Title Genres Topics Date (Start) Date (End)
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
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
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
Field report from Dubuque, June 1977 Field notes Bird populations Bird watching 1977-06-01 1977-06-30
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
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
1977 Spring Report, parts I and II Field notes Bird declines Bird populations Bird watching Birds--Migration 1977-03-01 1977-05-31
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
Bird sighting checklist, fall 1979 Checklists Field notes Bird populations Bird watching Birds--Identification 1979-08-01 1979-11-30
Field notes contributed by Tanya Bray, summer 1987 Field notes Forms (documents) Reports Bird populations Bird watching Birds--Counting 1987-06-01 1987-07-31
Field reports form for submitting seasonal observations of Iowa birds, Douglas C. Harr, summer 1987 Field notes Forms (documents) Bird populations Bird watching Birds--Counting Birds--Nests Weather Birds--Infancy 1987-06-01 1987-07-31
Field notes contributed by Dean Mosman, summer 1987 Field notes Reports Bird populations Bird watching Birds--Counting Birds--Nests Weather Birds--Infancy 1987-06-01 1987-07-31
Field reports form for submitting seasonal observations of Iowa birds and letter to James J. Dinsmore contributed by James P. Sandrock, August 2, 1987 Correspondence Field notes Forms (documents) Bird declines Bird populations Bird watching Birds--Counting Birds--Identification Birdsongs 1987-08-02 N/A