Title Genres Topics Date (Start) Date (End)
Field notes contributed by John Van Dyk, winter 1982-1983 Field notes Reports Bird declines Bird populations Bird watching Birds--Research Anseriformes | Ducks, Geese, and Swans Accipitridae | Hawks and Eagles Galliformes | Quails, Pheasants, Turkeys, and Grouse Weather 1982-12-01 1983-02-28
Iowa Ornithologists' Union, field report compiled data, Mallard, 1979-1983 Field notes Bird watching Birds--Counting Birds--Research 1979-11-11 1983-02-28
Iowa Ornithologists' Union, field report compiled data, American Crow, 1979-1983 Field notes Bird watching Birds--Counting Birds--Research 1979-08-01 1983-02-28
Field reports form for submitting seasonal observations of Iowa birds, Robert E. Thornburg, winter 1982-1983 Field notes Forms (documents) Bird watching Birds--Counting Birds--Research Anseriformes | Ducks, Geese, and Swans 1982-12-01 1983-02-28
Iowa Ornithologists' Union, field report compiled data, Great Horned Owl, 1980-1983 Field notes Bird watching Birds--Counting Birds--Research 1980-02-23 1983-03-02
Iowa Ornithologists' Union, field report compiled data, Brown Thrasher, 1980-1983 Field notes Bird watching Birds--Counting Birds--Research 1980-04-06 1983-03-07
Iowa Ornithologists' Union, field report compiled data, Bufflehead, 1950-1983 Field notes Bird watching Birds--Counting Birds--Research 1950-10-08 1983-03-08
Iowa Ornithologists' Union, field report compiled data, Common Merganser, 1942-1983 Field notes Bird watching Birds--Counting Birds--Research 1942-05-22 1983-03-12
Iowa Ornithologists' Union, field report compiled data, Fox Sparrow, 1979-1983 Field notes Bird watching Birds--Counting Birds--Research 1979-10-28 1983-03-12
Iowa Ornithologists' Union, field report compiled data, Long-billed Dowitcher, 1979-1983 Field notes Bird watching Birds--Counting Birdsongs Birds--Research Birds--Infancy 1979-10-13 1983-03-16
Iowa Ornithologists' Union, field report compiled data, Golden Eagle, 1979-1983 Field notes Bird watching Birds--Counting Birds--Research Birds--Infancy 1979-11-24 1983-03-19
Iowa Ornithologists' Union, field report compiled data, Swamp Sparrow, 1980-1983 Field notes Bird watching Birds--Counting Birds--Research 1980-05-19 1983-03-20
Iowa Ornithologists' Union, field report compiled data, Field Sparrow, 1980-1983 Field notes Bird watching Birds--Counting Birds--Research 1980-02-12 1983-03-20
Iowa Ornithologists' Union, field report compiled data, Northern Shrike, 1979-1983 Field notes Bird watching Birds--Counting Birds--Research 1979-11-17 1983-03-21
Iowa Ornithologists' Union, field report compiled data, White-throated Sparrow, 1980-1983 Field notes Bird watching Birds--Counting Birds--Research 1980-02-27 1983-03-21
Iowa Ornithologists' Union, field report compiled data, Long-eared Owl, 1979-1983 Field notes Bird watching Birds--Counting Birds--Research 1979-06-01 1983-03-25
Iowa Ornithologists' Union, field report compiled data, Mute Swan, 1980-1983 Field notes Bird watching Birds--Counting Birds--Research 1980-04-04 1983-03-27
Iowa Ornithologists' Union, field report compiled data, Purple Martin, 1962-1983 Field notes Bird watching Birds--Counting Birds--Research 1962-03-23 1983-03-31
Iowa Ornithologists' Union, field report compiled data, Ross' Goose, 1982-1983 Field notes Bird watching Birds--Counting Birds--Research 1982-11-04 1983-03-31
Iowa Ornithologists' Union, field report compiled data, Red-breasted Nuthatch, 1983 Field notes Bird watching Birds--Counting Birds--Research 1983-01-01 1983-04-03
Iowa Ornithologists' Union, field report compiled data, Glaucous Gull, 1982-1983 Field notes Bird watching Birds--Counting Birds--Research 1982-03-19 1983-04-04
Iowa Ornithologists' Union, field report compiled data, Northern Saw-whet Owl, 1979-1983 Field notes Bird watching Birds--Counting Birds--Research 1979-12-29 1983-04-10
Iowa Ornithologists' Union, field report compiled data, White-winged Scoter, 1981-1983 Field notes Bird watching Birds--Counting Birds--Research 1981-03-06 1983-04-10
Iowa Ornithologists' Union, field report compiled data, Song Sparrow, 1982-1983 Field notes Bird watching Birds--Counting Birds--Research 1982-04-24 1983-04-10
Iowa Ornithologists' Union, field report compiled data, Northern Rough-winged Swallow, 1960-1983 Field notes Bird watching Birds--Counting Birds--Research 1960-04-16 1983-04-13