Title Genres Topics Date (Start) Date (End)
Nicholas S. Halmi letter to Vernon M. Kleen regarding birds sighted near Iowa City during spring migration, June 1, 1975 Correspondence Bird watching Birds--Migration Birds--Research Anseriformes | Ducks, Geese, and Swans Falconiformes | Hawks, Eagles, Falcons, Osprey, and Vultures Ornithology--Methodology Charadriiformes | Shore-birds, Gulls, and Auks 1975-06-01 N/A
Note to Ames Audubon members regarding an Audubon Wildlife Film, February 1972 Correspondence Announcements Ornithology--Societies, etc Wildlife conservation Hunting--Moral and ethical aspects 1972-02-01 1972-02-29
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
Oscar Allert letter to Mary Lou Petersen regarding honorary membership in the Iowa Ornithologists' Union Correspondence Ornithology--Societies, etc N/A 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 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 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 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 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 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 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 Thomas H. Kent regarding bird sightings, March 4, 1980 Correspondence Field notes Bird watching Birds--Research Ornithology--Methodology 1980-03-04 N/A
Peter C. Petersen letter to Carl Bendorf regarding bird sightings for the IOU Quarterly Field Report, December 1, 1989 Correspondence Field notes Bird watching Birds--Counting Ornithology--Methodology Rare birds 1989-12-01 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 Lowther letter to W. Ross Silcock regarding House Finch sighting in 1988, December 28, 1988 Correspondence Field notes Bird banding Bird feeders Birds--Identification Ornithology--Technique Rare birds 1988-12-25 1988-12-28
Peter P. Laude letter to Frederic Leopold regarding an invitation to speak at the Iowa Ornithologists' Union convention, January 10, 1952 Correspondence Congresses and conventions Ornithology--Societies, etc Ornithology--Study and teaching Meetings 1952-01-10 N/A
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
Peter P. Laude letter to Frederic Leopold regarding the acceptance of the invitation to speak at the Iowa Ornithologists' Union convention, February 13, 1952 Correspondence Congresses and conventions Ornithology--Societies, etc Ornithology--Study and teaching 1952-02-13 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 James Peters regarding Savannah Sparrow specimens, May 16, 1934 Correspondence Bird watching Birds--Identification Ornithology--Study and teaching Birds--Classification Zoological specimens 1934-05-16 N/A
Philip DuMont letter to James Peters regarding Sparrow identification, November 23, 1933 Correspondence Birds--Identification Ornithology--Study and teaching Birds--Classification Zoological specimens 1933-11-23 N/A
Philip DuMont letter to James Peters regarding Sparrow specimens, October 1, 1934 Correspondence Bird watching--Guidebooks Birds--Identification Ornithology--Study and teaching Birds--Classification Zoological specimens 1934-10-01 N/A
Philip DuMont letter to Joseph Grinnell regarding Savannah Sparrow identification, November 6, 1933 Correspondence Birds--Identification Ornithology--Study and teaching Birds--Classification Zoological specimens 1933-11-06 N/A
Philip DuMont letter to Max Stempel regarding records for the Stempel collection, November 9, 1934 Correspondence Birds--Geographical distribution Birds--Identification Ornithology--Methodology Zoological specimens 1934-11-09 N/A
Philip DuMont letter to Thomas Stephens regarding questionable birds in the Revised List of Iowa Birds, January 30, 1934 Correspondence Birds--Geographical distribution Ornithology--Bibliography Ornithological literature Zoological specimens 1934-01-30 N/A