Title Genres Topics Date (Start) Date (End)
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
Audubon field notes for spring 1964 migration contributed by Woodward H. Brown, June 7, 1964 Field notes Bird populations Bird watching Birds--Migration Birds--Research Ornithology--Methodology 1964-06-07 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
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
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
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
Audubon field notes, fall migration, 1963 Field notes Bird watching Birds--Research Ornithology--Methodology Weather 1963-12-08 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
Iowa Breeding Bird Atlas Press Release, January 1, 1987 Administrative records Press releases Birds--Habitat Birds--Identification Birds--Nests Birds--Research Ornithology--Societies, etc Wit and humor 1987-01-01 N/A
Audubon field notes, winter migration, 1963 Field notes Bird watching Birds--Migration Birds--Research Ornithology--Methodology 1963-03-31 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
Tim C. Moermond letter to Peter C. Petersen regarding field notes, winter 1963 Correspondence Field notes Bird watching Birds--Migration Birds--Research Ornithology--Methodology 1963-04-03 N/A
Tim C. Moermond letter to Peter C. Petersen regarding field notes, fall 1962 Correspondence Field notes Bird watching Birds--Research Ornithology--Methodology 1962-12-17 N/A
Florence McCaughey letter to Peter C. Petersen regarding 1962 fall migration report, December 6, 1962 Correspondence Field notes Bird watching Birds--Migration Birds--Research Ornithology--Methodology 1962-12-06 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
Audubon field notes, fall migration,1962 Field notes Bird watching Birds--Migration Birds--Research Ornithology--Methodology 1962-12-04 N/A
Vernon M. Kleen letter to Peter C. Petersen regarding field notes from the 1960s, January 19, 1989 Correspondence Field notes Bird watching Birds--Migration Birds--Research Ornithology--Methodology 1989-01-19 N/A
Iowa Ornithologists' Union records committee, records reviewed 1980-1999 by record number Administrative records Birds--Identification Birds--Research Ornithology--Methodology Ornithology--Societies, etc Rare birds 2000-11-27 N/A
Alphabetical list of species, records committee files through 1999 Administrative records Birds--Identification Birds--Research Ornithology--Societies, etc Rare birds 2000-11-26 N/A
Rare bird records reviewed by the records committee of the Iowa Ornithologists' Union Administrative records Birds--Identification Birds--Research Ornithology--Methodology Ornithology--Societies, etc Rare birds 2002-06-16 N/A