Fifty Birds of Town and City, book, 1973; (https://digital.library.unt.edu/ark:/67531/metadc1047/m1/1/: accessed July 18, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .
Fifty Birds of Town and City, book, 1973; (https://digital.library.unt.edu/ark:/67531/metadc1047/m1/1/: accessed July 18, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .