Title Genres Topics Date (Start) Date (End)
Christmas count, 1980-81 Field notes Reports Bird populations Bird surveys Bird watching Birds--Counting Birds--Identification Winter Citizen science 1980-12-20 1981-01-04
Field report from Dubuque, June 1977 Field notes Bird populations Bird watching 1977-06-01 1977-06-30
Gladys Black letter to Nicholas S. Halmi regarding the large population of Evening Grosbeak's, November 16, 1977 Correspondence Field notes Bird feeders Bird populations Bird watching Birds--Counting Birds--Food Birds--Research 1977-11-16 N/A
Field notes contributed by Hank Zaletel and Linda Zaletel, April 2, 1979. Field notes Reports Bird populations Bird watching Birds--Counting 1979-04-02 N/A
1978 Iowa Christmas bird count summary Field notes Reports Bird populations Bird watching Birds--Counting Birds--Research 1978-12-01 1979-02-28
1978 fall report Field notes Bird populations Bird watching Birds--Counting Birds--Migration Parulidae | Warblers 0198-08-01 1978-11-30
Donald J. Gillaspey letter to Nicholas S. Halmi regarding bird sightings, December 1, 1978 Correspondence Field notes Bird populations Bird watching Ciconiiformes | Herons, Bitterns, Egrets, Ibises, and Storks 1978-12-01 N/A
Letter between Vernon M. Kleen and Nicholas S. Halmi, and attached field notes, June - July, 1978 Correspondence Field notes Bird populations Bird watching 1978-06-10 N/A
Field report, summer 1978 Field notes Bird populations Bird watching Birds--Counting 1978-06-01 1978-07-31
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
1977 Spring Report, parts I and II Field notes Bird declines Bird populations Bird watching Birds--Migration 1977-03-01 1977-05-31
Ron Muilenburg letter to Nicholas S. Halmi regarding bird sightings, June 8, 1977 Correspondence Field notes Bird populations Bird watching Birds--Migration 1977-06-08 N/A
Field records: April 4 through May 30, 1977 Field notes Bird populations Bird watching Charadriiformes | Shore-birds, Gulls, and Auks Parulidae | Warblers 1977-04-04 1977-05-30
Field report for Spring, April 1 to May 31, 1977 Field notes Bird declines Bird populations Bird watching Habitat (Ecology) 1977-03-01 1977-05-31
Iowa map with Snowy Owl sightings, 1976-1977 Field notes Maps (documents) Bird populations Bird watching Birds--Counting Birds--Research 1977-01-01 1977-12-31
Gladys Black letter to Nicholas S. Halmi regarding bird sightings, June 2, 1977 Correspondence Field notes Bird declines Bird populations Bird watching Birds--Eggs 1977-06-02 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
Audubon field notes for Des Moines, winter 1963-1964 Field notes Bird declines Bird populations Bird watching Birds--Migration Birds--Research Ornithology--Methodology 1963-12-01 1964-02-28
Woodward H. Brown letter to Peter C. Petersen regarding Aubudon field notes, December 9, 1964 Correspondence Field notes Bird populations Bird watching Birds--Research Ornithology--Methodology Charadriiformes | Shore-birds, Gulls, and Auks 1964-12-09 N/A
Florence McCaughey letter regarding fall bird migration, November 25, 1964 Correspondence Field notes Bird populations Bird watching Birds--Migration Birds--Research Ornithology--Methodology Parulidae | Warblers 1964-11-25 N/A
Audubon field notes summer migration 1964 contributed by Woodward H. Brown Field notes Bird declines Bird populations Bird watching Birds--Migration Birds--Nests Birds--Research Ornithology--Methodology Weather 1964-06-01 1964-07-31
Audubon field notes for winter migration 1963-1964 contributed by Frederick W. Kent Field notes Bird populations Bird watching Birds--Migration Birds--Research Ornithology--Methodology Weather 1963-12-01 1964-02-28
Eldon J. Bryant letter to Woodward H. Brown regarding spring migration, May 17, 1964 Correspondence Field notes Bird populations Bird watching Birds--Migration Birds--Research Ornithology--Methodology 1964-05-17 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