FIGURE 2 in Species limits in Pteruthius (Aves: Corvida) shrike-babblers: a comparison between the Biological and Phylogenetic Species Concepts

2018-05-23T16:00:00Z (GMT) by Rheindt, Frank E. Eaton, James A.
FIGURE 2. Sonogram excerpts of song type A (shared between Java and mainland) and song type B (Java only) of the P. aenobarbus complex, accompanied by sampling locality and name of recordist; x-axis depicts time in seconds, y-axis depicts frequency in kHz; XC number refers to catalogue number in the xeno-canto sound collection and is given where applicable.

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