Superb lyrebird imitating workers
In this recording of Chook the lyrebird, made for ABC TV in 1987, the bird's call resembles the sound of workers.
Lyrebirds are great mimics, copying many sounds in their environment. While in nature this consists predominantly of other birds, their calls sometimes reflect the human impact on their environment.
Greg Wignell recorded the Superb Lyrebird at Healesville, Victoria. The original recordings are in the ABC’s natural history audio collection at Ripponlea in Melbourne.
Image: CSIRO (CC BY 3.0), via Wikimedia Commons