Title Genres Topics Date (Start) Date (End)
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
The One hundred most common birds of Polk County, Iowa Reports Theses Bird surveys Birds--Identification Ornithology--Methodology 1926-06-04 N/A
Birds of Polk County Iowa Reports Publications (documents) Bird surveys Ornithology--Bibliography Ornithology--Methodology 1931-10-01 1931-10-31
Directory for the collecting of bird specimens in Iowa for scientific purposes Reports Birds--Geographical distribution Birds--Research Ornithology--Study and teaching Birds--Collection and preservation 1935-04-01 1935-04-30
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
Nesting Wood Duck study (35 Years) Reports Tables (documents) Birds--Eggs Birds--Nests Birds--Research Ornithology--Methodology Birdhouses Predatory animals Waterfowl management Eggs--Incubation Ducks--Counting Ducklings Wood duck--Behavior 1984-01-01 1984-12-31