Over the past few days I have been hearing a new bird call that I have not previously heard around here before. It sounds like the "beep beep beep" of a truck reversing, even the speed and rhythym of the beeps sounds like a truck. It goes on through the day and even after dusk, though not too late. I have not sighted the bird, or even seen any new birds around. It sounds so much like a truck reversing that I would guess it was a mimicking lyrebird, however we are in the Eastern suburbs of Melbourne so I doubt there would be one around here. We're not too far from the Dandenong Ranges, but still too far for a lyrebird I'd say (we're too built up)!