Title Genres Topics Date (Start) Date (End)
Photograph of a bird watching blind Photographs Bird watching Birding sites 1929-05-29 N/A
Photograph of a Bell's Vireo feeding young Photographs Birds--Infancy 1940-06-30 N/A
Lantern slide and photograph of eggs in a Barred Owl nest Lantern slides Photographs Birds--Eggs 1928-03-19 N/A
Lantern slide and photograph of eggs in a Barred Owl nest Lantern slides Photographs Birds--Eggs 1928-03-30 N/A
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