Counting Birds--Research Ornithology--Methodology 1982-12-01 1983-02-28
Field notes contributed by Tanya Bray, spring 1980 Correspondence Field notes Bird watching Birds--Counting Birds--Research Anseriformes | Ducks, Geese, and Swans Laridae | Gulls and Terns Accipitridae | Hawks and Eagles Ornithology--Methodology Scolopacidae | Sandpipers, Phalaropes, and allies Fringillidae | Finches Vireonidae | Vireos Parulidae | Warblers Weather 1980-03-01 1980-05-31
Field notes with additional documentation contributed by Peter C. Petersen, fall 1981 Correspondence Field notes Bird banding Bird watching Birds--Research Anseriformes | Ducks, Geese, and Swans Tyrannidae | Flycatchers Ornithology--Methodology Parulidae | Warblers 1981-08-01 1981-11-30
Field report contributed by Ronald Harms with a letter to Thomas H. Kent regarding a bird identification, July 8, 1982 Correspondence Field notes Bird watching Birds--Identification Birds--Research Ornithology--Methodology 1982-06-01 1982-07-31