| Keywords: smithsonian institution smithsonianinstitution smithsonian institution archives smithsonianinstitutionarchives monochrome texture outdoor blackandwhite black and white Creator: William O. Wirtz  Local number: SIA2011-1365  Summary: RU 245 Box 230 Folder 40. A Gray-backed tern, April 1965, location unknown. This photograph was taken by researcher William O. Wirtz during his work with the Pacific Ocean Biological Survey Program.  Repository: Smithsonian Institution Archives  View more collections from the Smithsonian Institution. Creator: William O. Wirtz  Local number: SIA2011-1365  Summary: RU 245 Box 230 Folder 40. A Gray-backed tern, April 1965, location unknown. This photograph was taken by researcher William O. Wirtz during his work with the Pacific Ocean Biological Survey Program.  Repository: Smithsonian Institution Archives  View more collections from the Smithsonian Institution. |