scholarly article published in The Auk, April 1919

scholarly article by Alexander Wetmore published 1944 in Proceedings of the United States National Museum

scholarly article (1930)

scholarly article by Alexander Wetmore & Frederick C. Lincoln published 1933 in Proceedings of the United States National Museum

scientific article published in 1963

scholarly article published in The Auk, October 1941

1923

1922

scholarly article by Alexander Wetmore published 1932 in Proceedings of the United States National Museum

Washington, D.C.: U.S. Dept. of Agriculture, 1916.

Washington, D.C.: U.S. Dept. of Agriculture, 1923.

Washington, D.C.: U.S. Dept. of Agriculture, 1916.

scholarly article (1926)

Washington, National Geographic Society, 1920.

Washington, D.C.: U.S. Dept. of Agriculture, 1924.

Washington, D.C.: U.S. Dept. of Agriculture, 1925.

scholarly article published in The Condor in May 1933

scientific article (publication date: November 1931)

scientific article (publication date: 1937)

scholarly article published in The Condor in January 1931

scholarly article published in The Condor in May 1932

scholarly article published in The Condor in January 1933

scholarly article published in The Condor in March 1931

scholarly article published in The Auk, April 1957

scholarly article published in The Auk, January 1943

Washington, D.C.: U.S. Dept. of Agriculture, 1919

Washington, D.C.: U.S. Dept. of Agriculture, 1923.

1904-1905 | Smithsonian Institution Archives

Washington, D.C.: U.S. Dept. of Agriculture, 1915

scholarly article published in The Auk, April 1919

scholarly article published in The Auk, October 1926

scholarly article published in The Auk, April 1920

scholarly article published in The Auk, July 1920

Philadelphia: Turner & Fisher, publishers, 1842.

scientific article (publication date: April 1933)

scholarly article published in The Auk, April 1930

scholarly article published in The Auk, January 1917

scholarly article published in The Auk, July 1918

book by Alexander Wetmore

scholarly article published in The Auk, July 1920

scholarly article published in The Auk, October 1930

Washington: Smithsonian Institution, 1965-

Washington, D.C.: U.S. Dept. of Agriculture, 1918.

Cambridge, Harvard University Press, 1926.

scholarly article published in The Condor in May 1931

article

New York: Smithsonian Institution Series, inc., 1931.

Washington, D.C.: U.S. Dept. of Agriculture, 1921.