The geographical distribution of color and of other variable characters in the genus Junco : a new aspect of specific and subspecific values. Bulletin of the AMNH ; v. 38, article 9.

Dwight, Jonathan, 1858-1929.2005-10-062005-10-061918http://hdl.handle.net/2246/1909p. 269-309, [3] leaves of plates ; col. ill., maps ; 24 cm.Includes bibliographical references.7001673 bytesapplication/pdfen-USQH1 .A4 vol.38, art.9, 1918Juncos -- Geographical distribution.Juncos -- Color.JuncosBirds -- North America -- Geographical distribution.Birds -- Color -- North America.Birds -- North AmericaThe geographical distribution of color and of other variable characters in the genus Junco : a new aspect of specific and subspecific values. Bulletin of the AMNH ; v. 38, article 9.Distribution of color in the genus Juncotext