Title Genres Topics Date (Start) Date (End)
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
Ruth Phipps 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
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
Pearl Knoop letter to Thomas H. Kent regarding bird sightings, March 4, 1980 Correspondence Field notes Bird watching Birds--Research Ornithology--Methodology 1980-03-04 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
J. Donald Gillaspey letter to Thomas H. Kent regarding bird sightings, February 28, 1980 Correspondence Field notes Bird watching Birds--Research Accipitridae | Hawks and Eagles Ornithology--Methodology Bombycillidae | Waxwings 1980-02-28 N/A
Ione Getscher letter to Thomas H. Kent regarding bird sightings, February 12, 1980 Correspondence Field notes Bird watching Birds--Research Ornithology--Methodology Bombycillidae | Waxwings 1980-02-12 N/A
James J. Dinsmore letter to Thomas H. Kent regarding bird sightings, February 4, 1980 Correspondence Field notes Bird watching Birds--Research Anseriformes | Ducks, Geese, and Swans Accipitridae | Hawks and Eagles Ornithology--Methodology 1980-02-04 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
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
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
Tim Gates letter to Vernon M. Kleen regarding bird sightings, March 3, 1980 Correspondence Field notes Bird watching Birds--Research Anseriformes | Ducks, Geese, and Swans Accipitridae | Hawks and Eagles Ornithology--Methodology Bombycillidae | Waxwings 1980-03-03 N/A
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 field notes, winter 1963 Correspondence Field notes Bird watching Birds--Research Ornithology--Methodology 1963-04-08 N/A
Joe Kennedy letter to Peter C. Petersen regarding field notes for summer, 1963 Correspondence Field notes Bird watching Birds--Research Ornithology--Methodology 1963-06-01 1963-07-31
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
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
Letter to Peter C. Petersen regarding bird summer sightings, July 24, 1963 Correspondence Field notes Bird banding Bird watching Birds--Research Ornithology--Methodology Wild animal collecting 1963-07-24 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
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 spring migration, June 4, 1963 Correspondence Field notes Bird watching Birds--Migration Birds--Research Ornithology--Methodology 1963-06-04 N/A
Ruth Upp letter to Peter C. Petersen regarding bird sightings, March 16, 1963 Correspondence Field notes Bird watching Birds--Research Ornithology--Methodology 1963-03-16 N/A
Joe Kennedy letter to Peter C. Petersen regarding field notes, winter 1963 Correspondence Field notes Bird watching Birds--Migration Birds--Research Ornithology--Methodology 1963-03-01 1963-03-31