Among 11 bird families which have at least one species breeding in the wild, the escaping rate was significantly higher for four families : sturnidae, timaliidae, cacatuidae, and pycnonotidae; and the breeding rate was significantly higher for only one family-estrildidae 有11科的鸟种有野外繁殖的纪?,这11科鸟种中有四科的鸟种逃??显着的高于总逃??,它们分别是椋鸟科、画眉科、凤头鹦鹉科及鹎科;野外繁殖?显着高于总繁殖?的只有梅花雀科。