Title Genres Topics Date (Start) Date (End)
Iowa Birdline update, March 27, 1989 Field notes Bird watching Birds--Migration Passeriformes | Perching-birds and songbirds Waterfowl Dial-a-message telephone calls 1989-03-27 N/A
Iowa Birdline update, November 6, 1989 Field notes Bird watching Birds--Migration Waterfowl Dial-a-message telephone calls 1989-11-06 N/A
Iowa Birdline update, April 2, 1990 Field notes Bird watching Birds--Migration Anseriformes | Ducks, Geese, and Swans Waterfowl Dial-a-message telephone calls 1990-04-02 N/A
Iowa Birdline update, March 26, 1990 Field notes Bird watching Birds--Migration Anseriformes | Ducks, Geese, and Swans Waterfowl Dial-a-message telephone calls 1990-03-26 N/A
Iowa Birdline Update, March 12, 1990 Field notes Bird watching Icteridae | Blackbirds, Orioles, Meadowlarks, and allies Anseriformes | Ducks, Geese, and Swans Laridae | Gulls and Terns Waterfowl Dial-a-message telephone calls 1990-03-12 N/A
Iowa Birdline update, March 5, 1990 Field notes Bird watching Birds--Migration Icteridae | Blackbirds, Orioles, Meadowlarks, and allies Anseriformes | Ducks, Geese, and Swans Waterfowl Dial-a-message telephone calls 1990-03-05 N/A
Iowa Birdline update, February 12, 1990 Field notes Bird watching Anseriformes | Ducks, Geese, and Swans Laridae | Gulls and Terns Waterfowl Dial-a-message telephone calls 1990-02-12 N/A
Letter to I.T. Bode regarding Waterfowl conditions that might affect Iowa, January 3, 1934 Correspondence Reports Bird surveys Birds--Counting Fowling Water levels Waterfowl 1934-01-03 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
Frederic Leopold letter to the editor of the St. Paul Pioneer Press Dispatch regarding hunting and the effect on duck populations, April 27, 1988 Correspondence Birds--Conservation Hunting--Moral and ethical aspects Wildlife habitat improvement Waterfowl management Duck populations 1988-04-27 N/A
Frederic Leopold letter to A.S. Hawkins regarding hunting and the effect on duck populations, January 13, 1988 Correspondence Birds--Conservation Birds--Habitat Hunting--Moral and ethical aspects Wildlife habitat improvement Waterfowl management Duck populations 1988-01-13 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
A plan to save our ducks Reports Essays Birds--Conservation Birds--Habitat Wildlife conservation--Law and legislation Waterfowl management Duck populations N/A N/A