Title Genres Topics Date (Start) Date (End)
Peter P. Laude letter to Frederic Leopold regarding an invitation to view nesting Wood Ducks, April 16, 1952 Correspondence Birds--Habitat Birds--Nests Ornithology--Study and teaching Birdhouses 1952-04-16 N/A
Field notes and Bery Engebretsen letter to James J. Dinsmore regarding bird sightings, August 3, 1985 Correspondence Field notes Bird watching Birds--Nests Birdsongs Birds--Infancy 1985-08-03 N/A
Saylorville's Cooper's Hawks Correspondence Field notes Bird watching Birds--Nests 1986-08-22 N/A
James J. Dinsmore letter to Bruce G. Peterjohn regarding bird sightings, August 20 1986 Correspondence Field notes Birds--Nests Threskiornithidae | Ibises Photography of birds 1986-08-20 N/A
James L. Hansen letter to Doug Reeves regarding Great Blue Heron Rookery, May 2 1986 Correspondence Field notes Bird watching Birds--Breeding Birds--Nests 1986-05-02 N/A
Frederic Leopold letter to Clarence Schneider regarding a Wood Duck study, March 29, 1963 Correspondence Bird surveys Birds--Nests Ornithology--Methodology Birdhouses Ducks--Counting 1963-03-29 N/A
Frederic Leopold letter to Clarence W. Moody regarding a Wood Duck study, March 29, 1963 Correspondence Bird surveys Bird watching Birds--Nests Ornithology--Methodology Ducks--Counting 1963-03-29 N/A
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
Lawrence A. Bjonerud letter to Frederic Leopold regarding a Mallard nest and identifying Wood Ducks, May 16, 1966 Correspondence Birds--Identification Birds--Nests Eggs--Incubation Ducklings 1966-05-16 N/A
Frederic Leopold letter to Lawrence A. Bjonerud regarding identifying Wood Ducks, May 18, 1966 Correspondence Birds--Habitat Birds--Identification Birds--Nests 1966-05-18 N/A
Don Joffray letter to Frederic Leopold regarding Wood Duck houses and nest takeover and predation, April 20, 1966 Correspondence Birds--Eggs Birds--Nests Birdhouses--Design and construction Predatory animals Squirrels--Behavior Raccoon--Behavior 1966-04-20 N/A
Frederic Leopold letter to Don Joffray regarding Wood Duck houses and nest predation, April 25, 1966 Correspondence Birds--Eggs Birds--Nests Birdhouses--Design and construction Predatory animals Raccoon--Behavior 1966-04-25 N/A
Frederic Leopold letter to Peter P. Laude regarding nesting Wood Ducks and the Iowa Ornithologists' Union annual convention, May 12, 1952 Correspondence Birds--Habitat Birds--Nests Congresses and conventions Ornithology--Societies, etc 1952-05-12 N/A
Darwin Koenig letter to James J. Dinsmore regarding birds sighted in summer 1984, July 30, 1984 Correspondence Field notes Bird watching Birds--Nests 1984-07-30 N/A
Raymond Findley letter to Frederic Leopold regarding a request for information on Wood Duck houses, February 4, 1952 Correspondence Birds--Nests Country life Birdhouses--Design and construction Bird attracting 1952-02-04 N/A
Frederic Leopold letter to Keith M. Schreiner regarding Schreiner's thesis and Wood Duck nest predation, March 5, 1952 Correspondence Birds--Nests Ornithology--Study and teaching Predatory animals Squirrels--Behavior 1952-03-05 N/A
Keith M. Schreiner letter to Frederic Leopold regarding a Wood Duck nesting study paper, February 21, 1952 Correspondence Birds--Habitat Birds--Nests Ornithology--Study and teaching Predatory animals Squirrels--Behavior Ducklings 1952-02-21 N/A
Barb L. Wilson letter to Thomas H. Kent regarding weather and bird migration, June 2, 1985, with accompanying field notes Correspondence Field notes Bird banding Bird watching Birds--Identification Birds--Migration Birds--Nests Birdsongs Weather Birdhouses 1985-06-02 N/A
Sharon Steffens letter to Thomas H. Kent with incorporated field notes, May 29, 1985 Correspondence Field notes Bird populations Bird surveys Bird watching Birds--Nests Photography of birds 1985-05-29 N/A
Fred Lesher letter to Thomas H. Kent regarding bald eagle nests, April 14, 1985 Correspondence Field notes Maps (documents) Bird watching Birds--Nests Cartography Falconiformes | Hawks, Eagles, Falcons, Osprey, and Vultures Nest building 1985-04-14 N/A
Lee Searles letter to Thomas H. Kent regarding bird sightings in Greene County, Iowa, August 21, 1984 Correspondence Field notes Bird watching Birds--Nests Birds--Infancy 1984-08-21 N/A
Fred Lesher letter to Peter C. Petersen regarding Bald Eagle nests, April 12, 1985 Correspondence Field notes Birds--Nests 1985-04-12 N/A
Tim Mason letter to Bob Howe regarding Double-crested Cormorant nesting, June 26, 1984 Correspondence Maps (documents) Birds--Nests Ciconiiformes | Herons, Bitterns, Egrets, Ibises, and Storks 1984-06-26 N/A
Carl Priebe letter to James J. Dinsmore regarding bird sightings, July 27, 1984 Correspondence Field notes Bird watching Birds--Nests 1984-07-27 N/A
Dean Mosman letter to James J. Dinsmore regarding nesting of Purple Martins and Eastern Bluebirds, July 24, 1984 Correspondence Field notes Birds--Nests Weather 1984-07-24 N/A