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. Author manuscript; available in PMC: 2014 Mar 1.
Published in final edited form as: Hear Res. 2012 Nov 29;297:113–120. doi: 10.1016/j.heares.2012.11.019

Figure 1.

Figure 1

Behavioral pure tone threshold data are shown for A) budgerigars (Dooling et al. 2006), B) European Starlings (Marean et al. 1993), and C) canaries (unpublished data).