Prothonotary warbler, female, with billful of worms, at nest of five young in hollow cypress knee, May 17, 1930

Prothonotary warbler, female, with billful of worms, at nest of five young in hollow cypress knee, May 17, 1930, Container: Series VII: Box 18A, Folder: 109. Francis Harper papers, MS 245. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/533879 Accessed February 25, 2026.