Title Genres Topics Date (Start) Date (End)
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
R. Craig Hensley letter to Thomas H. Kent regarding field reports , July 28, 1982 Correspondence Field notes Bird watching Birds--Research Ornithology--Methodology 1982-07-28 N/A
R. Craig Hensley letter to Thomas H. Kent regarding possible bird sightings and attached field notes, August 11, 1982 Correspondence Field notes Bird watching Birds--Identification Birds--Research Ornithology--Methodology Rare birds 1982-08-11 N/A
Rare bird documentation for Varied Thrush at Spirit Lake in 1985 Field notes Birds--Identification Ornithology--Methodology Rare birds 1985-12-15 N/A
Records Committee review for rare bird sighting for an Ibis species at Little Wall Lake in 1958 Administrative records Clippings (information artifacts) Field notes Birds--Identification Ciconiiformes | Herons, Bitterns, Egrets, Ibises, and Storks Threskiornithidae | Ibises Ornithology--Methodology Rare birds 1958-05-16 1993-08-26
Records Committee review for rare bird sighting for Ferruginous Hawk north of Pocahontas in 1977 Administrative records Clippings (information artifacts) Correspondence Field notes Bird banding Birds--Identification Ornithology--Methodology Rare birds Zoological specimens 1985-06-04 1994-02-03
Records Committee review for rare bird sighting for Glossy Ibis at Union Slough National Wildlife Refuge in 1992 Administrative records Clippings (information artifacts) Correspondence Field notes Photographs Birds--Identification Ornithology--Methodology Ornithology--Societies, etc Photography of birds Rare birds Ornithological illustration 1992-05-04 1996-04-24
Records Committee review for rare bird sighting for Greater Prairie-Chicken at Larchwood in 1992 Administrative records Clippings (information artifacts) Field notes Photographs Birds--Identification Ornithology--Methodology Rare birds Hunting Zoological specimens 1993-06-01 1994-10-18
Records Committee review for rare bird sighting for Gyrfalcon at Guthrie County in 1979 Administrative records Clippings (information artifacts) Field notes Birds--Identification Ornithology--Methodology Rare birds 1979-03-01 1993-08-26
Records Committee review for rare bird sighting for Gyrfalcon at Iowa Lake Wildlife Management Area in 1992 Administrative records Clippings (information artifacts) Correspondence Field notes Photographs Birds--Behavior Birds--Identification Ornithology--Methodology Photography of birds Rare birds 1992-03-27 1994-10-18
Records Committee review for rare bird sighting for Sabine's Gull at Ventura Marsh Wildlife Management Area in 1970 Administrative records Clippings (information artifacts) Correspondence Field notes Birds--Identification Ornithology--Methodology Rare birds 1971-06-01 1994-02-04
Red Rock fall migration, 1976 Field notes Bird watching Birds--Research Ornithology--Methodology 1976-08-01 1976-11-30
Report form for selected species in spring, contributed by Barbara L. Wilson, spring 1985 Field notes Forms (documents) Bird watching Birds--Research Ornithology--Methodology 1985-03-01 1985-05-31
Report form for selected species in spring, contributed by Douglas C. Harr, spring 1985 Field notes Forms (documents) Bird watching Birds--Research Ornithology--Methodology 1985-03-01 1985-05-31
Report form for selected species in spring, contributed by Gerald White, spring 1985 Field notes Forms (documents) Bird watching Birds--Research Ornithology--Methodology 1985-03-01 1985-05-31
Report form for selected species in spring, contributed by James L. Fuller, spring 1985 Field notes Forms (documents) Bird watching Birds--Research Ornithology--Methodology 1985-03-01 1985-05-31
Report form for selected species in spring, contributed by James P. Sandrock, spring 1985 Field notes Forms (documents) Bird watching Birds--Research Ornithology--Methodology 1985-03-01 1985-05-31
Report form for selected species in spring, contributed by Marion M. Brewer, spring 1985 Field notes Forms (documents) Bird watching Birds--Research Ornithology--Methodology 1985-03-01 1985-05-31
Report form for selected species in spring, contributed by Paul Martsching, spring 1985 Field notes Forms (documents) Bird watching Birds--Research Ornithology--Methodology Spring Weather 1985-03-01 1985-05-31
Report form for selected species in spring, contributed by Raymond L. Cummins, spring 1985 Field notes Forms (documents) Bird watching Birds--Research Ornithology--Methodology 1985-03-01 1985-05-31