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. Author manuscript; available in PMC: 2020 May 1.
Published in final edited form as: J Exp Zool B Mol Dev Evol. 2019 Apr 19;332(3-4):92–98. doi: 10.1002/jez.b.22853

Figure 2.

Figure 2

The song control nucleus HVC of Turdus rufiventris. Nissl stained brain sections of T. rufiventris showing the HVC nuclei of female (a), and male during non-breeding (b) and breeding (c) seasons. The average volumes of the HVC were compared between non-breeding and breeding males. A single asterisk denotes a significant difference (P value of 0.0125) between designated groups. Error bars represent the standard error of the mean (d). Arrows denote the HVC nuclei. Scale bars are 0.2mm (a-c) and 0.05mm on close-up squares at the bottom left of each image.