Title Genres Topics Date (Start) Date (End)
Field notes contributed by Paul Martsching, summer 1996 Field notes Bird watching Birds--Behavior Birdsongs Bird droppings 1996-06-01 1996-07-31
Field notes contributed by Paul Martsching, winter 1981-1982 Field notes Forms (documents) Bird watching Birds--Behavior Birds--Identification Rare birds 1981-12-01 1982-02-28
Field notes contributed by Paul Martsching, winter 1982-1983 Field notes Reports Bird watching Birds--Behavior Birds--Counting Birds--Identification Accipitridae | Hawks and Eagles 1982-12-01 1983-02-28
Field notes contributed by Pearl Knoop, Marble Rock, Iowa, spring 1984 Field notes Forms (documents) Bird watching Birds--Migration Tyrannidae | Flycatchers Fringillidae | Finches Hirundinidae | Swallows Parulidae | Warblers 1984-03-01 1984-05-31
Field notes contributed by Pearl Knoop, spring 1983 Field notes Reports Bird watching Birds--Counting Birds--Research Ornithology--Methodology 1983-03-01 1983-05-31
Field notes contributed by Peter B. Melde, summer 1997 Correspondence Field notes Bird watching Birds--Counting 1997-06-01 1997-07-31
Field notes contributed by Peter C. Petersen, fall 1982 Field notes Forms (documents) Bird watching Birds--Counting Laridae | Gulls and Terns Scolopacidae | Sandpipers, Phalaropes, and allies Parulidae | Warblers 1982-08-01 1982-11-30
Field notes contributed by Peter C. Petersen, fall 1984 Field notes Bird watching Birds--Identification 1984-08-01 1984-11-30
Field notes contributed by Peter C. Petersen, fall 1986 Field notes Bird watching Birds--Identification 1986-08-01 1986-11-30
Field notes contributed by Peter C. Petersen, fall 1987 Field notes Reports Bird populations Bird watching Birds--Counting Birds--Identification Laridae | Gulls and Terns Scolopacidae | Sandpipers, Phalaropes, and allies Parulidae | Warblers Emberizidae | Sparrows 1987-08-01 1987-11-30
Field notes contributed by Peter C. Petersen, fall 1991 Field notes Bird watching Birds--Counting Birds--Identification Birds--Nests Laridae | Gulls and Terns Scolopacidae | Sandpipers, Phalaropes, and allies Parulidae | Warblers Birds--Infancy 1991-08-01 1991-11-30
Field notes contributed by Peter C. Petersen, fall 1993 Field notes Reports Bird feeders Bird watching Birds--Counting Birds--Identification Birds--Migration Charadriiformes | Shore-birds, Gulls, and Auks Parulidae | Warblers 1993-08-01 1993-11-30
Field notes contributed by Peter C. Petersen, fall 1995 Field notes Bird watching Birds--Counting Birds--Identification 1995-08-01 1995-11-30
Field notes contributed by Peter C. Petersen, fall 1996 Field notes Bird banding Bird watching Birdsongs 1996-08-01 1996-11-30
Field notes contributed by Peter C. Petersen, January 26, 1982 Field notes Forms (documents) Bird banding Bird watching 1982-01-26 N/A
Field notes contributed by Peter C. Petersen, spring 1980 Field notes Forms (documents) Bird banding Bird watching Birds--Counting Birds--Nests Tyrannidae | Flycatchers Scolopacidae | Sandpipers, Phalaropes, and allies Parulidae | Warblers Weather Troglodytidae | Wrens Birds--Feeding and feeds 1980-03-01 1980-05-31
Field notes contributed by Peter C. Petersen, spring 1982 Field notes Forms (documents) Bird watching Laridae | Gulls and Terns Scolopacidae | Sandpipers, Phalaropes, and allies Parulidae | Warblers 1982-03-01 1982-05-31
Field notes contributed by Peter C. Petersen, spring 1988 Field notes Bird watching Birds--Identification Birdsongs 1988-03-01 1988-05-31
Field notes contributed by Peter C. Petersen, spring 1992 Field notes Bird watching Birds--Eggs Birdsongs Parulidae | Warblers 1992-03-01 1992-05-31
Field notes contributed by Peter C. Petersen, spring 1996 Checklists Field notes Bird watching Birds--Counting Birds--Identification Birdsongs Anseriformes | Ducks, Geese, and Swans Scolopacidae | Sandpipers, Phalaropes, and allies Hirundinidae | Swallows Parulidae | Warblers Emberizidae | Sparrows 1996-03-01 1996-05-31
Field notes contributed by Peter C. Petersen, spring 1997 Field notes Bird watching Birds--Counting Birdsongs Emberizidae | Sparrows 1997-03-01 1997-05-31
Field notes contributed by Peter C. Petersen, summer 1980 Field notes Forms (documents) Bird watching Birds--Counting Birds--Research 1980-06-01 1980-07-31
Field notes contributed by Peter C. Petersen, summer 1987 Field notes Reports Bird watching Birds--Counting Birds--Nests Anseriformes | Ducks, Geese, and Swans Laridae | Gulls and Terns Scolopacidae | Sandpipers, Phalaropes, and allies Parulidae | Warblers Emberizidae | Sparrows 1987-06-01 1987-07-31
Field notes contributed by Peter C. Petersen, summer 1988 Field notes Bird watching Birds--Counting Birds--Identification Birdsongs 1988-06-01 1988-07-31
Field notes contributed by Peter C. Petersen, summer 1989 Field notes Forms (documents) Bird populations Bird watching Birds--Behavior Birds--Counting 1989-06-01 1989-07-31