On Two Abnormally Colored Specimens of the Bluebird (Sialia sialis)
Ridgway, Robert, 1850-1929
Article
1886
The Auk
3
282--283
BioStor
English
Washington, D.C, American Ornithologists' Union, etc, 1884-
BioStor: https://biostor.org/reference/125015 DOI: https://doi.org/10.2307/4625396