Title Genres Topics Date (Start) Date (End)
Peter C. Petersen letter to Nicholas S. Halmi reporting spring 1977 bird observations, June 5, 1977 Correspondence Field notes Bird banding Bird populations Bird watching Trapping 1977-06-05 N/A
Peter C. Petersen letter to Nicholas S. Halmi, regarding bird sightings, July 30, 1977 Correspondence Field notes Bird watching Birds--Research 1977-07-30 N/A
Peter C. Petersen letter to Thomas H. Kent regarding bird sightings, July 29,1979 Correspondence Field notes Bird watching Birds--Counting Birds--Research 1979-07-29 N/A
Peter C. Petersen letter to Thomas H. Kent regarding fall bird sightings, December 2, 1992 Correspondence Field notes Bird watching Birds--Counting 1992-12-02 N/A
Peter C. Petersen letter to Thomas H. Kent regarding summer bird sightings, August 4, 1981 Correspondence Field notes Bird populations Bird watching Birds--Counting Birds--Research Ornithology--Methodology 1981-08-04 N/A
Peter C. Petersen letter to Vernon M. Kleen regarding spring migration 1971, June 5, 1971 Correspondence Bird watching Birds--Migration Tyrannidae | Flycatchers 1971-06-05 N/A
Peter C. Petersen letter to Woodward H. Brown, regarding fall migration 1975, December 9, 1975 Correspondence Field notes Bird watching Birds--Counting Birds--Migration 1975-12-09 N/A
Peter C. Petersen letters to Nicholas S. Halmi regarding bird sightings, February 12, 1978 Correspondence Field notes Bird watching Birds--Research 1978-02-12 1978-02-26
Peter C. Petersen post card to Nicholas S. Halmi regarding an update on bird sightings, February 28, 1977 Correspondence Field notes Bird watching 1977-02-28 N/A
Peter C. Peterson letter to Nicholas S. Halmi regarding bird sighitings, February 13, 1977 Correspondence Field notes Bird watching Birds--Behavior Birds--Identification Rare birds 1977-02-13 N/A
Peter C. Peterson letter to Thomas Kent regarding Vireo and Warbler accounts and Fall birds sighted, November 30, 1980 Correspondence Field notes Bird watching Nature photography Vireonidae | Vireos Parulidae | Warblers 1980-11-30 N/A
Peter C. Peterson letter to Woodward H. Brown, regarding fall migration 1971, November 14, 1971 Correspondence Bird banding Bird watching Birds--Migration 1971-11-14 N/A
Peter E. Lowther letter to James J. Dinsmore regarding bird sightings, June 21, 1988 Correspondence Field notes Bird watching Birds--Eggs Birds--Nests 1988-06-21 N/A
Peter E. Lowther letter to Lawrence Cantera regarding a report of three breeding bird censuses, July 29, 1982 Correspondence Field notes Bird watching Birds--Counting Birds--Habitat Birds--Nests 1982-07-29 N/A
Peter Ernzen letter to James J. Dinsmore regarding summer bird sightings, summer 1997 Correspondence Field notes Bird watching Birds--Identification Birdsongs Parulidae | Warblers 1997-06-01 1997-07-31
Peter Ernzen letter to Thomas Kent regarding spring migration, spring 1998 Correspondence Field notes Bird watching Birds--Identification Birds--Migration Birdsongs 1998-03-01 1998-05-31
Peter Lowther email to Jim Dinsmore regarding Eurasian Tree Sparrow nest, July 13, 1998 Correspondence Field notes Bird banding Bird watching Birds--Nests Birds--Infancy 1998-07-13 N/A
Peter Petersen letter to Thomas H. Kent regarding bird banding, November 25, 1979 Correspondence Field notes Bird banding Bird watching Parulidae | Warblers 1979-11-25 N/A
Peter Wickham letter to Carl Bendorf, June 2 1991 Checklists Correspondence Field notes Bird watching Birds--Identification Birds--Migration Weather 1991-03-01 1991-06-02
Phil Walsh email to Jim Dinsmore regarding Mississippi Kite sightings, August 3, 1998 Correspondence Field notes Bird watching Birds--Identification 1998-08-03 N/A
Phil Walsh email to Jim Dinsmore regarding summer 99 field report, August 4, 1999 Correspondence Field notes Bird watching 1999-08-04 N/A
Philip A. DuMont letter to Martin L. Grant regarding suggestions to the "Check-list of Iowa Birds", December 7, 1962 Correspondence Bird watching Birds--Identification Birds--Nomenclature Birds--Research Ornithology--Methodology 1962-12-07 N/A
Philip DuMont letter to Burt Gresham regarding Goose migration, April 4, 1938 Correspondence Field notes Bird watching Birds--Counting Birds--Migration 1938-04-04 N/A
Philip DuMont letter to Fred Pierce regarding Swallow-tailed Kites, June 29, 1945 Correspondence Bird watching Rare birds 1945-06-29 N/A
Philip DuMont letter to George Hendrickson regarding editorial changes to the revised checklist, November 29, 1956 Checklists Correspondence Bird watching Birds--Nomenclature Birds--Classification Copy editing 1956-11-29 N/A