Fig. 4

WGCNA module preservation analysis results between low-singing and high-singing starlings depicted as a Zsummary, a composite value of Z-statistics representing module connectivity and density, mapped against module size. The grey module is excluded. If a module had a Zsummary < 2, it was considered not preserved across conditions. Pink and magenta were the only modules not preserved across condition, while all other modules maintained some form of preservation in both singing groups