Title Genres Topics Date (Start) Date (End)
Winter Raptor survey, 1977 Field notes Maps (documents) Reports Bird surveys Bird watching Birds of prey Birds--Research Ornithology--Methodology 1977-12-01 1977-12-31
Field notes contributed by James J. Dinsmore, winter 1982-1983 Field notes Reports Bird watching Birds--Research Ornithology--Methodology Fringillidae | Finches Water birds 1982-12-01 1983-02-28
Field notes contributed by Marion M. Brewer, winter 1982-1983 Field notes Reports Bird watching Birds--Counting Birds--Research Ornithology--Methodology 1982-12-01 1983-02-28
Field reports form for submitting seasonal observations of Iowa birds, Thomas H. Kent, winter 1982-1983 Field notes Reports Bird watching Birds--Counting Birds--Identification Birds--Research Anseriformes | Ducks, Geese, and Swans Laridae | Gulls and Terns Ornithology--Methodology 1982-12-01 1983-02-28
Field notes contributed by Ronald Harms, winter 1982-1983 Correspondence Field notes Reports Bird watching Birds--Counting Birds--Research Ornithology--Methodology 1982-12-01 1983-02-28
Field notes contributed by Peter C. Petersen, winter 1982-1983 Field notes Reports Bird watching Birds--Research Anseriformes | Ducks, Geese, and Swans Laridae | Gulls and Terns Ornithology--Methodology 1982-12-01 1983-02-28