Showing 85 to 96 of 665 results for "1950s".
Field data sheets show the species observed during the 1952 bird census at the Audubon Camp of Maine.
Collection: Audubon Camp Curricula Date: 1952
Cruickshank summarizes bird observations made at various locations in Lincoln County, Maine.
Cruickshank notes observations of special interest. The observations for 1953 to 1955 have been added by hand.
Collection: Audubon Camp Curricula Date: 1952 - 1955
Collection: Audubon Camp Management Date: 1952 - 1968
Collection: Hog Island Images Collection Date: 1952
Collection: Audubon Camp Management Date: 1952
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