Title Genres Topics Date (Start) Date (End)
Lantern slide of a Mallard hen and ten young swimming Lantern slides Ducklings N/A N/A
Lantern slide and photograph of a pair of Mallards with ducklings Lantern slides Photographs Ducklings 1936-05-27 N/A
Lantern slide and photograph of a pair of Mallards swimming with ducklings Lantern slides Photographs Ducklings 1936-05-27 N/A
Lantern slide and photograph of a Mallard hen with eight ducklings Lantern slides Photographs Ducklings 1936-05-27 N/A
Keith M. Schreiner letter to Frederic Leopold regarding a Wood Duck nesting study paper, February 21, 1952 Correspondence Birds--Habitat Birds--Nests Ornithology--Study and teaching Predatory animals Squirrels--Behavior Ducklings 1952-02-21 N/A
Grace McManis letter to Frederic Leopold regarding Wood Ducks, May 15, 1966 Correspondence Bird banding Country life Birdhouses--Design and construction Aviculture Ducklings 1966-05-15 N/A
Frederic Leopold letter to Gus Glaser regarding Wood Duck houses, May 23, 1966 Correspondence Birdhouses--Design and construction Bird attracting Ducklings 1966-05-23 N/A
Frederic Leopold letter to Grace McManis regarding Wood Duck houses, May 17, 1966 Correspondence Birdhouses--Design and construction Birds--Feeding and feeds Ducklings 1966-05-17 N/A
Experiences with home grown Wood Ducks Lecture notes Reports Birds--Habitat Birds--Nests Predatory animals Eggs--Incubation Ducks--Counting Ducklings Wood duck--Behavior 1965-12-08 1965-12-09
Documents regarding a Wood Duck study, February 27, 1964 Checklists Correspondence Questionnaires Bird surveys Bird watchers Birds--Nests Birds--Research Ornithology--Methodology Predatory animals Ducks--Counting Ducklings 1964-02-27 N/A
Documents regarding a Wood Duck study, 1963 Correspondence Questionnaires Bird surveys Bird watching Birds--Nests Birds--Research Ornithology--Methodology Ducklings 1963-01-01 1963-12-31
A Comparison of two Iowa Duck nesting seasons Reports Drafts (documents) Birds--Habitat Birds--Nests Anseriformes | Ducks, Geese, and Swans Ducks--Counting Ducklings 1933-01-01 1934-12-31