Journal Article Song Dialects in Several Populations of Mountain White-Crowned Sparrows (Zonotrichia Leucophrys Oriantha) in the Sierra Nevada Get access Jorge E. Orejuela, Jorge E. Orejuela Biology Department Occidental College Los Angeles, California 90041 Search for other works by this author on: Oxford Academic Google Scholar Martin L. Morton Martin L. Morton Biology Department Occidental College Los Angeles, California 90041 Search for other works by this author on: Oxford Academic Google Scholar The Condor, Volume 77, Issue 2, 1 April 1975, Pages 145–153, https://doi.org/10.2307/1365784 Published: 01 April 1975 Article history Accepted: 01 February 1974 Published: 01 April 1975
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