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This Concept Map, created with IHMC CmapTools, has information related to: CMap 2.3 Evolution of Bird Song Learning, by two hypotheses which are "Convergent Evolution" Hypothesis of Song Learning in 3 separarate lineages of bird, by two hypotheses which are "Ancestral Stock" Hypothesis, by two hypotheses because only 3 of 23 orders of bird must learn their songs, The Evolution of Bird Song Learning asks When, in the evolutionary past, did bird song (and subsequentlysong dialect) evolve., When, in the evolutionary past, did bird song (and subsequentlysong dialect) evolve. involving an "ultimate causes" analysis, only 3 of 23 orders of bird must learn their songs including ????, song learning originated in one ancestral group and then song learning was ...., ???? which are phylogenetically "distant" from each other, The final paragraph of This Section (2.3) addresses the question: ????, only 3 of 23 orders of bird must learn their songs including "songbirds" (Oscine Passeriformes) including the White-Crowned Sparrow, "songbirds" (Oscine Passeriformes) including the White-Crowned Sparrow which are phylogenetically "distant" from each other, "Ancestral Stock" Hypothesis for which song learning originated in one ancestral group, ???? which are phylogenetically "distant" from each other, only 3 of 23 orders of bird must learn their songs including ????, an "ultimate causes" analysis and is addressed by two hypotheses, "Convergent Evolution" Hypothesis of Song Learning in 3 separarate lineages of bird for which song learning evolved 3 separate times (once in each of the 3 lineages)