Syllable and sequence sharing.

<p>Mean ± SE (<i>n = </i>7 pairs for each category) syllable repertoire sharing (A graph) and sequence of 3 to 10 syllables repertoire sharing (B graph) between adjacent neighbours (squares), distant neighbours (circles) and strangers (triangles). Adjacent and distant neighbours share a similar amount of syllables and sequences in their songs and more syllables and sequences than strangers (Exact paired permutation test using the Monte Carlo method, *** <i>p</i><0.001).