A new Savannah sparrow from Mexico.
Series: [Field Museum of Natural History.  Publication] no. 475; Zoological series of Field Museum of Natural History, v. 24, no. 15; Fieldiana -- v. 24, no. 15; Publication (Field Museum of Natural History : 1909) -- 475
Published: 1940
Place of publication: Chicago
Subjects: Sparrows; Birds -- Mexico.