Title Genres Topics Date (Start) Date (End)
Field notes contributed by Dick Bierman, February 24, 1982 Field notes Bird watching 1982-02-24 N/A
Field notes contributed by Dick Bierman, July 28, 1980 Field notes Bird watching Birds--Counting Birds--Nests Birdsongs Songbirds 1980-07-28 N/A
Field notes contributed by Dick Bierman, spring 1980 Field notes Reports Bird watching Birds--Counting Birds--Nests Birds--Research Ornithology--Methodology Turdidae | Thrushes 1980-03-01 1980-05-31
Field notes contributed by Dick Bierman, spring 1982 Field notes Forms (documents) Bird watching Birds--Nests 1982-03-01 1982-05-31
Field notes contributed by Dick Bierman, spring 1983 Field notes Forms (documents) Reports Bird watching Birds--Counting Birds--Migration Birds--Research Ornithology--Methodology Parulidae | Warblers Weather 1983-03-01 1983-05-31
Field notes contributed by Dick Bierman, spring 1987 Field notes Forms (documents) Bird watching Birds--Nests Weather 1987-03-01 1987-05-31
Field notes contributed by Dick Bierman, spring 1988 Field notes Forms (documents) Bird watching Birds--Eggs Birds--Nests 1988-03-01 1988-05-31
Field notes contributed by Dick Bierman, summer 1981 Field notes Reports Bird watching Birds--Counting Birds--Nests Birds--Research Ornithology--Methodology 1981-06-01 1981-07-31
Field notes contributed by Dick Bierman, summer 1985 Field notes Forms (documents) Bird watching Birds--Nests Birds--Infancy 1985-06-01 1985-07-31
Field notes contributed by Dick Bierman, summer 1989 Field notes Forms (documents) Bird banding Bird populations Bird watching Birds--Counting Birds--Nests 1989-06-01 1989-07-31
Field notes contributed by Dick Bierman, summer 1991 Field notes Forms (documents) Bird watching 1991-06-01 1991-07-31
Field notes contributed by Dick Bierman, summer 1993 Field notes Forms (documents) Bird banding Bird declines Bird watching Birds--Counting Birds--Nests Birds--Infancy 1993-06-01 1993-07-31
Field notes contributed by Dick Bierman, winter 1982-1983 Field notes Reports Bird feeders Bird watching Birds--Counting Birds--Research Weather 1982-12-01 1983-02-28
Field notes contributed by Doug Reeves, May 30, 1985 Correspondence Field notes Forms (documents) Bird watching Birds--Habitat Birdsongs 1985-05-30 N/A
Field notes contributed by Doug Reeves, summer 1986 Field notes Bird watching Birds--Nests Birds--Infancy 1986-06-01 1986-07-31
Field notes contributed by Doug Reeves, summer 1988 Field notes Bird feeders Bird watching Birds--Nests Birdsongs Nest building Scolopacidae | Sandpipers, Phalaropes, and allies Birds--Infancy Birds--Feeding and feeds 1988-06-01 1988-07-31
Field notes contributed by Douglas C. Harr, February 25, 1983 Correspondence Field notes Forms (documents) Animal migration--Climatic factors Bird watching Birds--Research Ornithology--Methodology Weather 1983-02-25 N/A
Field notes contributed by Douglas C. Harr, July 27, 2000 Field notes Bird watching Birds--Counting Birds--Nests Weather Birds--Infancy 2000-07-27 N/A
Field notes contributed by Douglas C. Harr, June 1, 1982 Field notes Forms (documents) Bird watching Parulidae | Warblers 1982-06-01 N/A
Field notes contributed by Douglas C. Harr, Larchwood, Iowa, February 28, 1984 Field notes Bird watching 1984-02-28 N/A
Field notes contributed by Douglas C. Harr, Larchwood, Iowa, May 31, 1984 Field notes Forms (documents) Bird populations Bird watching Fringillidae | Finches 1984-05-31 N/A
Field notes contributed by Douglas C. Harr, May 28, 1996 Field notes Reports Bird watching Birds--Counting Birds--Identification Birds--Migration Scolopacidae | Sandpipers, Phalaropes, and allies Weather 1996-05-28 N/A
Field notes contributed by Douglas C. Harr, November 28, 1984 Field notes Forms (documents) Bird watching Water birds Weather Birds--Infancy 1984-11-28 N/A
Field notes contributed by Douglas C. Harr, November 30, 1981 Field notes Bird watching Birds--Research Ornithology--Methodology 1981-11-30 N/A
Field notes contributed by Douglas Harr, fall 1983 Field notes Surveys (documents) Bird watching Birds of prey Charadriiformes | Shore-birds, Gulls, and Auks Water birds Weather 1983-08-01 1983-11-30