(*a*) overall phenotypic divergence |

one rate | 0.0061 | 16.09 | 0.018 | n.a. | 0.62 | 7.82 |

no divide/divide | 0.0097/0.0038 | 10.79 | 0.040/0.0061 | n.a. | 1.18/0.18 | 3.73 |

overlap | 0.0066 | 17.95 | 0.039 | 0.17 (0.0040–3.86) | 2.90 | 5.79 |

no divide/divide and overlap | 0.014/0.0035 | 7.88 | 0.042/0.0081 | 0.0041 (−0.043–5.80) | 0.078 (−0.0065–2.43) | 1.29/0.68 | **0** |

(*b*) song divergence |

one rate | 0.0053 | 20.94 | 0.013 | n.a. | 0.48 | 13.55 |

no divide/divide | 0.0092/0.0028 | 12.44 | 0.021/0.0085 | n.a. | 0.42/0.69 | 3.81 |

overlap | 0.0061 | 21.44 | 0.013 | 0.0051 (−0.016–1.87) | 0.01 | 15.74 |

no divide/divide and overlap | 0.013/0.0029 | 7.96 | 0.015/0.0073 | −0.01 (−0.033–0.81) | 0.095 (0.0088–2.62) | 0.20/1.13 | **0** |

(*c*) colour divergence |

one rate | 0.0087 | 14.36 | 0.020 | n.a. | 0.43 | 8.32 |

no divide/divide | 0.014/0.0053 | 8.59 | 0.037/0.0092 | n.a. | 0.57/0.24 | 3.36 |

overlap | 0.0079 | 16.22 | 0.037 | 0.20 (0.0061–5.59) | 2.01 | 4.03 |

no divide/divide and overlap | 0.017/0.0052 | 8.14 | 0.063/0.0091 | 0.49 (−0.020–13.57) | 0.0091 (−0.014–4.29) | 4.36/0.35 | **0** |

(*d*) morphological divergence |

one rate | 0.0078 | 20.92 | 0.021 | n.a. | 0.56 | 14.57 |

no divide/divide | 0.011/0.0056 | 17.97 | 0.14/0.0059 | n.a. | 6.43/0.018 | 4.88 |

overlap | 0.0086 | 22.36 | 0.17 | 0.98 (−0.0095–5.31) | 11.29 | 10.34 |

no divide/divide and overlap | 0.015/0.0047 | 12.59 | 0.14/0.012 | −0.018 (−0.097–0.0013) | 0.16 (−0.036–6.25) | 5.71/0.76 | **0** |