Title Genres Topics Date (Start) Date (End)
Letter and bird sighting checklist from Robert and Valerie Jessen to Vernon M. Kleen, spring migration 1974 Checklists Correspondence Field notes Bird banding Bird populations Bird watching Birds--Behavior Birds--Nests Falconiformes | Hawks, Eagles, Falcons, Osprey, and Vultures 1974-03-01 1974-05-31
Bird sighting checklist, fall 1979 Checklists Field notes Bird populations Bird watching Birds--Identification 1979-08-01 1979-11-30
Iowa Breeding Bird Atlas checklist form Checklists Instructional materials Bird populations Bird surveys Bird watching Birds--Identification Environmental monitoring 1987-01-01 1987-12-31