Title Genres Topics Date (Start) Date (End)
Lantern slide and photograph of Walter Rosene on an observation tower investigating a Great Horned Owl nest Lantern slides Photographs Bird watchers Birds--Nests Ornithology--Methodology 1932-05-01 N/A
Lantern slide and photograph of Walter Rosene on a ladder attached to a tree Lantern slides Photographs Bird watchers Birds--Nests Ornithology--Methodology N/A N/A
Lantern slide and photograph of an umbrella blind for photographing birds Lantern slides Photographs Ornithology--Methodology Photography of birds N/A N/A