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And since hawks are also usually silent when hunting, the alarm calls of local birds may be the most effective sound creating an illusion of a hawk's presence, scientists say. “Mimicry likely ...

We're replacing BBC Sounds outside the UK and bringing you BBC.com, a seamless way to read, watch, and listen - all in one place.

A tiny bird in Australia has been spotted using fake hawk alarm calls to scare threats away from their nests to protect their babies, shedding more light on deceptive sounds used by animals to ...