Title Genres Topics Date (Start) Date (End)
The One hundred most common birds of Polk County, Iowa Reports Theses Bird surveys Birds--Identification Ornithology--Methodology 1926-06-04 N/A
The results of the 1984-85 winter raptor survey of Westfield Township, Fayette County, Iowa Reports Bird watching Birds--Behavior Birds--Counting Birds--Habitat Falconiformes | Hawks, Eagles, Falcons, Osprey, and Vultures Weather 1984-12-27 1985-02-23
The Screech Owl Reports Essays Birds--Habitat Birds--Identification Owls--Behavior N/A N/A
Tom Stone, Jr. field notes with bird sightings, summer 1979 Field notes Reports Bird watching Birds--Behavior Birds--Habitat Vireonidae | Vireos 1979-08-02 N/A
Waterfowl conditions in the Missouri Valley Reports Birds--Migration Anseriformes | Ducks, Geese, and Swans Wildlife conservation Wildlife refuges Waterfowl N/A N/A
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
Winter raptor survey, 1978 Maps (documents) Reports Bird watching Birds of prey Birds--Habitat Birds--Research Falconiformes | Hawks, Eagles, Falcons, Osprey, and Vultures Strigiformes | Owls 1978-12-01 1978-12-31
Woodward H. Brown field notes, winter 1979-1980 Field notes Reports Bird watching Birds--Food Birds--Research Accipitridae | Hawks and Eagles Ornithology--Methodology 1979-12-01 1980-02-28