Title Genres Topics Date (Start) Date (End)
Frederic Leopold letter to Peter P. Laude regarding an invitation to view the Wood Ducks and the Iowa Ornithologists' Union annual meeting, February 18, 1952 Correspondence Birds--Habitat Congresses and conventions Ornithology--Societies, etc Ornithology--Study and teaching Wood duck--Behavior 1952-02-18 N/A
Frederic Leopold letter to Peter P. Laude regarding nesting Wood Ducks and the Iowa Ornithologists' Union annual convention, May 12, 1952 Correspondence Birds--Habitat Birds--Nests Congresses and conventions Ornithology--Societies, etc 1952-05-12 N/A
Frederic Leopold letter to Peter P. Laude regarding the Iowa Ornithologists' Union annual meeting, January 16, 1952 Correspondence Congresses and conventions Ornithology--Societies, etc Meetings 1952-01-16 N/A
Frederic Leopold letter to Stella M. Perkins regarding Wood Duck houses, May 19, 1966 Correspondence Birds--Eggs Birdhouses--Design and construction Bird attracting Raccoon--Behavior 1966-05-19 N/A
Frederic Leopold letter to Sue L. Schroder regarding Wood Duck houses, June 1, 1966 Correspondence Birdhouses--Design and construction Bird attracting 1966-06-01 N/A
Frederic Leopold letter to the Des Moines County Conservation Board regarding Wood Duck houses, April 21, 1970 Correspondence Bird watching Birdhouses Duck populations 1970-04-21 N/A
Frederic Leopold letter to the editor of the St. Paul Pioneer Press Dispatch regarding hunting and the effect on duck populations, April 27, 1988 Correspondence Birds--Conservation Hunting--Moral and ethical aspects Wildlife habitat improvement Waterfowl management Duck populations 1988-04-27 N/A
Frederick Lincoln letter to Mrs. J. E. Stewart regarding "Birds of Polk County, Iowa", December 8, 1931 Correspondence Ornithology--Methodology Ornithological literature English language--Homonyms 1931-12-08 N/A
George Hendrickson letter to Philip DuMont regarding updates to the Revised List of the Birds of Iowa, December 13, 1943 Correspondence Birds--Geographical distribution Birds--Nests Ornithology--Methodology Ornithological literature 1943-12-13 N/A
George Hendrickson letter to Philip DuMont regarding unlisted Water Ouzel, February 2, 1944 Correspondence Ornithology--Methodology Birds--Collection and preservation Ornithological literature 1944-02-02 N/A
George Hendrickson letter to Philip DuMont regarding revising the Iowa Bird checklist, May 22, 1956 Correspondence Bird watching Birds--Nomenclature 1956-05-22 N/A
George Hendrickson letter to Philip DuMont regarding final review for a revised checklist, October 8, 1956 Correspondence Bird watching Birds--Nomenclature 1956-10-08 N/A
George Kaufman letter to Oscar Allert regarding Bald Eagle and King Rail sightings, August 17, 1939 Correspondence Field notes Bird watching Birds--Nests 1939-08-17 N/A
Gladys Black letter and report to Vernon M. Kleen regarding winter Red Rock Lake area bird sightings, March 6, 1974 Correspondence Field notes Bird populations Bird watching Birds--Nests Birds--Research 1974-03-06 N/A
Gladys Black letter to Vernon Kleen regarding Evening Grosbeak invasion, March 24, 1976 Correspondence Field notes Bird populations Bird watching Birds--Research Ornithology--Methodology 1976-03-24 N/A
Gladys Black letter to Vernon Kleen regarding Evening Grosbeak invasion, January 24, 1976 Correspondence Field notes Bird populations Bird watching Birds--Research Ornithology--Methodology 1976-01-24 N/A
Gladys Black letter to Michael Newlon regarding bird sightings including a Pine Grosbeak, February 1, 1984 Correspondence Field notes Photographs Bird feeders Bird watching Birds--Identification Rare birds 1984-02-01 N/A
Gladys Black letter to Nicholas S. Halmi regarding winter bird sightings, February 9, 1979 Correspondence Field notes Bird watching Birds--Research 1979-02-09 N/A
Gladys Black letter to Nicholas S. Halmi regarding bird sightings, April 17, 1978 Correspondence Field notes Bird watching Birds--Research 1978-04-17 N/A
Gladys Black letter to Nicholas S. Halmi regarding bird sightings, February 22, 1978 Correspondence Field notes Maps (documents) Bird watching Birds--Research 1978-02-22 N/A
Gladys Black letter to Nicholas S. Halmi regarding bird sightings, March 6, 1978 Correspondence Field notes Bird watching Birds--Research 1978-03-06 N/A
Gladys Black letter to Nicholas S. Halmi regarding bird watching, April 27, 1977 Correspondence Field notes Bird watching Birds--Nests Rare birds Predation (Biology) 1977-04-27 N/A
Gladys Black letter to Nicholas S. Halmi, regarding bird sightings, March 6, 1977 Correspondence Field notes Bird populations Bird watching Birds of prey Birds--Food Birds--Habitat Wit and humor 1977-03-06 N/A
Gladys Black letter to Nicholas S. Halmi regarding bird sighting reports, March 18, 1977 Correspondence Field notes Bird watching Birds--Behavior Anseriformes | Ducks, Geese, and Swans Predation (Biology) 1977-03-18 N/A
Gladys Black letter to Nicholas S. Halmi regarding bird sighting reports, June 8, 1977 Correspondence Field notes Bird watching Birds--Counting Charadriiformes | Shore-birds, Gulls, and Auks 1977-06-08 N/A