↑Weibel, A. C., Moore, W. S., 2002: Molecular Phylogeny of a Cosmopolitan Group of Woodpeckers (Genus Picoides) Based on COI and cyt b Mitochondrial Gene Sequences, Molecular Phylogenetics and Evolution22: 65–75.
↑Moore, W. S., Weibel, A. C., Agius, A., 2006: Mitochondrial DNA phylogeny of the woodpecker genus Veniliornis (Picidae, Picinae) and related genera implies convergent evolution of plumage patterns, Biological Journal of the Linnean Society87: 611–624.
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