To stay late into the nest of chicks is not the same length: passerine birds and hatchery date generally …

晚成性幼雏留巢时间的长短也不相同：雀形目鸟类与孵卵日期大致…

The Welcome Swallow is a small passerine bird in the swallow family native to Australia and nearby islands, but not until recently to New Zealand.

迎宾燕是小型燕科雀形目鸟类，生长于澳大利亚和附件的岛屿，但是到现在都没有在新西兰发现。

The results showed that the acoustic structures of non-passerine, sub-oscine passerine and oscine passerine's songs have significant differences.

结果表明，非鸣禽、亚鸣禽及鸣禽叫声的声学结构具有很大的差异性。