Title Genres Topics Date (Start) Date (End)
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
Report to Wood Duck observers with attached mailing list, September 13, 1963 Reports Bird surveys Bird watchers Birds--Nests Birds--Research Ornithology--Methodology Birdhouses--Design and construction Ducks--Counting 1963-09-13 N/A
Checklist of Iowa birds Administrative reports Checklists Bird watching Birds--Identification Birds--Nomenclature Birds--Research Ornithology--Methodology 1962-01-01 1962-12-31
Iowa Distributional Check-list Administrative reports Checklists Bird watching Birds--Geographical distribution Birds--Identification Birds--Research Ornithology--Methodology 1954-01-01 1954-12-31
Summary of Bird Banding Reports Bird banding Bird watching Birds--Migration Ornithology--Methodology Strigiformes | Owls 1937-04-01 1937-04-30
Clarence Cottam letter to Walter Rosene regarding the analysis and contents of Long-eared Owl pellets, May 28, 1936 Correspondence Reports Birds--Research Ornithology--Methodology Bird droppings 1936-05-28 N/A
Bird Banding Near Fairfield During 1936-1937 Reports Tables (documents) Bird banding Ornithology--Methodology Hunting--Moral and ethical aspects Birds--Mortality 1936-01-01 1937-12-31
Great Horned Owl nesting study and research notes Reports Research notes Essays Bird banding Birds--Eggs Birds--Food Birds--Nests Birds--Research Ornithology--Methodology Birds--Infancy Eggs--Incubation 1933-02-26 1939-12-31
Birds of Polk County Iowa Reports Publications (documents) Bird surveys Ornithology--Bibliography Ornithology--Methodology 1931-10-01 1931-10-31
The One hundred most common birds of Polk County, Iowa Reports Theses Bird surveys Birds--Identification Ornithology--Methodology 1926-06-04 N/A
The Iowa Breeding Bird Atlas Project Administrative reports Maps (documents) Bird populations Bird surveys Ornithology--Methodology Environmental monitoring Publishers and publishing N/A N/A
Report on a revised birds of Iowa Reports Drafts (documents) Bird watching Bird watching--Guidebooks Birds--Identification Ornithology--Methodology Zoological specimens N/A N/A
Iowa Ornithologists' Union programs Administrative reports Bird populations Bird surveys Birds--Research Ornithology--Methodology N/A N/A
Iowa Ornithologists' Union programs, comments and analysis Administrative reports Bird populations Birds--Habitat Birds--Research Ornithology--Methodology Laniidae | Shrikes Fringillidae | Finches Birds--Feeding and feeds N/A N/A