Title Genres Topics Date (Start) Date (End)
Photograph of a Wood Duck duckling jumping from duck house Photographs Birds--Research Birdhouses Ducklings Wood duck--Behavior 1966-05-01 1966-05-31
Photograph of recently hatched Wood Duck ducklings and egg shells in a duck house Photographs Birds--Eggs Birds--Research Ducklings 1966-05-01 1966-05-31
Photograph of a snake in a Wood Duck house Photographs Birds--Research Birdhouses Predatory animals 1965-01-01 1965-12-31
Photograph of Wood Duck houses in trees Photographs Birds--Research Birdhouses 1965-01-01 1965-12-31
Photograph of a male and female Wood Duck in a tree Photographs Birds--Habitat Birds--Research 1965-01-01 1965-12-31
Photograph of Frederic Leopold on a ladder checking a Wood Duck house Photographs Bird watchers Birds--Research Birdhouses 1965-01-01 1965-12-31
Photograph of Wood Duck ducklings swimming in a bucket Photographs Birds--Research Ducklings Wood duck--Behavior 1965-01-01 1965-12-31
Photograph of a Wood Duck in a house Photographs Birds--Research Ornithology--Methodology Birdhouses--Design and construction 1965-01-01 1965-12-31
Photograph of an adult Wood Duck leaving a duck house Photographs Birds--Research Birdhouses Wood duck--Behavior 1965-01-01 1965-12-31
Photograph of a mother Wood Duck with ducklings on the ground Photographs Birds--Research Ducklings Wood duck--Behavior 1965-01-01 1965-12-31
Photograph of a snake among duck eggs in a Wood Duck house Photographs Birds--Eggs Birds--Research Birdhouses Predatory animals 1965-01-01 1965-12-31
Photograph of a male and female Wood Duck in a tree Photographs Birds--Habitat Birds--Research Wood duck--Behavior 1965-01-01 1965-12-31
Photograph of the inside bottom of a Wood Duck house Photographs Birds--Research Birdhouses 1965-01-01 1965-12-31
Photograph of a Rough-legged Hawk roost Photographs Birds--Habitat 1960-11-01 1961-02-28
Photograph of a Wood Duck perched on a Wood Duck house Photographs Birds--Habitat Birds--Research Birdhouses 1960-01-01 1960-12-31
Photograph of a Wood Duck house Photographs Birds--Research Birdhouses 1960-01-01 1960-12-31
Photograph of a Wood Duck house and an observation blind in front of Frederic Leopold's house Photographs Birds--Research Birdhouses 1960-01-01 1960-12-31
Walter Rosene personal reminiscences of nature study and bird work at Ledges State Park Diaries Photographs Narratives (literary works) Bird watching Birds--Counting Birds--Nests Birds--Research Parks--Iowa Birds--Anecdotes 1918-01-01 1941-12-31
Photograph of Frederic Leopold and John Hale near Two Key Island, Mississippi River above Iowa River Photographs Fowling 1940-01-01 1940-12-31
Lantern slide and photograph of a Bluebird perching at a birdhouse Lantern slides Photographs Bird watching Turdidae | Thrushes 1937-01-01 1937-12-31
Photograph of a Mallard hen and ten ducklings swimming Photographs Ducklings 1935-08-01 1935-08-31
Photograph of a group on a bird hike Photographs Bird watchers 1935-08-01 1935-08-31
Lantern slide and photograph of a Ruby-throated Hummingbird in a nest Lantern slides Photographs Birds--Nests 1934-01-01 1934-12-31
Lantern slide and photograph of a Cowbird egg in a nest Lantern slides Photographs Birds--Eggs Birds--Nests 1934-01-01 1934-12-31
Lantern slide and photograph of the contents found in a Great Horned Owl nest Lantern slides Photographs Birds--Food 1934-03-04 1934-03-13