Dalziell:  So the whole thing was absolutely bizarre.

Dalziell：所以整件事绝对是离奇的。

Dalziell:  I use them, mobbing flocks, to try and avoid stepping on snakes while I'm dong my fieldwork in Australia.

Dalziell：我在澳大利亚进行实地考察时，使用它们围攻羊群，尽量避免踩到蛇。

Dalziell:  So we found that males didn't produce this mobbing flock mimicry when a real predator was around—not at all.

Dalziell：所以我们发现，当真正的捕食者在附近时，雄性不会产生这种蜂拥而至的群体模仿——根本不会。

Dalziell:  But we soon realized that, every now and then, the male lyre bird was producing a completely different kind of mimicry.

Dalziell：但我们很快意识到，雄性竖琴鸟时不时地产生一种完全不同的模仿。