Title Genres Topics Date (Start) Date (End)
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, spring 1997 Field notes Bird watching Birds--Counting Birdsongs Emberizidae | Sparrows 1997-03-01 1997-05-31
Field notes and Peter C. Petersen letter to James J. Dinsmore, July 28, 1986 Correspondence Field notes Bird feeders Bird watching Birds--Counting Birds--Food Birds--Identification Birds--Nests Birds--Infancy 1986-07-28 N/A
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, 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 1991 Field notes Forms (documents) Bird watching Birds--Behavior Birds--Counting Birds--Identification Birds--Infancy 1991-06-01 1991-07-31
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, 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 and Peter Ernzen letter to Thomas H. Kent, fall 1991 Correspondence Field notes Forms (documents) Bird watching Birds--Counting Birds--Identification Birdsongs Parulidae | Warblers Birds--Infancy Emberizidae | Sparrows 1991-08-01 1991-11-30
Field notes and Peter Ernzen letter to Thomas H. Kent, spring 1997 Correspondence Field notes Bird feeders Bird watching Birds--Counting Birds--Identification Vireonidae | Vireos Parulidae | Warblers 1997-03-01 1997-05-31
Field notes contributed by Peter Ernzen, fall 1996 Correspondence Field notes Bird watching Birds--Counting Birds--Identification Podicipediformes | Grebes Parulidae | Warblers Birds--Infancy 1996-08-01 1996-11-30
Field check list contributed by Peter P. Wickham, spring 1987 Checklists Field notes Bird watching Birds--Counting Birdsongs Anseriformes | Ducks, Geese, and Swans Tyrannidae | Flycatchers 1987-03-01 1987-05-31
Field notes contributed by Philip J. Walsh, fall 1995 Field notes Bird feeders Bird watching Birds--Counting Birds--Identification Birds--Infancy 1995-08-01 1995-11-30
Field notes contributed by Philip J. Walsh, spring 1997 Field notes Bird watching Birds--Counting Birds--Identification 1997-03-01 1997-05-31
Field notes contributed by Philip J. Walsh, summer 1996 Field notes Bird feeders Bird watching Birds--Counting Birds--Identification 1996-06-01 1996-07-31
Field notes contributed by Raymond L. Cummins, fall 1988 Field notes Forms (documents) Bird watching Birds--Counting Birds--Identification Weather 1988-08-01 1988-11-30
Field notes contributed by Raymond L. Cummins, spring 1980 Field notes Reports Bird watching Birds--Counting Birds--Research Tyrannidae | Flycatchers Podicipediformes | Grebes Laridae | Gulls and Terns Ornithology--Methodology Turdidae | Thrushes Parulidae | Warblers Troglodytidae | Wrens 1980-03-01 1980-05-31
Report form for selected species in spring, contributed by Raymond L. Cummins, spring 1988 Field notes Forms (documents) Bird watching Birds--Counting Birds--Identification Birdsongs Parulidae | Warblers 1988-03-01 1988-05-31
Field notes contributed by Raymond L. Cummins, summer 1980 Field notes Forms (documents) Bird watching Birds--Counting Birds--Nests Tyrannidae | Flycatchers 1980-06-01 1980-07-31
Field notes contributed by Raymond L. Cummins, summer 1988 Field notes Forms (documents) Bird watching Birds--Counting Birds--Identification Birdsongs 1988-06-01 1988-07-31
Field notes contributed by Raymond L. Cummins, fall 1995 Field notes Forms (documents) Bird watching Birds--Counting Anseriformes | Ducks, Geese, and Swans Laridae | Gulls and Terns Scolopacidae | Sandpipers, Phalaropes, and allies Parulidae | Warblers 1995-08-01 1995-11-30
Field notes contributed by Raymond L. Cummins, fall 1991 Field notes Forms (documents) Bird watching Birds--Counting Birds--Identification Birdsongs Parulidae | Warblers Emberizidae | Sparrows 1991-08-01 1991-11-30
Field notes contributed by Raymond L. Cummins, fall 1996 Field notes Bird watching Birds--Counting Birdsongs Anseriformes | Ducks, Geese, and Swans Scolopacidae | Sandpipers, Phalaropes, and allies Parulidae | Warblers Birds--Infancy 1996-08-01 1996-11-30
Field notes contributed by Raymond L. Cummins, spring 1997 Field notes Forms (documents) Bird watching Birds--Counting Birds--Identification 1997-03-01 1997-05-31
Field notes contributed by Raymond L. Cummins, summer 1996 Field notes Bird watching Birds--Counting Birdsongs Parulidae | Warblers 1996-06-01 1996-07-31