Did my best to try and make sure it wasn't something else before posting as this, so hope I am right. When it first arrived it did make a couple of calls of 2 and 3 short noises (I have no idea how to describe them, but like a loud Weh weh weh?). The first time it came over it harassed the kangaroo a few times before leaving it alone. When it came over another time it was being harassed by two magpie larks.