Title Genres Topics Date (Start) Date (End)
Peter C. Petersen letter to Nicholas S. Halmi regarding winter bird sightings, February 10, 1979 Correspondence Field notes Bird feeders Bird watching Birds--Counting Birds--Research Anseriformes | Ducks, Geese, and Swans Laridae | Gulls and Terns Accipitridae | Hawks and Eagles Fringillidae | Finches Water birds 1979-02-10 N/A
Peter C. Petersen letter to Nicholas S. Halmi regarding fall migration, 1976 Correspondence Field notes Bird watching Birds--Research 1976-08-23 N/A
Peter C. Petersen letter to Nicholas S. Halmi regarding bird sightings, May 23, 1978 Correspondence Field notes Bird watching Birds--Research 1978-05-23 N/A
Peter C. Petersen letter to Nicholas S. Halmi regarding bird sightings and bird banding, November 29, 1977 Correspondence Field notes Bird banding Bird watching Birds--Counting Birds--Research Tyrannidae | Flycatchers Turdidae | Thrushes Vireonidae | Vireos Parulidae | Warblers 1977-11-29 N/A
Peter C. Petersen letter and checklist to Nicholas S. Halmi regarding fall migration, 1976 Correspondence Field notes Bird banding Bird watching Birds--Research Trapping 1976-12-05 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
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
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
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
Pearl Knoop letter to Peter C. Petersen regarding fall migration, December 15, 1962 Correspondence Field notes Bird watching Birds--Migration Birds--Research Ornithology--Methodology 1962-12-15 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
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 bird sightings, December 7, 1963 Correspondence Field notes Bird watching Birds--Research Ornithology--Methodology 1963-12-07 N/A
Pearl Knoop letter to Nicholas S. Halmi regarding bird sightings, May 31, 1978. Correspondence Field notes Bird watching Birds--Migration Birds--Research 1978-05-31 N/A
Paul Martsching letter to Robert K. Myers regarding bird sightings, spring 1988 Correspondence Field notes Bird watching Birds--Identification Birds--Research 1988-03-01 1988-05-31
Opal Uher letter to James J. Dinsmore regarding a request to purchase a Peter C. Petersen publication, August 9, 1988 Correspondence Field notes Bird feeders Bird watching Birds--Nests Birds--Research Ornithology--Societies, etc Birds--Infancy 1988-08-09 N/A
Nicholas S. Halmi letter to Vernon M. Kleen regarding publication of bird reports, September 19, 1978 Correspondence Field notes Bird watching Birds--Research 1978-09-19 N/A
Nicholas S. Halmi letter to Vernon M. Kleen regarding birds sighted around Iowa City during fall 1975, December 1, 1975 Correspondence Field notes Bird watching Birds--Research Falconiformes | Hawks, Eagles, Falcons, Osprey, and Vultures Ornithology--Methodology Charadriiformes | Shore-birds, Gulls, and Auks 1975-12-01 N/A
Nicholas S. Halmi letter to Vernon M. Kleen regarding birds sighted around Iowa City during fall 1974, November 30, 1974 Correspondence Field notes Bird watching Birds--Migration Birds--Research Ornithology--Methodology 1974-11-30 N/A
Nicholas S. Halmi letter to Vernon M. Kleen regarding birds observed near Iowa City, April 1, 1976 Correspondence Field notes Bird watching Birds--Counting Birds--Research Ornithology--Methodology 1976-04-01 N/A
Nicholas S. Halmi letter to Vernon M. Kleen regarding bird sightings, March 3, 1978 Correspondence Field notes Bird watching Birds--Research 1978-03-03 N/A
Nesting reports, field reports, spring 1984 Field notes Bird watching Birds--Counting Birds--Nests Birds--Research 1984-03-01 1984-05-31
Neil Bernstein letter to James J. Dinsmore regarding personal papers, summer 1988 Correspondence Field notes Bird watching Birds--Research Ornithology--Societies, etc 1988-06-01 1988-07-31
Neil Bernstein letter to James J. Dinsmore regarding aerial photographs, June 12, 1988 Correspondence Field notes Bird watching Birds--Research Ornithology--Societies, etc 1988-06-12 N/A
Needed for Iowa Checklists Field notes Bird watching Birds--Research Gruiformes | Cranes, Rails, and Coots Columbiformes | Doves and Pigeons Anseriformes | Ducks, Geese, and Swans Pelecaniformes | Pelicans, Cormorants, Darters, and Frigate-birds Podicipediformes | Grebes Falconiformes | Hawks, Eagles, Falcons, Osprey, and Vultures Ciconiiformes | Herons, Bitterns, Egrets, Ibises, and Storks Passeriformes | Perching-birds and songbirds Charadriiformes | Shore-birds, Gulls, and Auks Galliformes | Quails, Pheasants, Turkeys, and Grouse Piciformes | Woodpeckers and allies Strigiformes | Owls Apodiformes | Swifts and Hummingbirds Cuculiformes | Cuckoos, Roadrunners, and Anis Caprimulgiformes | Nighthawks and Nightjars Coraciiformes | Kingfishers 1934-01-01 1934-12-31