Title Genres Topics Date (Start) Date (End)
Joe Kennedy letter to Peter C. Petersen regarding field notes, Fall 1963 Correspondence Field notes Bird watching Birds--Research Ornithology--Methodology 1963-08-01 1963-11-30
Harold Fetter letter to Peter C. Petersen regarding bird sightings, August 14, 1963 Correspondence Field notes Bird watching Birds--Eggs Birds--Research Ornithology--Methodology 1963-08-14 N/A
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
Tim C. Moermond letter to Peter C. Petersen regarding field notes, November 27, 1963 Correspondence Field notes Bird watching Birds--Research Ornithology--Methodology 1963-11-27 N/A
Pearl Knoop letter to Peter C. Petersen regarding bird sightings, December 7, 1963 Correspondence Field notes Bird watching Birds--Research Ornithology--Methodology 1963-12-07 N/A
Florence McCaughey letter to Peter C. Petersen regarding field notes, December 10, 1963 Correspondence Field notes Bird watching Birds--Research Ornithology--Methodology 1963-12-10 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
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
Pearl Knoop letter to Peter C. Petersen regarding bird sightings, June 10, 1964 Correspondence Field notes Bird populations Bird watching Birds--Migration Birds--Research Ornithology--Methodology 1964-06-10 N/A
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
Florence McCaughey letter regarding fall bird migration, November 25, 1964 Correspondence Field notes Bird populations Bird watching Birds--Migration Birds--Research Ornithology--Methodology Parulidae | Warblers 1964-11-25 N/A
Woodward H. Brown letter to Peter C. Petersen regarding Aubudon field notes, December 9, 1964 Correspondence Field notes Bird populations Bird watching Birds--Research Ornithology--Methodology Charadriiformes | Shore-birds, Gulls, and Auks 1964-12-09 N/A
Woodward H. Brown letter to Peter C. Petersen regarding winter migration, March 19, 1966 Correspondence Field notes Bird watching Birds--Migration Birds--Research Columbiformes | Doves and Pigeons Sittidae | Nuthatches Ornithology--Methodology 1966-03-19 N/A
Woodward H. Brown letter to Peter C. Petersen regarding winter migration, April 2, 1966 Correspondence Field notes Bird watching Birds--Migration Birds--Research Ornithology--Methodology 1966-04-02 N/A
Audubon field notes for Iowa, fall 1966 Correspondence Field notes Bird watching Birds--Identification Birds--Migration Birds--Research Ornithology--Methodology Fringillidae | Finches 1966-08-01 1966-11-30
Woodward H. Brown postcard to Peter C. Petersen regarding the sighting of a female Oldsquaw and an Ani in Cedar Rapids, December 12, 1966 Correspondence Field notes Bird watching Birds--Research Ornithology--Methodology 1966-12-12 N/A
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
Audubon field notes for spring 1967 contributed by Frederick W. Kent Clippings (information artifacts) Correspondence Field notes Bird watchers Bird watching Birds--Migration Birds--Research Parulidae | Warblers 1967-03-01 1967-05-31
Iowa Ornithologists' Union, Quarterly field report, fall 1967 Correspondence Field notes Bird watching Birds--Research Ornithology--Methodology 1967-08-01 1967-11-30
Iowa Ornithologists' Union, Quarterly field report, winter 1967-1968 Correspondence Field notes Bird watching Birds--Research Ornithology--Methodology 1967-12-01 1968-02-28
Gladys Black letter to Vernon M. Kleen regarding her sighting of Clark's Nutcracker, March 5, 1973 Correspondence Bird watching Birds--Research Ornithology--Methodology 1973-03-05 N/A
Gladys Black letter and report to Vernon M. Kleen regarding winter Red Rock Lake area bird sightings, March 6, 1974 Correspondence Field notes Bird populations Bird watching Birds--Nests Birds--Research 1974-03-06 N/A
Letter from Robert Jessen to Vernon M. Kleen regarding birds sighted near Oskaloosa, summer 1974 Correspondence Field notes Bird watching Birds--Nests Birds--Research Troglodytidae | Wrens 1974-06-01 1974-07-31
Melba Wigg letter and report to Vernon M. Kleen regarding spring migration bird sightings near Council Bluffs, June 6, 1974 Correspondence Field notes Bird watching Birds--Migration Birds--Research Ornithology--Methodology 1974-06-06 N/A
Robert Jessen letter and checklist to Vernon M. Kleen regarding birds sighted during 1974 fall migration, December 1, 1974 Checklists Correspondence Bird watching Birds--Identification Birds--Migration Birds--Research Ornithology--Methodology 1974-08-01 1974-11-30