No evidence for a role of trills in male response to territorial intrusion in a complex singer, the Thrush Nightingale

Abel Souriau, Radka Reifová, Adam Petrusek & Tereza Petrusková
Among the broad diversity of songbird vocalisations, song can serve a wide range of different functions depending on the species and context. In many species, aggressive motivation has often been linked with the use of fast repeated series of elements typically referred to as trills. However, only a few studies explored the role of this specific component in species with a large repertoire and high song complexity. Here, we investigate the potential role of trills...
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