Title Genres Topics Date (Start) Date (End)
Breeding Bird Atlas research notes through 1988 Maps (documents) Research notes Bird populations Birds--Counting Birds--Habitat Birds--Identification Ornithology--Societies, etc 1988-01-01 1988-12-31
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
Iowa map with Evening Grosbeak sightings, winter 1977-1978 Field notes Maps (documents) Bird watching Birds--Counting 1977-11-28 N/A
Tim Mason letter to Bob Howe regarding Double-crested Cormorant nesting, June 26, 1984 Correspondence Maps (documents) Birds--Nests Ciconiiformes | Herons, Bitterns, Egrets, Ibises, and Storks 1984-06-26 N/A